NIMBUS® PAEDIATRIC SYSTEM Service Manual

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Nimbus Paediatric Service Manual

Service Bulletins Incorporated Bulletin

Issue 2 June 2010

Content

SER0011

Date incorporated

Nimbus Paediatric Service Manual

SER0011

Issue 2 June 2010

Nimbus Paediatric Service Manual

CONTENTS CHAPTER 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 About This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Warnings, Cautions and Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Technical Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Operating Principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Cardio-Pulmonary Resuscitation (CPR) Control . . . . . . . . . . . . . . . . . . . . . . 4 Auto-Matt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Tubeset and Transport Facility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 System Start Up Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

CHAPTER 2 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Pump Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Pump Maintenance Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Pump Soak Times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Mattress Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Mattress Maintenance Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

CHAPTER 3 Pump Repair. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Mains/Power Cable Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Removing the Hanging Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Installing the Hanging Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Disassembling the Rear Case . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Assembling the Rear Case . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Disassembling the Pump Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Assembling the Pump Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Replacing the Restrictor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Replacing the Relief Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Removing the Solenoid Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Installing the Solenoid Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Removing the Silencer Bag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Installing the Silencer Bag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Removing the Lid and Cables from the Compressor Casing. . . . . . . . . . . . . . . . . . . 25 Installing the Lid and Cables to the Compressor Casing. . . . . . . . . . . . . . . . . . . . . 25

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Nimbus Paediatric Service Manual

Removing the Compressor Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Installing the Compressor Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Removing the Anti-Vibration (AV) Mounts . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Installing the Anti-Vibration (AV) Mounts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 Replacing the Compressor Filters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Removing the Compressor Bump Stops . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Installing the Compressor Bump Stops . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Replacing the Valve/Shuttle Assembly on the Compressor. . . . . . . . . . . . . . . . . . . 35 Replacing the Coil/E-stack Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Replacing the Battery on the Display Panel PCB . . . . . . . . . . . . . . . . . . . . . . . . 37 Removing the Display Panel PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 Installing the Display Panel PCB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 Removing the Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Installing the Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Removing the Sounder Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 Installing the Sounder Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 Replacing the Fuse on the Display Panel PCB . . . . . . . . . . . . . . . . . . . . . . . . . 43 Removing the Pressure Control Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 Installing the Pressure Control Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 Adjusting the Pressure Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 Removing the High Pressure Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 Installing the High Pressure Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 Removing the Rotary Valve Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 Installing the Rotary Valve Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 Replacing the Manifold Gasket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 Repairing the Pneumatic Side Panel Assembly. . . . . . . . . . . . . . . . . . . . . . . . . 53 Removing the Pneumatic Side Panel Assembly . . . . . . . . . . . . . . . . . . . . . . . . 55 Installing the Pneumatic Side Panel Assembly . . . . . . . . . . . . . . . . . . . . . . . . . 56 Removing the Mains/Power Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 Installing the Mains/Power Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 Removing the Mains/Power Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 Installing the Mains/Power Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 Removing the Mains/Power Side Panel Assembly . . . . . . . . . . . . . . . . . . . . . . . 61 Installing the Mains/Power Side Panel Assembly . . . . . . . . . . . . . . . . . . . . . . . . 61 Replacing the Mains/Power Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 Replacing the Plastic Panel on the Mains/Power Side Panel Assembly . . . . . . . . . . . . 65 Removing the Pump Case . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 Installing the Pump Case . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 Pump Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

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CHAPTER 4 Mattress . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 Tubeset. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71 Operation of the New Version Tubeset Connector . . . . . . . . . . . . . . . . . . . . . 71 Operation of the Old Version Tubeset Connector . . . . . . . . . . . . . . . . . . . . . . 72 Replacing the Release Button - Old Connector version . . . . . . . . . . . . . . . . . . . . . 73 New Tubeset Assembly Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 Repairing the New Tubeset Connector Assembly . . . . . . . . . . . . . . . . . . . . . . . . 75

CHAPTER 5 Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79 Troubleshooting Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

CHAPTER 6 Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81 Pump Flow, Pressure and Function Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81 Test Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81 Pressure Relief Valve Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 Power Fail Alarm Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 Low Pressure Alarm Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 High Pressure Alarm Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 High/Low Pressure Setpoint and Mute Mode Checks . . . . . . . . . . . . . . . . . . . . 82 Calibration Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83 Alarm Reset and Pump Serial Number Check . . . . . . . . . . . . . . . . . . . . . . . 83 High/Low Pressure Setpoint Checks and Mute Mode Check using the Psion Organiser . . . . 83 Psion Organiser Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83 High Pressure Switch Setpoint Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83 Low Pressure Switch Setpoint Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83 Mute Mode Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84 High/Low Pressure Setpoint Checks and Mute Mode Check using the IR Interface Module . . 84 IR Interface Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84 High Pressure Switch Setpoint Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85 Low Pressure Switch Setpoint Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85 Mute Mode Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85 Alarm Reset and Pump Serial Number Check using the Psion Organiser . . . . . . . . . . . . 85 Psion Organiser Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85 Alarm Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

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Pump Serial Number Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86 Alarm Reset and Pump Serial Number Check using the IR Interface Module . . . . . . . . . 87 IR Interface Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 Alarm Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 Pump Serial Number Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 Psion Organiser Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89 IR Interface Setup and Passwords . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89 Electrical Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91 Electrical Safety Checks - Class I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91 Earth Continuity Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91 Insulation Resistance Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91 Dielectric Strength Test (Flash Test) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91 Leakage Circuit Test (USA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92 Mattress Pressure and Function Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93 Test Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

CHAPTER 7 Technical Specification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 Mattress Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 Cover Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 Cleaning Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

CHAPTER 8 Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99 Overall Assembly Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99 Pump Assembly Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 Mattress Assembly Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

CHAPTER 9 Service Contact Details. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .107

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Nimbus Paediatric System Service Manual

Introduction

CHAPTER 1 INTRODUCTION 1

About This Manual

Arjohuntleigh strongly recommend that their equipment is only serviced by trained personnel and provide courses for customers who wish to become licensed to service their own equipment. In no event will Arjohuntleigh be responsible for any service performed by customers or third parties. This manual contains information on maintenance, servicing, repair, troubleshooting and testing for the Nimbus® Paediatric system which comprises a pump and a mattress. Read and understand this manual before attempting to service or repair the equipment.

Warnings, Cautions and Notes WARNINGS given in this manual identify possible hazards in procedures or conditions which, if not correctly followed, could result in death, injury or other serious adverse reactions. CAUTIONS given in this manual identify possible hazards in procedures or conditions which, if not correctly followed, could result in equipment failure or damage. Notes given in this manual are used to explain or amplify a procedure or condition.

WARNING: BEFORE PERFORMING ANY SERVICE OR MAINTENANCE PROCEDURES, ENSURE THAT THE EQUIPMENT HAS BEEN ADEQUATELY DECONTAMINATED. WARNING: VOLTAGES IN EXCESS OF 30 VOLTS RMS OR 50 VOLTS DC CAN, IN CERTAIN CIRCUMSTANCES, BE LETHAL. WHEN WORKING ON EQUIPMENT REQUIRING EXPOSURE TO LIVE, UNPROTECTED CONDUCTORS WHERE SUCH VOLTAGES ARE PRESENT, EXTREME CARE MUST BE EXERCISED.

2

Technical Description

The Nimbus Paediatric system is a Dynamic Flotation System to aid the prevention, treatment and management of pressure ulcers. Nimbus Paediatric system is a powered, air filled mattress replacement system, which is designed to replace the standard mattress. The patient is supported by 18 individual cells, all of which inflate alternately. The pump has microprocessor-aided control and alarm functions, and has LED indications on the front panel. The pump provides a dynamic system of inflating the support surface underneath the patient, cycling every 10 minutes to produce periods of pressure relief for the whole body. The mattress is enclosed by a polyurethane coated fabric cover. This cover has water-resistant, vapour permeable, and two-way stretch properties to assist with any repositioning requirements and enhance patient comfort, whilst protecting the mattress interior from contamination. It is simple to clean in situ, but can also be quickly unzipped and totally removed for cleaning. The system incorporates a sensor that automatically adjusts the support pressure within the system to accommodate different weight patients and their weight density or distribution. This sensor pad, known as the Auto-Matt® sensor, optimises the support pressure (the pressure to which the cells are inflated) to the minimum required to support that patient in a given position.

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Chap 1 Page 1

Introduction

Nimbus Paediatric System Service Manual

In the event of cardiac arrest, the mattress can be quickly deflated in less than 10 seconds to allow cardiac resuscitation procedures to be performed. The Nimbus Paediatric system is designed to operate in 3 modes: •

Dynamic mode, which continuously changes the tissue pressure points, providing a high degree of pressure relief.

•

Static mode, which provides constant low pressure reduction and is used when a moving surface is contraindicated for the patient.

•

Autofirm mode, which provides a stable surface for nursing procedures, patient transfer and physiotherapy.

Operating Principle Figure 2 shows a simplified pneumatic diagram for the Nimbus Paediatric system. A compressor in the pump provides a source of air supply. The outputs from the compressor are fed: •

To the high pressure switch in the pump, which detects system over-pressures through blockages.

•

Via a T-tube to: •

The Auto-Matt sensor in the mattress.

•

The rotary valve in the pump. The rotary valve channels the air supply to: •

The cells (labelled “A” and “B”) in the mattress, via the tubeset.

•

The pressure control assembly in the pump. The low pressure switch, which is located inside the pressure control assembly, detects if the air pressure in the system falls below a minimum value.

The T-tube also vents to the atmosphere via a restrictor. This facility provides a constant bleed to reduce the air pressure from the compressor. In the pump, there is a solenoid valve between the pressure control assembly and the tubeset manifold which is used to increase the mattress air pressure in Autofirm mode. The distribution of air by the rotary valve in the pump is as shown in Figure 1 and Table 1. This allows cells “A” and “B” in the mattress to be inflated and deflated in a cycle period of ten minutes.

Alternating 1 Static

2

Alternating 3

Static

4 Figure 1 - Mattress Cell Inflation Cycle Table 1 - Air Supply Distribution by the Rotary Valve

Part of Cycle

Outlet A

Outlet B

Comment

1

Alternating

Inlet (C)

Atmosphere (D)

“A” cells inflated

2

Static

Inlet (C)

Inlet (C)

All cells inflated (“A” and “B”)

3

Alternating

Atmosphere (D)

Inlet (C)

“B” cells inflated

4

Static

Inlet (C)

Inlet (C)

All cells inflated (“A” and “B”)

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Introduction

Compressor Restrictor D (Atmosphere) High Pressure Switch

Atmosphere

C

Restrictor A

B

Pressure Control Assembly Adjuster

Rotary Valve Atmosphere

Low Pressure Switch

Solenoid Valve Relief Valve Plug

Pump When Transport Mode is activated the two cell sections link to provide the transport mode support.

Tubeset

TRANSPORT SWITCH

CPR Control Mattress

Auto-Matt Sensor Pad

Cells “A”

Cells “B”

Figure 2 - Schematic Pneumatic System Diagram

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Chap 1 Page 3

Introduction

Nimbus Paediatric System Service Manual

Cardio-Pulmonary Resuscitation (CPR) Control To deflate the mattress rapidly in the event of cardiac arrest, pull the CPR tag (positioned half-way along the side of the mattress) firmly up and away from the mattress. This will disconnect two CPR plugs and rapidly deflate the mattress in approximately 10 seconds. To reset the mattress after the CPR has been activated, push the CPR plugs fully into the holes in the side of the mattress, close the CPR cover flap using the hook and loop strips provided. Make sure that the CPR tag hangs freely from the CPR cover flap.

Auto-Matt The Auto-Matt sensor consists of a flexible air sensor pad which is located underneath the mattress cells. It acts as a pressure regulator, and accommodates changes in patient weight and position. It is pneumatically connected in parallel to the mattress cells, such that when it is not occluded it channels the air supply away from the cells (occlusion of the Auto-Matt sensor is by patient weight and position). In this manner it allows internal mattress air pressures to be compensated to that required to support the patient. With no patient on the mattress the Auto-Matt sensor is not occluded, and pressure in the mattress is governed by the pressure control on the pump (refer to Figure 2). This, in turn, is set to a pressure range which can be adjusted slightly to change mattress pressure for patient comfort. With a patient on the mattress, pressure is exerted on the cells, and this can partially or totally occlude the Auto-Matt sensor. This results in more air being supplied to the cells increasing their internal pressure until full patient support is achieved. Should the patient change to a position which necessitates a lower pressure, air is released via the Auto-Matt sensor through the pressure control valve until the correct lower pressure is achieved in the cells.

Tubeset and Transport Facility The tubeset incorporates a flexible, compact anti-kink tube that is resistant to crushing and the obstruction of air flow. Incorporated into the tubeset is the facility to set the mattress to Normal or Transport mode. There is a quick connect system for connecting the tubeset of the mattress to the pump. The other end of the tubeset is permanently connected to the mattress.

System Start Up Sequence After the pump is switched on the start up sequence is as follows: •

All display indicators illuminate for a few seconds.

•

The On and Wait indicators remain illuminated while the mattress inflates (which will take approximately 20 minutes). All the other indicators go out.

•

When the minimum pressure setting is reached the Wait indicator goes out.

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Nimbus Paediatric System Service Manual

Maintenance

CHAPTER 2 MAINTENANCE 1

Pump Service

A pump should be serviced every 12 months. To carry out a service on the pump, do the following: 1.1

Carry out the Pump Maintenance Checks (Refer to Page 5, Section 2).

1.2

Replace the following components: 1.2.1

Case seal (Refer to Chapter 3, Page 15, Section 4 and Chapter 3, Page 15, Section 5).

1.2.2

Valve shuttle assembly (Refer to Chapter 3, Page 35, Section 23).

1.2.3

Compressor AV mounts (Refer to Chapter 3, Page 30, Section 18 and Chapter 3, Page 31, Section 19).

1.2.4

Compressor filters (Refer to Chapter 3, Page 33, Section 20).

1.2.5

Case filter (Refer to Chapter 3, Page 17, Section 6 and Chapter 3, Page 17, Section 7).

1.2.6

Pump manifold gasket (Refer to Chapter 3, Page 51, Section 40).

1.3

Reassemble the pump and soak for the recommended time (Refer to Page 6, Section 3).

1.4

Carry out a flow, pressure and function test on the pump in accordance with Chapter 6, Page 81, Section 1.

1.5

Carry out electrical tests on the pump in accordance with Chapter 6, Page 91, Section 8.

2

Pump Maintenance Checks

If any parts are found to be damaged they must be replaced in accordance with Chapter 3, Pump Repair. 2.1

2.2

Visually inspect the following for damage, wear and potential faults: • Outer casing:

Check for damage and security

• Switches, control knobs:

Check function

• Hanging bracket:

Check for damage and security

• Outlet ports:

Check for damage and free from obstructions

• Rubber feet:

Check for security

• Fuses:

Check condition

• Front panel:

Check for damage to LEDs and buttons

• Mains lead:

Check for damage and security of plug

• Labels:

Check all labels are present and legible

Disassemble the Rear Case (Refer to Chapter 3, Page 15, Section 4) and visually inspect the following for damage, wear, security and potential faults: • Compressor assembly and bump stops. • Rotary valve assembly.

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Maintenance

Nimbus Paediatric System Service Manual

• Display panel PCB. • Pressure control assembly. • High pressure switch. • Solenoid valve and relief valve assembly. • Silencer bag. • Constant bleed air restrictor. • Wiring, and check connections to the mains/power switch, fuseholders, mains/power filter and connector block. • Tubing. • Screws, nuts and bolts. 2.3

Remove the compressor lid and visually inspect the following for damage, wear and potential faults: • Coils assemblies. • Elbows and connectors. • Gaskets

3

Pump Soak Times

3.1

A pump must be soaked with its ports occluded for the following reasons: • To ensure that the pump is at normal running temperature prior to pneumatic performance tests being carried out. • To stress test major/critical parts which have been replaced or repaired.

3.2

All pumps should be soaked for a period of 30 to 60 minutes prior to any pneumatic performance test being carried out.

3.3

If any of the following major/critical components have been replaced or repaired, then it is recommended that the pump be soaked for 12 hours prior to being tested: • Valve shuttle assembly • Silencer bag • Display panel PCB • Compressor • Rotary valve assembly

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4

Maintenance

Mattress Service

To carry out a service on the mattress, do the following: 4.1

Carry out the Mattress Maintenance Checks (Refer to Page 7, Section 5).

4.2

Carry out an inflation test on the mattress in accordance with Chapter 6, Page 93, Section 9.

5

Mattress Maintenance Checks

If any parts are found to be damaged they must be replaced in accordance with Chapter 4, Mattress Repair. 5.1

Visually inspect the following for damage, wear and potential faults: • Base and top cover

Check for tears, staining, clarity of printed labels.

• Base/top cover zip

Check the zip runs freely and condition of zip teeth.

• Anti-slip pads

Check for damage.

• Fixing straps

Check condition and security.

• Loop base sheet

Check for broken/torn loops.

• Sensor pad

Check condition and security of tubes.

• Soft/hard foam sheets

Check condition.

• Connectors

Check for damage and security.

• Tubing

Check for security and ensure no kinks or twists.

• Cells

Check for damage and security.

• Manifold

Check for damage and security.

• Press studs

Check condition.

• CPR control plugs

Check operation of the fast deflate mechanism.

• Tubeset assembly

Check for damage and security of connection.

• Transport facility on tubeset

Check operation.

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CHAPTER 3 PUMP REPAIR 1

General

This chapter details repair procedures for the Nimbus Paediatric pump. All repairs should be carried out by Arjohuntleigh approved service personnel. After carrying out a service or any repairs, the pump must be soaked for the recommended time (Refer to Chapter 2, Page 6, Section 3) and tested for serviceability. Table 2 defines the test requirements which must be carried out following certain repairs: To carry out a flow, pressure and function test on the pump refer to Chapter 6, Page 81, Section 1. To carry out the electrical tests on the pump refer to Chapter 6, Page 91, Section 8. Refer to Figure 3 for the electrical circuit diagram for the pump.

Mains/Power Cable Check WARNING: FOR SAFETY, IF THE MAINS/POWER CABLE IS ACCIDENTALLY PULLED OUT OF THE PUMP, THE EARTH WIRE MUST BE THE LAST OF THE THREE WIRES IN THE CABLE TO BE DISCONNECTED FROM THE PUMP. If the rear case is removed for any reason, either to inspect or to repair any sub-assembly, then the mains/power cable must be checked inside the pump where it is connected to the 3-way connector, to make sure that: •

The Live and Neutral wires are as short as possible.

•

The Earth wire is longer than the other two wires, and long enough to have a loop in it.

If the wire lengths are incorrect, particularly if the Earth wire is too short, then the ends of the wires in the mains/power cable must be re-made and re-connected to the 3-way connector. Refer to Page 59, Section 47 (Installing the Mains/Power Cable) for details on how to check the installation of the three wires in the mains/power cable, and how to re-make them if necessary.

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Table 2 - Repair to Testing Requirements Flow / Pressure & Function Test

Electrical Safety

Compressor

Yes

Yes

Pressure Control

Yes

Yes

Rotary Valve

Yes

Yes

Silencer Bag

Yes

No

High / Low Pressure Switches

Yes

Yes

Constant Bleed Air Restrictor

Yes

No

Solenoid Valve Assembly

Yes

Yes

Relief Valve Assembly

Yes

No

Shuttle Assembly

Yes

Yes

Coils

Yes

Yes

Elbows & Connectors

Yes

No

Anti-vibration (AV) Mounts

Yes

Yes

Display Panel Printed Circuit Board (PCB)

Yes

Yes

Front Casing

Yes

Yes

Rear Casing

No

No

Pneumatic Side Panel Assembly

Yes

Yes

Mains Inlet Side Panel Assembly

Yes

Yes

Battery

No

Yes

Switches

No

Yes

Fuses

No

Yes

Electrical Connectors

No

Yes

Mains Lead

No

Yes

Components / Assemblies

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Figure 3 - Electrical Schematic Circuit Diagram

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10 30

40

20

Figure 4 - Replacing the Hanging Bracket

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2

Removing the Hanging Bracket

2.1

Ease the bottom of the hanging bracket off of the base of the pump (Refer to Figure 4).

2.2

Rotate the hanging bracket and remove it from the handle recess in the back of the pump.

3

Installing the Hanging Bracket

3.1

Lay the pump face down and insert the bridge of the hanging bracket into the handle recess of the pump (Refer to Figure 4).

3.2

Pull the bottom of the hanging bracket over the bottom of the pump and push firmly downwards so that the bracket clips into place around the base of the pump.

Table 3 - Hanging Basket Parts List Item

Part Number

-

151123

Hanging Bracket Assembly (includes Items 10 to 40)

1

10

151427

Bracket

1

20

151428

Wire

1

30

FAS046

Screw, M3 x 10 Csk Head

2

40

FAS216

Nutsert, M3 x 0.5 Euro Series

2

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60 10

30

60

40 50

20 Mains/Power Side Panel Assembly

Pneumatic Side Panel Assembly 60

Figure 5 - Rear Case Assembly

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Pump Repair

Disassembling the Rear Case

WARNING: BEFORE DISMANTLING THE PUMP UNIT, MAKE SURE THAT THE UNIT HAS BEEN ISOLATED FROM THE MAINS/POWER SUPPLY BY REMOVING THE MAINS/POWER PLUG FROM THE WALL SOCKET. 4.1

Remove the hanging bracket from the pump (Refer to Page 13, Section 2).

4.2

Place the pump unit on a flat surface with the front case (Fig 5, Item 20) face down.

4.3

Unscrew the 4 screws (Fig 5, Item 30) and lift the rear case (Fig 5, Item 10) away from the front case (Fig 5, Item 20). Keep the screws in a safe place.

4.4

Carefully remove the two sponge cords (Fig 5, Items 40 and 50) from the top and bottom halves of the front case (Fig 5, Item 20), and inspect for damage.

5

Assembling the Rear Case

5.1

Place the pump unit on a flat surface with the front case (Fig 5, Item 20) face down.

5.2

Replace the sponge cords (Fig 5, Items 40 and 50) if the existing ones are damaged, and install them as follows: 5.2.1

Carefully insert the longer sponge cord (Fig 5, Item 40) into the groove in the top half of the front case (Fig 5, Item 20).

5.2.2

Carefully insert the shorter sponge cord (Fig 5, Item 50) into the groove in the bottom half of the front case (Fig 5, Item 20).

5.3

Install the rear case (Fig 5, Item 10).

5.4

Install the 4 screws (Fig 5, Item 30) to the rear case and tighten.

5.5

Install the hanging bracket to the pump (Refer to Page 13, Section 3).

Table 4 - Rear Case Parts List Item

Part Number

10

501055

Rear Case Assembly

1

20

198300

Front Case

1

30

FAS110

Screw, M4 x 16 Pan Head

4

40

501063

Sponge Cord, Length 475mm

1

50

501064

Sponge Cord, Length 350mm

1

60

507413

Rubber Foot

8

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Slot

20

30 40 20

Slot

10

Figure 6 - Pump Filter Assembly

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6

Disassembling the Pump Filter

6.1

Disassemble the rear case (Refer to Page 15, Section 4).

6.2

Lay the rear case (Fig 6, Item 10) on a flat surface, and remove the 6 screws (Fig 6, Item 40) around the filter housing plate (Fig 6, Item 20). Keep the screws in a safe place.

6.3

Remove both filter housing plates (Fig 6, Item 20) and the filter (Fig 6, Item 30).

6.4

Discard the old filter.

7

Assembling the Pump Filter

7.1

Lay the rear case (Fig 6, Item 10) on a flat surface.

7.2

Install the new filter (Fig 6, Item 30) between the two filter housing plates (Fig 6, Item 20), and install them onto the back of the rear case. Note: Make sure the slots in the filter housing plates are uppermost, in the positions shown in Figure 6.

7.3

Install the 6 screws (Fig 6, Item 40) to the filter housing plates, and tighten.

7.4

Assemble the rear case (Refer to Page 15, Section 5).

Table 5 - Pump Filter Parts List Item

Part Number

10

198301

Rear Case

1

20

151311

Filter Housing Plate

2

30

151312

Filter Felt

1

40

FAS179

Screw, 2.5mm dia x 10mm Pan Head

6

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Pressure Control Assembly 50

40 High Pressure Switch 110 30

60

120

100

90

5-way Manifold

80 Rotary Valve Assembly

20

10

70

130

140 150

Compressor Assembly

Figure 7 - Replacing the Solenoid Valve, Relief Valve, Restrictor and Silencer Bag

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Pump Repair

Replacing the Restrictor

The restrictor (Fig 7, Item 40) is installed into the T-piece (Fig 7, Item 30) with adhesive, so both parts must be replaced if the restrictor is faulty. 8.1

Disassemble the rear case (Refer to Page 15, Section 4).

8.2

Disconnect the following two tubes from the T-piece (Fig 7, Item 30): •

The tube to the silencer bag (Fig 7, Item 70).

•

The tube to the 5-way manifold and rotary valve assembly (Fig 7, Item 80).

8.3

Remove the T-piece, together with the restrictor (Fig 7, Item 40).

8.4

Install the new restrictor (Fig 7, Item 40) into the tight end of the new T-piece (Fig 7, Item 30) using adhesive (Fig 7, Item 160). Note: Make sure the adhesive does not block the restrictor.

8.5

With the restrictor on the T-piece pointing towards the pressure control assembly, connect the following two tubes to the T-piece (Refer to Figure 7):

8.6

8.5.1

The tube to the 5-way manifold and rotary valve assembly (Fig 7, Item 80) onto the 90° connector on the T-piece.

8.5.2

The tube to the silencer bag (Fig 7, Item 70) onto the straight connector on the T-piece.

Assemble the rear case (Refer to Page 15, Section 5). Table 6 - Solenoid Valve, Relief Valve, Restrictor and Silencer Bag Parts List

Item

Part Number

10

631075

Relief Valve

1

20

631306

Solenoid Valve MAC35 220V

1

30

NMB366

T-Piece, 25mm

1

40

403306

Restrictor

1

50

631071

Silencer Bag

60

197113

Tube, 25mm long (Compressor - Silencer Bag)

1

70

252149

Tube, 240mm long (T-Piece - Silencer Bag)

1

80

198146

T-Tube, Long (T-Piece - 5-way Manifold - Rotary Valve Assy)

1

90

198145

T-Tube, Short (5-way Manifold - Rotary Valve Assy - Pressure Control Assy)

1

100

631073

Tube, 100mm long (5-way Manifold - Solenoid Valve)

1

110

631074

Tube, 130mm long (Solenoid Valve - Pressure Control Assy)

1

120

151091

Tube Assembly, High Pressure Switch

1

130

151386

P-Clip, No. 6

3

140

FAS144

Nut, M4 Full

3

150

FAS053

Washer, M4 Anti-vibration

3

160

REF

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10

Figure 8 - Relief Valve

Compressor Assembly

20

10

30 Solenoid Valve Wires

Port 2 Connector

Port 3 Connector

40

50

Port 1 Connector

Note: Make sure the Elbow Connector on Port 3 is pointing towards the Port 2 Connector 60

30

60

70

80

Detail: Securing the Solenoid Plate (Item 30) to the Front Case

Figure 9 - Replacing the Solenoid Valve and Solenoid Plate

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Pump Repair

Replacing the Relief Valve

The relief valve (Fig 8, Item 10) is installed into the side of the solenoid valve (Fig 7, Item 20), and can be replaced without removing the solenoid valve. 9.1

Disassemble the rear case (Refer to Page 15, Section 4).

9.2

Pull the relief valve (Fig 7, Item 10) out of the solenoid valve (Fig 7, Item 20).

9.3

Install the new relief valve (Fig 8, Item 10) into the vacant port connector on the solenoid valve. Note: Make sure the relief valve is pushed fully into the solenoid valve.

9.4

Assemble the rear case (Refer to Page 15, Section 5).

10

Removing the Solenoid Valve

10.1

Disassemble the rear case (Refer to Page 15, Section 4).

10.2

Disconnect the tube to the silencer bag (Fig 7, Item 70) from the T-piece (Fig 7, Item 30).

10.3

Disconnect the following two tubes from the solenoid valve (Fig 7, Item 20): •

The tube to the 5-way manifold (Fig 7, Item 100) from the port 2 connector.

•

The tube to the pressure control assembly (Fig 7, Item 110) from the port 3 connector.

10.4

Disconnect the solenoid valve connector from the display panel PCB (Fig 3, PCB Con 10).

10.5

Remove the two solenoid valve wires from the cable clip (Fig 12, Item 170) on the compressor bracket (Fig 12, Item 20).

10.6

Cut and remove the cable ties (Table 7, Item 90) which secure the two solenoid valve wires to other wires.

10.7

Lift the pneumatic side panel assembly out of the front case (Refer to Figure 5), so that the bottom of the solenoid valve can be accessed. Remove the two screws (Fig 9, Item 40) and washers (Fig 9, Item 50) from the solenoid plate (Fig 9, Item 30). Note: It may be necessary to remove one or more of the tubes around the pneumatic side panel assembly in order to get enough access to the solenoid valve.

10.8

Remove the solenoid valve (Fig 7, Item 20) from the solenoid plate. Table 7 - Solenoid Valve and Solenoid Plate Parts List

Item

Part Number

10

631075

Relief Valve

1

20

631306

Solenoid Valve MAC35 220V

1

30

631328

Solenoid Plate

1

40

FAS151

Screw, M3 x 20mm Pan Head

2

50

FAS002

Washer, 6BA Anti-vibration

2

60

FAS218

Screw, 4mm dia x 12 Pan Head

2

70

FAS053

Washer, M4 Anti-vibration

1

80

198082

Earth Wire Assembly

1

90

BP196

Cable Tie

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11

Installing the Solenoid Valve

11.1

If necessary, replace the relief valve (Fig 7, Item 10) on the solenoid valve (Fig 7, Item 20), as follows: 11.1.1

Pull the relief valve out of the solenoid valve.

11.1.2

Install the new relief valve (Fig 8, Item 10) into the port 1 connector on the solenoid valve (Refer to Figure 9). Note: Make sure the relief valve is pushed fully into the solenoid valve.

11.2

Position the new solenoid valve (Fig 7, Item 20) on the solenoid plate (Fig 9, Item 30). Note: Make sure the two wires from the solenoid valve pass on opposite sides of the relief valve (Refer to Figure 9).

11.3

Lift the pneumatic side panel assembly out of the front case (Refer to Figure 5), so that the bottom of the solenoid valve can be accessed. Install the two screws (Fig 9, Item 40) and washers (Fig 9, Item 50) to secure the solenoid valve to the solenoid plate, and tighten.

11.4

Connect the following two tubes onto the solenoid valve (Fig 7, Item 20): •

The tube to the 5-way manifold (Fig 7, Item 100) from the port 2 connector.

•

The tube to the pressure control assembly (Fig 7, Item 110) from the port 3 connector.

11.5

Connect the tube to the silencer bag (Fig 7, Item 70) onto the T-piece (Fig 7, Item 30).

11.6

Install the pneumatic side panel assembly back into the front case (Refer to Figure 5). Note: Re-connect any other tubes which were disconnected when the pneumatic side panel assembly was lifted out of the front case.

11.7

Connect the solenoid valve connector onto the display panel PCB (Fig 3, PCB Con 10).

11.8

Push the two solenoid valve wires into the cable clip (Fig 12, Item 120) on the compressor bracket (Fig 12, Item 20).

11.9

Fit cable ties (Table 7, Item 90) to secure the two solenoid valve wires to other wires.

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12

Removing the Silencer Bag

12.1

Disassemble the rear case (Refer to Page 15, Section 4).

12.2

Disconnect the following two tubes from the silencer bag (Fig 7, Item 50): •

The tube to the compressor assembly (Fig 7, Item 60).

•

The tube to the T-piece (Fig 7, Item 70).

12.3

Remove the silencer bag.

13

Installing the Silencer Bag

13.1

Put the new silencer bag (Fig 7, Item 50) next to the compressor assembly (Refer to Figure 7). Note: Make sure the silencer bag is the correct way up. The two spigots on the silencer bag should be at the top, and facing towards the compressor assembly (Refer to Figure 10).

13.2

Connect the following two tubes to the new silencer bag (Refer to Figure 10): •

The tube to the compressor assembly (Fig 7, Item 60).

•

The tube to the T-piece (Fig 7, Item 70).

Note: Make sure the silencer bag spigots are pushed fully into each tube. 13.3

Assemble the rear case (Refer to Page 15, Section 5).

Spigot Silencer Bag Tube to the Compressor Assembly

Tube to the T-Piece

Figure 10 - Silencer Bag Orientation

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50

20

60

40 10 30

Figure 11 - Removing the Compressor Lid

Table 8 - Compressor Lid Parts List Item

Part Number

10

165071

Compressor Assembly - 120V (USA)

165075

Compressor Assembly - 220V (UK, Euro)

20

165311

Compressor Lid

1

30

165312

Compressor Lid Gasket

1

40

FAS177

Screw, M4 x 8 Csk Head

4

50

165303

Grommet, Lead Through

2

60

165300

Grommet, Blank

2

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14

Removing the Lid and Cables from the Compressor Casing

14.1

Remove the four screws (Fig 11, Item 40) and the compressor lid (Fig 11, Item 20) from the compressor assembly (Fig 11, Item 10).

14.2

Lift the two pairs of cables, together with their rubber grommets (Fig 11, Item 50), out from the side of the compressor casing. Note: Make sure the two blank grommets (Fig 11, Item 60) on the other side of the compressor, remain in their cutouts in the top of the compressor casing.

15

Installing the Lid and Cables to the Compressor Casing

15.1

Push the rubber grommets (Fig 11, Item 50) on the two pairs of compressor cables into the cutouts in the top corners of the compressor casing. Note: Make sure the two blank grommets (Fig 11, Item 60) are installed in the other top corners of the compressor casing.

15.2

15.3

If necessary, replace the compressor lid gasket (Fig 11, Item 30) as follows: 15.2.1

Remove the old gasket and clean the compressor lid (Fig 11, Item 20).

15.2.2

Peel the back off of the new gasket (Fig 11, Item 30), and stick in position on the lid.

Install the compressor lid (Fig 11, Item 20) onto the compressor assembly (Fig 11, Item 10), and secure the lid with screws (Fig 11, Item 40).

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140 140 130

150

130

140 Connector B

130

80

70

60 100

100 10

Connector A

90

110

50

50

130

110

120 120

Earth Stud

130

170 160

40

130

20

140

130

30

140

Figure 12 - Replacing the Compressor Assembly and AV Mounts

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16

Removing the Compressor Assembly

16.1

Disassemble the rear case (Refer to Page 15, Section 4).

16.2

Remove the solenoid valve from the solenoid plate (Refer to Page 21, Section 10).

16.3

Remove the silencer bag (Refer to Page 23, Section 12). Note: This is to prevent any damage to the silencer bag during the removal of the compressor assembly.

16.4

Disconnect the following two tubes from the compressor assembly (Fig 12, Item 10): •

From the high pressure switch to the compressor (Figure 12, Connector A).

•

From the silencer bag to the compressor (Figure 12, Connector B).

16.5

On the 5-way connector, loosen the two screws on the compressor side nearest the side of the case, and remove the two red and two white wires (Refer to Figures 3 and 13).

16.6

Remove the compressor wires from the cable clip (Fig 12, Item 170) on the compressor bracket (Fig 12, Item 20).

Table 9 - Compressor and AV Mounts Parts List Item

Part Number

10

165071

Compressor Assembly - 120V (USA)

165075

Compressor Assembly - 220V (UK, Euro)

20

151310

Mounting Bracket with Earth Stud

1

30

198400

Mounting Bracket

1

40

631328

Solenoid Plate

1

50

151364

Anti-vibration (AV) Mount

4

60

252149

Tube, 240mm long (T-Piece - Silencer Bag)

1

70

631074

Tube, 130mm long (Solenoid Valve - Pressure Control Assy)

1

80

151103

Earth Wire Assembly, Compressor

1

90

198082

Earth Wire Assembly, Solenoid Valve

1

100

151386

P-Clip, No. 6

3

110

FAS218

Screw, 4mm dia x 12 Pan Head

2

120

FAS183

Screw, 4mm x 8mm Pan Head

4

130

FAS053

Washer, M4 Anti-vibration

13

140

FAS144

Nut, M4 Full

8

150

FAS160

Washer, M4 Plain

1

160

198399

PVC Beading

170

NMB168

Loom Retaining Bracket, 9mm

180

REF

190

BP196

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16.7

Cut and remove any cable ties (Table 9, Item 190) which secure the four compressor wires to other wires.

16.8

Remove the lid and cables from the compressor casing (Refer to Page 25, Section 14). Note: This will enable the nuts and washers to be removed from the top of the compressor.

16.9

Remove the nuts (Fig 12, Item 140) and washers (Fig 12, Items 130 and 150) which secure the outer corners of the compressor casing to the AV mounts (Fig 12, Item 50).

16.10 Remove the three P-clips (Fig 12, Item 100), together with the following two tubes from the top of the compressor: •

From the T-piece to the silencer bag (Fig 12, Item 60).

•

From the solenoid valve to the pressure control assembly (Fig 12, Item 70).

Note: The P-clips can remain on the tubes. 16.11 Remove the compressor earth wire tag (Fig 12, Item 80) from the top of the compressor. 16.12 Carefully remove the compressor assembly (Fig 12, Item 10) from the AV mounts (Fig 12, Item 50).

Compressor Assembly

Red Wire

White Wire

5-way Connector

Green/Yellow Blue Brown Blue Brown

Red Wire

White Wire

Mains/Power Input Display Panel PCB

Cable Tie

Note: The red and white wires from each side of the compressor are separated, and connected to different terminals on the 5-way connector.

Figure 13 - Compressor Assembly and 5-way Connector Wiring

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Installing the Compressor Assembly

17.1

Carefully install the compressor assembly (Fig 12, Item 10) onto the AV mounts (Fig 12, Item 50) that are on the compressor mounting brackets (Fig 12, Items 20 and 30). Note: Make sure that the two pairs of wires, together with their rubber grommets, are not pushed into their cutouts in the top corners of the compressor casing. This will enable the nuts and washers to be installed onto the top of the compressor.

17.2

Install the compressor earth wire tag (Fig 12, Item 80) onto the AV mount (Fig 12, Item 50) on the top of the compressor (Refer to Figure 12).

17.3

Make sure the three P-clips (Fig 12, Item 100) are fitted to the following two tubes, and install the three P-clips (plus tubes) onto the top of the compressor:

17.4

•

From the T-piece to the silencer bag (Fig 12, Item 60).

•

From the solenoid valve to the pressure control assembly (Fig 12, Item 70).

Install the washers (Fig 12, Item 130) and nuts (Fig 12, Item 140) onto the AV mounts (Fig 12, Item 50), and tighten. Note: Install an additional plain washer (Fig 12, Item 150) onto the AV mount with the compressor earth wire tag installed, before installing the washer (Fig 11, Item 130).

17.5

Install the lid and cables to the compressor casing (Refer to Page 25, Section 15).

17.6

Connect the red and white wires from the compressor to the two terminals on the 5-way connector (Refer to Figures 3 and 13). Tighten the screws to secure the wires. Note: Make sure the red and white wires from each side of the compressor are separated, and connected to different terminals on the 5-way connector, otherwise the compressor will not operate correctly.

17.7

Push the four compressor wires into the cable clip (Fig 12, Item 170) on the compressor bracket (Fig 12, Item 20).

17.8

Fit cable ties (Table 9, Item 190) to secure the four compressor wires to other wires.

17.9

Connect the following two tubes onto the compressor assembly (Fig 12, Item 10): •

From the high pressure switch to the compressor (Figure 12, Connector A).

•

From the silencer bag to the compressor (Figure 12, Connector B).

17.10 Install the silencer bag (Refer to Page 23, Section 13). 17.11 Install the solenoid valve onto the solenoid plate (Refer to Page 21, Section 10). 17.12 Assemble the rear case (Refer to Page 15, Section 5).

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18

Removing the Anti-Vibration (AV) Mounts

18.1

Remove the compressor assembly (Refer to Page 27, Section 16).

18.2

Remove the following items from the earth stud on the compressor mounting bracket (Fig 12, Item 20 and Fig 14, Item 10): 18.2.1

The top nut (Fig 14, Item 20) and washers (Fig 14, Items 30 and 40).

18.2.2

The following five earth wire tags: compressor assembly, rotary valve assembly, front panel/display panel PCB, mains/power filter and the solenoid valve assembly.

18.2.3

The bottom nut (Fig 14, Item 20) and washers (Fig 14, Items 30 and 40).

18.2.4

The earth wire tag from the mains/power input.

18.3

Remove the three screws (Fig 12, Item 120) and the compressor mounting bracket with the earth stud (Fig 12, Item 20) from the pump casing.

18.4

Remove the solenoid valve from the solenoid plate (Refer to Page 21, Section 10).

18.5

Remove the following items from the second compressor mounting bracket (Fig 12, Item 30): the two end screws (Fig 12, Item 110), the washer (Fig 12, Item 130)and solenoid valve earth wire tag (Fig 12, Item 90), and the solenoid plate (Fig 12, Item 40).

18.6

Remove the centre screw (Fig 12, Item 120) and the second compressor mounting bracket (Fig 12, Item 30) from the pump casing.

18.7

Remove the nuts (Fig 12, Item 140), washers (Fig 12, Item 130) and AV mounts (Fig 12, Item 50) from each compressor mounting bracket (Fig 12, Items 20 and 30).

20 Compressor Assembly

30

Rotary Valve Assembly

40

Front Panel / Display Panel PCB Mains / Power Filter Solenoid Valve Assembly 20 30

Mains / Power Input

40 Earth Stud 10 Figure 14 - Earth Stud Wiring Table 10 - Earth Stud Part List Item

Part Number

10

151310

Mounting Bracket with Earth Stud

1

20

FAS144

Nut, M4 Full

2

30

FAS053

Washer, M4 Anti-vibration

2

40

FAS160

Washer, M4 Plain

2

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19

Installing the Anti-Vibration (AV) Mounts

19.1

Install the four AV mounts (Fig 12, Item 50) to the compressor mounting brackets (Fig 12, Items 20 and 30) as follows: 19.1.1

Loosely install the washers (Fig 12, Item 130) and nuts (Fig 12, Item 140) to the bottom of the AV mounts (Fig 12, Item 50).

19.1.2

Check the orientation of the AV mounts on the mounting brackets. Make sure that the position of the hole in each AV mount is as shown in Figure 12.

19.1.3

Tighten each AV mount in turn, by holding the AV mount centrally and tightening the nut (Fig 12, Item 140). Note: Make sure the AV mount does not twist while the nut is tightened.

19.2

Place the compressor mounting bracket (Fig 12, Item 20, with the earth stud, earth label, cable clip and PVC beading) into the pump casing. Secure the bracket with the three screws (Fig 12, Item 120).

19.3

Install the following items onto the earth stud on the compressor mounting bracket (Fig 12, Item 20 and Fig 14, Item 10): Note: You must install the items in the order stated below, and as shown in Figure 14.

19.4

19.3.4

The earth wire tag from the mains/power input.

19.3.5

The plain washer (Fig 12, Item 40), followed by the anti-vibration washer (Fig 12, Item 30) and then the nut (Fig 12, Item 20). Tighten the nut.

19.3.6

The following five earth wire tags: compressor assembly, rotary valve assembly, front panel/display panel PCB, mains/power filter and solenoid valve assembly.

19.3.7

The plain washer (Fig 12, Item 40), followed by the anti-vibration washer (Fig 12, Item 30) and then the nut (Fig 12, Item 20). Tighten the nut.

Place the plain compressor mounting bracket (Fig 12, Item 30) into the pump casing. Align the three mounting holes in the bracket with the corresponding holes in the pump casing and secure with the single centre screw (Fig 12, Item 120). Note: Do not tighten the screw or install the two end screws at this stage.

19.5

Place the solenoid plate (Fig 12, Item 40) on top of the plain compressor mounting bracket (Fig 12, Item 30). Align the two mounting holes in the solenoid plate with the corresponding holes in the mounting bracket and pump casing.

19.6

Install a screw (Fig 12, Item 110) through the hole in the solenoid plate and mounting bracket nearest the centre of the pump, and into the pump casing.

19.7

Install a screw (Fig 12, Item 110), washer (Fig 12, Item 130) and solenoid valve earth wire tag (Fig 12, Item 90) through the other hole in the solenoid plate and mounting bracket nearest the side wall of the pump, and into the pump casing.

19.8

Tighten all three screws to secure the solenoid plate and mounting bracket to the pump casing.

19.9

Install the solenoid valve onto the solenoid plate (Refer to Page 22, Section 11).

19.10 Install the compressor assembly (Refer to Page 29, Section 17).

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50

10 20

60

30 70

40

10

30 20 10

Figure 15 - Replacing the Compressor Bump Stops and Filters

Table 11 - Compressor Bump Stops and Filters Parts List Item

Part Number

10

FAS173

Screw, M4 x 6 Pan Head

5

20

FAS160

Washer, M4 Plain

3

30

165310

Bump Stop

3

40

198307

Bump Stop Plate

1

50

FAS193

Screw, M3 x 5 Pan Head

4

60

165314

Compressor Filter Lid

4

70

165313

Compressor Filter

4

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20

Replacing the Compressor Filters

20.1

Disassemble the rear case (Refer to Page 15, Section 4).

20.2

For each compressor filter (4 in total): 20.2.1

Remove the screw (Fig 15, Item 50) and the compressor filter lid (Fig 15, Item 60).

20.2.2

Replace the compressor filter (Fig 15, Item 70).

20.2.3

Install the compressor filter lid (Fig 15, Item 60) and the screw (Fig 15, Item 50).

20.3

Assemble the rear case (Refer to Page 15, Section 5).

21

Removing the Compressor Bump Stops

21.1

To remove the compressor bump stop from the top of the compressor:

21.2

21.1.1

Disassemble the rear case (Refer to Page 15, Section 4).

21.1.2

Remove the screw (Fig 15, Item 10), washer (Fig 15, Item 20) and the bump stop (Fig 15, Item 30).

To remove the compressor bump stops from the bottom of the compressor: 21.2.3

Remove the compressor assembly (Refer to Page 27, Section 16).

21.2.4

Remove the screws (Fig 15, Item 10), washers (Fig 15, Item 20) and the bump stops (Fig 15, Item 30).

21.2.5

If necessary, remove the screws (Fig 15, Item 10) and the bump stop plate (Fig 15, Item 40).

22

Installing the Compressor Bump Stops

22.1

To install the compressor bump stop to the top of the compressor:

22.2

22.1.1

Install the screw (Fig 15, Item 10), washer (Fig 15, Item 20) and the bump stop (Fig 15, Item 30).

22.1.2

Assemble the rear case (Refer to Page 15, Section 5).

To install the compressor bump stops to the bottom of the compressor: 22.2.3

If necessary, install the screws (Fig 15, Item 10) and the bump stop plate (Fig 15, Item 40).

22.2.4

Install the screws (Fig 15, Item 10), washers (Fig 15, Item 20) and the bump stops (Fig 15, Item 30).

22.2.5

Install the compressor assembly (Refer to Page 29, Section 17).

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Slot

Guide

Clamp Plate

70

50

60

10

Connector shown cut away for clarity

80

30

40

20

Tube (Item 20) shown disconnected from connector to gain access to screw (Item 30)

Figure 16 - Replacing the Valve/Shuttles and Coil/E-stacks on the Compressor

Table 12 - Valve/Shuttles and Coil/E-stacks Parts List Item

Part Number

Description

Qty

10

165054

Valve/Shuttle Assembly - 63 Shore - Spares Item (UK, Euro)

1

165092

Valve/Shuttle Assembly - 70 Shore - Spares Item (USA)

20

165306

Outlet Tube

4

30

FAS176

Screw, M4 x 12 Pan Head

4

40

FAS207

Washer, Disk Spring ID4.2 OD10

4

50

FAS172

Screw, M4 x 10 Pan Head

4

60

FAS206

Washer, Belleville Serrated, Safety

4

70

165050

Coil/E-stack Assembly 5.5K turns, 120V (USA)

1

-

165058

Coil/E-stack Assembly 12K turns, 240V (UK, Euro)

1

80

165303

Grommet, Lead Through

2

90

MIS155

Tool, Magnet Spacer - Saddle Gauge Set (5 Gauges: A to E)

1

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23

Pump Repair

Replacing the Valve/Shuttle Assembly on the Compressor

The valve/shuttle assembly (Fig 16, Item 10) is replaced as a single component. It comprises two valve chests, whose bellows are connected together by a magnetic shuttle. The assembly also includes four O-rings installed in the base of the valve chests. 23.1

Disassemble the rear case (Refer to Page 15, Section 4).

23.2

Remove the lid and cables from the compressor casing (Refer to Page 25, Section 14).

23.3

Using a flat-bladed screwdriver, carefully prise each of the four outlet tubes (Fig 16, Item 20) off of its connector on the compressor casing. Note: This will enable the screws and washers to be removed from the top of the valve/shuttle assembly.

23.4

Remove the four screws (Fig 16, Item 30) and four washers (Fig 16, Item 40) from the valve/ shuttle assembly (Fig 16, Item 10).

23.5

Lift the valve/shuttle assembly out of the compressor casing. Note: Make sure the small O-rings in the base of the valve/shuttle assembly are removed with the old valve/shuttle assembly.

23.6

Make sure that the O-rings are in the base of the new valve/shuttle assembly (Fig 16, Item 10) and install the new valve/shuttle assembly into the compressor casing.

23.7

Install and tighten the four screws (Fig 16, Item 30) and four washers (Fig 16, Item 40) to secure the valve/shuttle assembly in position.

23.8

Push each of the four outlet tubes (Fig 16, Item 20) fully onto its connector on the compressor casing.

23.9

Install the lid and cables to the compressor casing (Refer to Page 25, Section 15).

23.10 Assemble the rear case (Refer to Page 15, Section 5).

24

Replacing the Coil/E-stack Assembly

The coil/E-stack assembly (Fig 16, Item 70) comprises two separate coil/E-stack sub-assemblies. Each coil/E-stack sub-assembly comprises a coil assembly, an E-stack assembly and a clamp plate. Both pairs of wires from each coil assembly are connected to a single 4-way connector. 24.1

Disassemble the rear case (Refer to Page 15, Section 4).

24.2

Remove the lid and cables from the compressor casing (Refer to Page 25, Section 14).

24.3

On the 5-way connector, loosen the two screws on the compressor side nearest the side of the case, and remove the two red and two white wires (Refer to Figures 3 and 13).

24.4

Remove the compressor wires from the cable clip (Fig 12, Item 170) on the compressor bracket (Fig 12, Item 20).

24.5

Cut and remove any cable ties (Table 9, Item 190) which secure the four compressor wires to other wires.

24.6

Remove the two screws (Fig 16, Item 50) and two washers (Fig 16, Item 60) from both clamp plates on the coil/E-stack assembly (Fig 16, Item 70).

24.7

Lift both halves of the coil/E-stack assembly out of the compressor casing.

24.8

Install both halves of the new coil/E-stack assembly (Fig 16, Item 70) into the compressor casing, locating both slots on each clamp plate over the raised guides in the compressor casing (Refer to Figure 16).

24.9

Loosely install two screws (Fig 16, Item 50) and two washers (Fig 16, Item 60) to each clamp plate on the coil/E-stack assembly.

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24.10 Move both coil/E-stack sub-assemblies (Fig 16, Item 70) away from the magnetic shuttle on the valve/shuttle assembly (Fig 16, Item 10). 24.11 Using the magnet spacer tool (Table 12, Item 90), carefully place the appropriate saddle gauge over the magnetic shuttle on the valve/shuttle assembly, and in between the two coil/E-stack sub-assemblies. Note: The magnet spacer tool comprises 5 saddle gauges. The gauges provide adjustment of the compressor air flow in steps of 0.5 litres/minute with gauge A giving maximum air flow and gauge E giving minimum air flow. 24.12 Move both coil/E-stack sub-assemblies such that they rest against the setting tool. Note: Make sure the coil/E-stack sub-assemblies are square to the tool, and are centrally disposed in the compressor Refer to Figure 16). 24.13 Without moving the coil/E-stack sub-assemblies, tighten the four screws (Fig 16, Item 50) on the clamp plate. 24.14 Remove the magnet spacer tool (Table 12, Item 90). 24.15 Connect the red and white wires from the compressor to the two terminals on the 5-way connector (Refer to Figures 3 and 13). Tighten the screws to secure the wires. Note: Make sure the red and white wires from each side of the compressor are separated, and connected to different terminals on the 5-way connector, otherwise the compressor will not operate correctly. 24.16 Push the four compressor wires into the cable clip (Fig 12, Item 170) on the compressor bracket (Fig 12, Item 20). 24.17 Fit cable ties (Table 9, Item 190) to secure the four compressor wires to other wires. 24.18 Install the lid and cables to the compressor casing (Refer to Page 25, Section 15). 24.19 Assemble the rear case (Refer to Page 15, Section 5).

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25

Replacing the Battery on the Display Panel PCB

25.1

Disassemble the rear case (Refer to Page 15, Section 4).

25.2

Cut and remove the cable tie (Fig 17, Item 20) which secures the battery to the display panel PCB (Fig 17, Item 10).

25.3

Disconnect the 2-pin battery cable connector from the display panel PCB.

25.4

Remove the battery.

25.5

Position the new battery (Fig 17, Item 10) on the display panel PCB.

25.6

Connect the 2-pin battery cable connector onto the connector on the display panel PCB.

25.7

Secure the battery to the display panel PCB with a cable tie (Fig 17, Item 20).

25.8

Assemble the rear case (Refer to Page 15, Section 5).

2-pin Battery Connector

20

10

Display Panel PCB

Figure 17 - Replacing the Battery

Table 13 - Battery Parts List Item

Part Number

10

151457

Rechargeable Battery

1

20

BP196

Cable Tie

1

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20 40

20 70 30 Fuseholder 10 60 50

Figure 18 - Replacing the Display Panel PCB Table 14 - Display Panel PCB Parts List Item

Part Number

10

631302

Display Panel PCB, 240V (UK, Euro)

631322

Display Panel PCB, 120V (USA)

20

FAS098

Nut, M3 Full

7

30

FAS091

Washer, M3 Nylon

6

40

FAS002

Washer, 6BA Anti-vibration

1

50

151352

Spacer, 8.5 mm long x 3.2 x 6 mm

7

60

151402

Fuse, PCB 100mA

1

70

151103

Earth Wire Assembly, Display Panel PCB

1

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26

Pump Repair

Removing the Display Panel PCB

CAUTION: Electrostatic discharge can seriously damage the display panel PCB. Prior to removing or handling, adequate earthing precautions must be taken. 26.1

Disassemble the rear case (Refer to Page 15, Section 4).

26.2

Disconnect the following cable connectors from the display panel PCB (Fig 18, Item 10): •

High Pressure Switch (white) - Fig 3, PCB Con 4.

•

Rotary Valve Assembly - Microswitch (Cycle) (grey) - Fig 3, PCB Con 5.

•

Pressure Control Assembly (LP) (orange) - Fig 3, PCB Con 6.

•

Sounder (black) - Fig 3, PCB Con 8.

•

Rotary Valve Assembly - Motor (red) - Fig 3, PCB Con 3.

•

Solenoid Valve Assembly (black) - Fig 3, PCB Con 10.

•

Compressor Power Cables (brown/blue) - Fig 3, PCB Con 9.

•

Display Panel PCB (Fig 3, PCB Con 2) to Mains/Power Switch (Fig 3, Switch Pins 3&6) (brown/blue).

•

Display Panel PCB (Fig 3, PCB Con 1) to Mains/Power Switch (Fig 3, Switch Pins 2&5) (brown/blue).

26.3

Remove the nuts and washers (Fig 18, Items 20, 30 and 40) from the display panel PCB.

26.4

Remove the display panel PCB earth wire tag (Fig 18, Item 70).

26.5

Remove the display panel PCB (Fig 18, Item 10) and the spacers (Fig 18, Item 50).

27

Installing the Display Panel PCB

CAUTION: Electrostatic discharge can seriously damage the display panel PCB. Prior to installing or handling, adequate earthing precautions must be taken. 27.1

Install the spacers (Fig 18, Item 50) over the studs on the front panel.

27.2

Install the display panel PCB (Fig 18, Item 10) over the studs.

27.3

If not fitted, insert a fuse (Fig 18, Item 60) into the fuseholder on the display panel PCB.

27.4

Install the display panel PCB earth wire tag (Fig 18, Item 70) over the correct stud (Refer to Figure 18), and secure with an anti-vibration washer (Fig 18, Item 40) and nut (Fig 18, Item 20).

27.5

Install the nuts and nylon washers (Fig 18, Items 20 and 30) on the remaining studs to secure the display panel PCB.

27.6

Refer to Figure 3 and connect the following cable connectors onto the display panel PCB: •

High Pressure Switch (white) - Fig 3, PCB Con 4.

•

Rotary Valve Assembly - Microswitch (Cycle) (grey) - Fig 3, PCB Con 5.

•

Pressure Control Assembly (LP) (orange) - Fig 3, PCB Con 6.

•

Sounder (black) - Fig 3, PCB Con 8.

•

Rotary Valve Assembly - Motor (red) - Fig 3, PCB Con 3.

•

Solenoid Valve Assembly (black) - Fig 3, PCB Con 10.

•

Compressor Power Cables (brown/blue) - Fig 3, PCB Con 9.

•

Display Panel PCB (Fig 3, PCB Con 2) to Mains/Power Switch (Fig 3, Switch Pins 3&6) (brown/blue).

•

Display Panel PCB (Fig 3, PCB Con 1) to Mains/Power Switch (Fig 3, Switch Pins 2&5) (brown/blue).

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27.7

Nimbus Paediatric System Service Manual

Assemble the rear case (Refer to Page 15, Section 5).

Exaggerated view showing orientation of Fixing Caps (Item 30) on Front Panel (Item 10)

20 30 See detail

40

10

Figure 19 - Replacing the Front Panel

Table 15 - Front Panel Parts List Item

Part Number

10

631324

Nimbus Paediatric Front Panel Assembly (All Variants)

1

20

FAS145

Screw, 3 dia x 8 Pan Head

10

30

151309

Front Panel Fixing Cap

10

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28

Removing the Front Panel

28.1

Disassemble the rear case (Refer to Page 15, Section 4).

28.2

Remove the display panel PCB (Refer to Page 39, Section 26).

28.3

Remove the pressure control assembly (Refer to Page 45, Section 33).

28.4

Remove the screws (Fig 19, Item 20) and fixing caps (Fig 19, Item 30), and then remove the front panel assembly (Fig 19, Item 10).

28.5

If there is insufficient clearance to remove the screws (Fig 19, Item 20), then carry out the following procedure first: 28.5.1

Remove the solenoid valve from the solenoid plate (Refer to Page 21, Section 10).

28.5.2

Remove the middle screw (Fig 12, Item 120) from each compressor bracket (Fig 12, Items 20 and 30).

28.5.3

Loosen the remaining two screws (Fig 12, Items 110 and 120) on each compressor bracket.

28.5.4

Slide the compressor assembly, compressor brackets and solenoid plate away from the front panel. Note: The compressor assembly will only move by 3-4mm, but that will give sufficient clearance to remove the front panel assembly.

28.5.5

Now remove the screws (Fig 19, Item 20) and fixing caps (Fig 19, Item 30), and then remove the front panel assembly (Fig 19, Item 10).

29

Installing the Front Panel

29.1

If the compressor assembly was moved during the removal procedure, make sure that the compressor assembly is pushed away from the top edge of the front case.

29.2

Position the front panel assembly (Fig 19, Item 10) on the spigots on the front case.

29.3

Install the fixing caps (Fig 19, Item 30) and screws (Fig 19, Item 20), and tighten. Note: Check the orientation of the fixing caps before the screws are tightened. The thinner edge of each fixing cap must face towards the top outer edge of the front case (Refer to Figure 19).

29.4

Install the pressure control assembly (Refer to Page 45, Section 34).

29.5

Install the display panel PCB (Refer to Page 39, Section 27).

29.6

If the compressor assembly was moved during the removal procedure, carry out the following procedure:

29.7

29.6.1

Slide the compressor assembly, compressor brackets and solenoid plate towards the front panel.

29.6.2

Install the middle screw (Fig 12, Item 120) to each compressor bracket (Fig 12, Items 20 and 30).

29.6.3

Tighten all three screws (Fig 12, Items 110 and 120) on each compressor bracket to secure them.

29.6.4

Install the solenoid valve onto the solenoid plate (Refer to Page 22, Section 11).

Assemble the rear case (Refer to Page 15, Section 5).

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20

10

Fuseholder

Figure 20 - Replacing the Sounder and PCB Fuse

Table 16 - Sounder and PCB Fuse Parts List Item

Part Number

10

151071

Sounder Assembly

1

20

151402

Fuse, PCB T100mAL 250 V

1

30

BP196

Cable Tie

1

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30

Pump Repair

Removing the Sounder Assembly

Note: It will be easier to remove the sounder if the pneumatic side panel assembly is lifted out of the front case, and moved out of the way of the sounder (Refer to Figure 23). 30.1

Disassemble the rear case (Refer to Page 15, Section 4).

30.2

Lift the pneumatic side panel assembly out of the front case (Refer to Figure 5), and move it out of the way of the sounder (Refer to Figure 23).

30.3

Cut and remove the cable tie (Table 16, Item 30) around the following cables, by the display panel PCB: •

Rotary valve assembly - motor cable (red).

•

Rotary valve assembly - microswitch cable (grey).

•

High pressure switch cable (white)

•

Sounder cable (black).

30.4

Disconnect the sounder cable connector from the display panel PCB (Fig 3, PCB Con 8).

30.5

Remove the sounder (Fig 20, Item 10) from the inside of the front case by flexing the case.

31

Installing the Sounder Assembly

31.1

Position the new sounder (Fig 20, Item 10) on the inside of the front case, so that the sounder cable points towards the display panel PCB. Gently push the sounder onto the front case to stick it down.

31.2

Connect the sounder cable connector onto the display panel PCB (Fig 3, PCB Con 8).

31.3

Fit a cable tie (Table 16, Item 30) around the following cables, by the display panel PCB: •

Rotary valve assembly - motor cable (red).

•

Rotary valve assembly - microswitch cable (grey).

•

High pressure switch cable (white)

•

Sounder cable (black).

31.4

Turn the pneumatic side panel assembly onto its side, and install into the front case (Refer to Figure 5).

31.5

Assemble the rear case (Refer to Page 15, Section 5).

32

Replacing the Fuse on the Display Panel PCB

32.1

Disassemble the rear case (Refer to Page 15, Section 4).

32.2

Remove the fuse (Fig 20, Item 20) from the fuseholder on the display panel PCB.

32.3

Carefully insert the new fuse (Fig 20, Item 20) into the fuseholder on the display panel PCB

32.4

Assemble the rear case (Refer to Page 15, Section 5).

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Pressure Adjusting Screw

20 30 D

E F Pressure Control Flange 10 40

Pressure Control Arbor

Figure 21 - Replacing the Pressure Control Assembly

Table 17 - Pressure Control Assembly Parts List Item

Part Number

10

198080

Pressure Control Assembly

1

20

FAS098

Nut, M3 Full

2

30

FAS002

Washer, 6BA Anti-vibration

2

40

500357

Pin, Spirol

1

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33

Removing the Pressure Control Assembly

33.1

Disassemble the rear case (Refer to Page 15, Section 4).

33.2

Disconnect the pressure control assembly cable connector from the display panel PCB (Fig 3, PCB Con 6).

33.3

Disconnect the following tubes at the pressure control assembly end (Refer to Figure 21): •

The tube from the solenoid valve (outlet “D”).

•

The two tubes from the rotary valve assembly (outlets “E” and “F”).

33.4

Remove the nuts (Fig 21, Item 20) and washers (Fig 21, Item 30) and the pressure control assembly (Fig 21, Item 10).

34

Installing the Pressure Control Assembly

34.1

Check that the spirol pin (Fig 21, Item 40) is installed between the pressure control arbor and pressure control flange. This will prevent the pressure control arbor from turning, and changing the pressure.

34.2

Install the pressure control assembly (Fig 21, Item 10) onto the studs on the front panel.

34.3

Secure the pressure control assembly in position with nuts (Fig 21, Item 20) and washers (Fig 21, Item 30).

34.4

Connect the following tubes to the pressure control assembly (Refer to Figure 21): •

The tube from the solenoid valve (outlet “D”).

•

The two tubes from the rotary valve assembly (outlets “E” and “F”).

34.5

Connect the pressure control assembly cable connector onto the display panel PCB (Fig 3, PCB Con 6).

34.6

Assemble the rear case (Refer to Page 15, Section 5).

35

Adjusting the Pressure Control

35.1

Disassemble the rear case (Refer to Page 15, Section 4).

35.2

Check that the spirol pin (Fig 21, Item 40) is installed between the pressure control arbor and pressure control flange. This will prevent the pressure control arbor from turning, and changing the pressure.

35.3

To increase the pressure, turn the pressure adjusting screw clockwise (Refer to Figure 21).

35.4

To decrease the pressure, turn the pressure adjusting screw counter-clockwise.

35.5

Assemble the rear case (Refer to Page 15, Section 5).

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Tube to Compressor 30

20

40

10

Figure 22 - Replacing the High Pressure Switch

Table 18 - High Pressure Switch Parts List Item

Part Number

10

198394

High Pressure Switch

1

20

FAS182

Screw, 3mm x 20mm Pan Head

2

30

151091

Tube Assembly, High Pressure Switch

1

40

151068

Cable Assembly, High Pressure Switch

1

50

BP196

Cable Tie

1

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36

Removing the High Pressure Switch

36.1

Disassemble the rear case (Refer to Page 15, Section 4).

36.2

Disconnect the tube assembly (Fig 22, Item 30) from the top of the high pressure switch (Fig 22, Item 10).

36.3

Cut and remove the cable tie (Table 18, Item 60) around the following cables, by the display panel PCB: •

Rotary valve assembly - motor cable (red)

•

Rotary valve assembly - microswitch (cycle) cable (grey)

•

High pressure switch cable (white)

•

Sounder cable (black).

36.4

Disconnect the high pressure switch cable assembly connector (Fig 22, Item 40) from the display panel PCB (Fig 3, PCB Con 4).

36.5

Remove the screws (Fig 22, Item 20) and the high pressure switch (Fig 22, Item 10).

36.6

Disconnect the cable assembly (Fig 22, Item 40) from the side of the high pressure switch.

37

Installing the High Pressure Switch

37.1

Connect the two wires of the cable assembly (Fig 22, Item 40) onto the side of the high pressure switch (Fig 22, Item 10).

37.2

Position the high pressure switch (Fig 22, Item 10) on the spigots in the front case.

37.3

Install the screws (Fig 22, Item 20), and tighten.

37.4

Connect the high pressure switch cable assembly connector (Fig 22, Item 40) onto the display panel PCB (Fig 3, PCB Con 4).

37.5

Fit a cable tie (Table 18, Item 50) around the following cables, by the display panel PCB: •

Rotary valve assembly - motor cable (red)

•

Rotary valve assembly - microswitch (cycle) cable (grey)

•

High pressure switch cable (white)

•

Sounder cable (black).

37.6

Connect the tube assembly (Fig 22, Item 30) to the top of the high pressure switch.

37.7

Assemble the rear case (Refer to Page 15, Section 5).

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30

20 30

40

C

B A, B, C - Tubes to 5-way Manifold A 140

10

Microswitch Cable

G E 50

110 D

90

F

120

Motor Cable 70

100

120

C

B A

70

Pneumatic Side Panel Assembly 80

130 A, B, C D E, F G

-

Tubes to Rotary Valve Assembly Tube to Solenoid Valve Tubes to Pressure Control Assembly Tube to T-Piece

Figure 23 - Replacing the Rotary Valve Assembly

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38

Removing the Rotary Valve Assembly

38.1

Disassemble the rear case (Refer to Page 15, Section 4).

38.2

Cut and remove the cable tie (Table 19, Item 60) around the following cables, by the display panel PCB:

38.3

38.4

•

Rotary valve assembly - motor cable (red).

•

Rotary valve assembly - microswitch (cycle) cable (grey).

•

High pressure switch cable (white).

•

Sounder cable (black).

Disconnect the following cable connectors from the display panel PCB: •

To the rotary valve assembly - motor cable (red), (Fig 3, PCB Con 3).

•

To the rotary valve assembly - microswitch (cycle) cable (grey), (Fig 3, PCB Con 5).

Lift the pneumatic side panel assembly out of the front case (Refer to Figure 5), and turn it so that the rotary valve assembly and tubes are uppermost (Refer to Figure 23). Note: It will be easier to move and turn the pneumatic side panel assembly if the following operations are carried out first: 38.4.1

Disconnect the T-piece from the tube to the rotary valve assembly (Fig 23, Item 80).

38.4.2

Disconnect the tube from the 5-way manifold to the solenoid valve (Fig 23, Item 110).

38.4.3

Using a small flat-bladed screwdriver, carefully prise the two tubes off of the side of the pressure control assembly at outlets “E” and “F” (Refer to Figure 21).

Table 19 - Rotary Valve Assembly Parts List Item

Part Number

10

151056

Rotary Valve Assembly (UK, Euro)

151110

Rotary Valve Assembly (USA)

20

FAS222

Screw, 3mm dia x 25mm Pan Head

2

30

FAS002

Washer, 6BA Anti-vibration

2

40

FAS087

Washer, M3 Plain

1

50

504323

Spacer, M3 x 17mm

2

60

BP196

Cable Tie

1

70

198145

T-Tube, Short (5-way Manifold - Rotary Valve Assy - Pressure Control Assy)

2

80

198146

T-Tube, Long (T-Piece - 5-way Manifold - Rotary Valve Assy)

1

90

NMB376

Tube, 50mm long (to Pressure Control Assembly)

1

100

NMB374

Tube, 70mm long (to Pressure Control Assembly)

1

110

198147

Tube, 150mm long (5-way Manifold - Solenoid Valve)

1

120

NMB370

Elbow Connector, Barbed

2

130

NMB169

Mossplug, 6mm ID

1

140

198082

Earth Wire Assembly, Rotary Valve Assembly

1

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38.5

Using a small flat-bladed screwdriver, carefully prise the three tubes (Fig 23, Items 70 and 80) off of the rotary valve assembly (Fig 23, Item 10) at outlets “A”, “B” and “C”.

38.6

Remove the two screws (Fig 23, Item 20), washers (Fig 23, Items 30 and 40) and rotary valve earth wire tag (Fig 23, Item 140) from the rotary valve assembly (Fig 23, Item 10).

38.7

Remove the rotary valve assembly (Fig 23, Item 10) and spacers (Fig 23, Item 50) from the pneumatic side panel assembly.

39

Installing the Rotary Valve Assembly

39.1

Install the two screws (Fig 23, Item 20) through the washers (Fig 23, Items 30 and 40), rotary valve earth wire tag (Fig 23, Item 140), rotary valve assembly (Fig 23, Item 10) and spacers (Fig 23, Item 50) into the pneumatic side panel assembly. Tighten the screws to secure. Note: The screw with the earth wire tag has the anti-vibration washer (Fig 23, Item 30) on top of the plain washer (Fig 23, Item 40). The other screw has only a plain washer. Note: Make sure the earth wire tag is on the bottom of the rotary valve assembly when the pneumatic side panel assembly is installed in the front case (Refer to Figure 23).

39.2

Route the motor cable (red) underneath the rotary valve assembly between the spacers.

39.3

Connect the three tubes (Fig 23, Items 70 and 80) on the pneumatic side panel assembly to connections “A”, “B” and “C” on the rotary valve assembly (Fig 23, Item 10).

39.4

Connect the following 2-way cable connectors onto the display panel PCB:

39.5

39.6

39.7

•

From the rotary valve assembly - motor cable (red), (Fig 3, PCB Con 3).

•

From the rotary valve assembly - microswitch (cycle) cable (grey), (Fig 3, PCB Con 5).

Fit a cable tie (Table 19, Item 60) around the following cables, by the display panel PCB: •

Rotary valve assembly - motor cable (red).

•

Rotary valve assembly - microswitch (cycle) cable (grey).

•

High pressure switch cable (white).

•

Sounder cable (black).

Turn the pneumatic side panel assembly onto its side, and install into the front case (Refer to Figure 5). If removed, re-install tubes as follows: 39.6.1

Connect the T-piece onto the tube to the rotary valve assembly (Fig 23, Item 80).

39.6.2

Connect the tube from the 5-way manifold onto the solenoid valve (Fig 23, Item 110).

39.6.3

Connect the two tubes onto the side of the pressure control assembly at outlets “E” and “F” (Refer to Figure 21).

Assemble the rear case (Refer to Page 15, Section 5).

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Pump Repair

Replacing the Manifold Gasket

Note: The manifold gasket can be replaced without removing the rear case. 40.1

Remove the four screws (Fig 24, Item 40) which secure the manifold components to the pneumatic side panel assembly.

40.2

Remove the manifold connector (Fig 24, Item 10) and the manifold gasket (Fig 24, Item 20). Note: The 5-way manifold (Fig 24, Item 30) will remain connected to the tubes on the pneumatic side panel assembly.

40.3

Install the new manifold gasket (Fig 24, Item 20) into the back of the manifold connector (Fig 24, Item 10).

40.4

Install the assembled manifold connector and manifold gasket onto the 5-way manifold (Fig 24, Item 30) on the outside of the pneumatic side panel assembly.

40.5

Install the screws (Fig 24, Item 40) through the assembled manifold connector, manifold gasket and 5-way manifold, and into the pneumatic side panel. Carefully tighten the screws. Note: Do not over-tighten the screws, or you may strip the threads in the pneumatic side panel.

40.6

If the screws will not tighten and the threads in the pneumatic side panel have been stripped, then the carry out one of the following procedures to repair the pump: •

Repair or replace the plastic panel on the pneumatic side panel assembly (Refer to Page 53, Section 41).

•

Remove the complete pneumatic side panel assembly (Refer to Page 55, Section 42) and replace with a complete new assembly (Refer to Page 56, Section 43). 30

20 10

40 Figure 24 - Replacing the Manifold Gasket

Table 20 - Manifold Gasket Parts List Item

Part Number

10

151471

Manifold Connector, Blue - Braced

1

20

151304

Manifold Gasket, 5-way

1

30

151480

Barbed Manifold, 5-way

1

40

FAS233

Screw, 3mm dia x 16mm Csk Head

4

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Rear view of Pneumatic Side Panel showing: 1. Orientation of Manifold (Item 40). 2. Designation of Tube Connections (“A” - “E”).

A

C

B D

E

10

40

90 30

80 70

60 50

20 Figure 25 - Repair of the Pneumatic Side Panel

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41

Repairing the Pneumatic Side Panel Assembly

41.1

Disassemble the Pneumatic Side Panel Assembly as follows: 41.1.1

Disassemble the rear case (Refer to Page 15, Section 4).

41.1.2

Lift the pneumatic side panel assembly out of the front case (Refer to Figure 5).

41.1.3

Remove the rotary valve assembly (Refer to Page 49, Section 38).

41.1.4

Remove the four screws (Fig 25, Item 50) which secure the manifold components to the pneumatic side panel (Fig 25, Item 10).

41.1.5

Remove the manifold connector (Fig 25, Item 20) and the manifold gasket (Fig 25, Item 30). Note: The 5-way manifold (Fig 25, Item 40) will remain connected to the tubes on the pneumatic side panel assembly.

41.2

41.3

41.1.6

Disconnect the following from the back of the 5-way manifold (Refer to Figure 25):

41.1.7

The four tubes at outlets “A”, “C”, “D” and “E”.

41.1.8

The mossplug (Table 21, Item 100) at outlet “B”.

41.1.9

Remove the 5-way manifold (Fig 25, Item 40) from the pneumatic side panel (Fig 25, Item 10).

To repair the pneumatic side panel assembly, carry out one of the following procedures: •

Drill out the existing mounting holes in the pneumatic side panel (Fig 25, Item 10), and reassemble using screws and nuts (Refer to Para 41.3).

•

Replace just the plastic panel (Fig 25, Item 10) on the pneumatic side panel assembly (Refer to Para 41.4).

Carry out the following procedure to repair the pneumatic side panel assembly by drilling out the existing mounting holes: 41.3.10 Using a 3.2mm drill, carefully drill through the bosses on the existing pneumatic side panel (Fig 25, Item 10) in the positions of the four screw holes. Clean the holes, and ensure no swarf remains.

Table 21 - Manifold Assembly Parts List Item

Part Number

10

198302

Pneumatic Plastic Side Panel

1

20

151471

Manifold Connector, Blue - Braced

1

30

151304

Manifold Gasket, 5-way

1

40

151480

Barbed Manifold, 5-way

1

50

FAS233

Screw, 3mm dia x 16mm Csk Head

4

60

FAS041

Screw, M3 x 25mm Csk Head

4

70

FAS098

Nut, M3 Full

4

80

VIB004

Grommet

4

90

197312

Nut, M3 Domed Plastic

4

100

NMB169

Mossplug, 6mm ID

1

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41.3.11 Install the manifold gasket (Fig 25, Item 30) into the back of the manifold connector (Fig 25, Item 20). 41.3.12 Install the 5-way manifold (Fig 25, Item 40) into the back of the assembled manifold gasket and manifold connector. 41.3.13 Position the assembled manifold connector, manifold gasket and 5-way manifold onto the outside of the pneumatic side panel (Fig 25, Item 10). 41.3.14 Install the new screws (Fig 25, Item 60) through the assembled manifold connector, manifold gasket and 5-way manifold, and through the holes in the pneumatic side panel (Fig 25, Item 10). 41.3.15 Install the nuts (Fig 25, Item 70) onto the screws (Fig 25, Item 60) and tighten. 41.3.16 Install the grommets (Fig 25, Item 80) and the domed nuts (Fig 25, Item 90) onto the screws (Fig 25, Item 60) and tighten. 41.3.17 Reassemble the pneumatic side panel assembly (Refer to Para 41.5). 41.4

Carry out the following procedure to repair the pneumatic side panel assembly by replacing the plastic panel: 41.4.18 Discard the existing pneumatic side panel (Fig 25, Item 10). 41.4.19 Install the manifold gasket (Fig 25, Item 30) into the back of the manifold connector (Fig 25, Item 20). 41.4.20 Install the 5-way manifold (Fig 25, Item 40) into the back of the assembled manifold gasket and manifold connector. 41.4.21 Position the assembled manifold connector, manifold gasket and 5-way manifold onto the outside of the new pneumatic side panel (Fig 25, Item 10). 41.4.22 Install the screws (Fig 25, Item 50) through the assembled manifold connector, manifold gasket and 5-way manifold into the holes in the new pneumatic side panel (Fig 25, Item 10). Carefully tighten the screws. Note: Do not over-tighten the screws, or you may strip the threads in the pneumatic side panel. 41.4.23 Reassemble the pneumatic side panel assembly (Refer to Para 41.5).

41.5

Reassemble the Pneumatic Side Panel Assembly as follows 41.5.24 Install the rotary valve assembly to the pneumatic side panel (Refer to Page 50, Section 39). 41.5.25 Connect the following four tubes onto the back of the 5-way manifold (Refer to Figures 7, 21, 23 and 25): •

Outlet “A” - tube to the solenoid valve assembly.

•

Outlet “C” - tube to the rotary valve assembly and T-piece.

•

Outlet “D” - tube to the rotary valve assembly and pressure control assembly.

•

Outlet “E” - tube to the rotary valve assembly and pressure control assembly.

41.5.26 Install the mossplug (Table 21, Item 100) onto outlet “B” on the back of the 5-way manifold (Refer to Figure 25). 41.5.27 Turn the pneumatic side panel assembly onto its side, and install into the front case (Refer to Figure 5). 41.5.28 Assemble the rear case (Refer to Page 15, Section 5).

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42

Removing the Pneumatic Side Panel Assembly

42.1

Disassemble the rear case (Refer to Page 15, Section 4).

42.2

Lift the pneumatic side panel assembly out of the front case (Refer to Figure 5).

42.3

Disconnect the following at the back of the pneumatic side panel assembly (Refer to Figure 26): •

The T-piece from the T-tube to the rotary valve assembly and manifold.

•

The blue tube from the manifold to the solenoid valve assembly, at the manifold.

•

The two white tubes to the pressure control assembly (outlets “E” and “F”) from the T-tubes to the rotary valve assembly and manifold.

Note: The elbow connectors are part of the pressure control assembly tubes. The disassembled pneumatic side panel assembly (Fig 26, Item 10) should then look like that shown in Figure 26. 42.4

Remove the top nut (Fig 12, Item 20) and washers (Fig 12, Items 30 and 40) from the earth stud on the compressor mounting bracket (Fig 12, Item 20), and remove only the earth wire tag to the rotary valve assembly.

42.5

Pull the two self adhesive cable ties off the side of the pump casing, adjacent to the compressor assembly.

To Pressure Control Assembly (“E”) To T-Piece Self-adhesive Cable Ties

To Pressure Control Assembly (“F”)

Earth Wire To Solenoid Valve Assembly

10 Mossplug

Figure 26 - Pneumatic Side Panel Assembly

Table 22 - Pneumatic Side Panel Assembly Parts List Item

Part Number

10

631092

Pneumatic Side Panel Assembly (UK, Euro)

631093

Pneumatic Side Panel Assembly (USA)

42.6

Description

Qty 1

Cut and remove the cable tie (Table 19, Item 60) around the following cables, by the display panel PCB:

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42.7

Nimbus Paediatric System Service Manual

•

Rotary valve assembly - motor cable (red).

•

Rotary valve assembly - microswitch (cycle) cable (grey)

•

High pressure switch cable (white)

•

Sounder cable (black).

Disconnect the following cable connectors from the display panel PCB: •

To the rotary valve assembly - motor cable (red), (Fig 3, PCB Con 3).

•

To the rotary valve assembly - microswitch (cycle) cable (grey), (Fig 3, PCB Con 5).

42.8

The pneumatic side panel assembly (Table 22, Item 10) is now disconnected from the pump.

43

Installing the Pneumatic Side Panel Assembly

43.1

Position the pneumatic side panel assembly (Table 22, Item 10) loosely into the end of the front case of the pump, with the manifold nearest the pressure control assembly (Refer to Figure 5).

43.2

Connect the following at the back of the pneumatic side panel assembly (Refer to Figure 26):

43.3

•

The T-piece onto the T-tube from the rotary valve assembly and manifold.

•

The blue tube from the solenoid valve assembly onto the end outlet on the manifold.

•

The elbow connectors on the two white tubes from the pressure control assembly (Figure 21, Outlets “E” and “F”) onto the two T-tubes to the rotary valve assembly and manifold.

Connect the following 2-way cable connectors onto the display panel PCB: •

From the rotary valve assembly - motor cable (red), (Fig 3, PCB Con 3).

•

From the rotary valve assembly - microswitch (cycle) cable (grey), (Fig 3, PCB Con 5).

Note: Route the motor cable (red) underneath the rotary valve assembly between the spacers. 43.4

Fit a cable tie (Table 19, Item 60) around the following cables, by the display panel PCB: •

Rotary valve assembly - motor cable (red).

•

Rotary valve assembly - microswitch (cycle) cable (grey)

•

High pressure switch cable (white)

•

Sounder cable (black).

43.5

Turn the pneumatic side panel assembly onto its side, and install into the front case (Refer to Figure 5).

43.6

Route the earth wire tag from the rotary valve assembly, around the compressor and onto the earth stud on the compressor mounting bracket (Fig 12, Item 20). Install the plain washer (Fig 12, Item 40) onto the earth stud, followed by the anti-vibration washer (Fig 12, Item 30) and then the nut (Fig 12, Item 20). Tighten the nut. Note: Make sure there are six earth wire tags on the earth stud - mains/power input, mains/ power filter, front panel/display panel PCB, compressor assembly, solenoid valve assembly and rotary valve assembly.

43.7

Peel off the backing strip from each self adhesive cable tie on the earth wire, and stick the cable ties to the base of the pump casing, adjacent to the compressor assembly.

43.8

Make sure that all the tubes and electrical connections have been reconnected correctly.

43.9

Assemble the rear case (Refer to Page 15, Section 5).

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Pump Repair

Removing the Mains/Power Switch

WARNING: BEFORE REPLACING THE MAINS/POWER SWITCH, MAKE SURE THE PUMP UNIT HAS BEEN ISOLATED FROM THE MAINS/POWER SUPPLY BY REMOVING THE MAINS/POWER PLUG FROM THE WALL SOCKET. 44.1

Disassemble the rear case (Refer to Page 15, Section 4).

44.2

Lift the mains/power side panel assembly out of the front case (Refer to Figure 5).

44.3

Pull the six wire connectors off the back of the mains/power switch (Fig 27, Item 10).

44.4

Compress the spring retaining clips on the top and bottom of the mains/power switch on the inside of the mains/power side panel, and push the switch out of the side panel.

45

Installing the Mains/Power Switch

45.1

Install the new mains/power switch (Fig 27, Item 10) from the outside face of the mains/power side panel, as shown in Figure 27. Push the switch until it clips into the side panel. Note: Make sure that the orientation of the switch is correct. The “I” (“On”) should be at the top.

45.2

Refer to Figures 3 and 27, and push the six brown and blue wire connectors onto the correct terminals on the back of the mains/power switch, as follows: •

Mains/Power Switch (Fig 3, Switch Pins 2&5) to Display Panel PCB (Fig 3, PCB Con 1).

•

Mains/Power Switch (Fig 3, Switch Pins 3&6) to Display Panel PCB (Fig 3, PCB Con 2).

•

Mains/Power Switch (Fig 3, Switch Pins 1&4) to the Mains/Power Filter.

45.3

Install the mains/power side panel assembly into the front case (Refer to Figure 5).

45.4

Assemble the rear case (Refer to Page 15, Section 5).

10 10

Figure 27 - Replacing the Mains/Power Switch

Table 23 - Mains/Power Switch Parts List Item

Part Number

10

198396

Mains/Power Switch, 240V, “0-I” (USA)

198397

Mains/Power Switch, 240V, “0-I” (UK, Euro)

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40

10

30 Looped Earth Wire

Wire Colours (Item 10): = Brown (Black) Live Neutral = Blue (White) Earth = Green/Yellow (Green)

50 20

Note: When the three wires of the cable (Item 10) are inserted into the 5-way connector (Item 20), the Live and Neutral wires are to be as short as possible, but the Earth wire must be looped to make it the longest.

Figure 28 - Replacing the Mains/Power Cable

Table 24 - Mains/Power Cable Parts List Item

Part Number

10

198328

Mains/Power Cable, 4m (UK)

504324

Mains/Power Cable, 4m (Euro)

BP300

Mains/Power Cable, 4m (USA)

20

151406

5-way Connector and Clamp

1

30

198312

Cable Converter

1

40

198311

Grommet

1

50

BP196

Cable Tie

1

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46

Pump Repair

Removing the Mains/Power Cable

WARNING: BEFORE REMOVING THE MAINS/POWER CABLE, MAKE SURE THE PUMP UNIT HAS BEEN ISOLATED FROM THE MAINS/POWER SUPPLY BY REMOVING THE MAINS/POWER PLUG FROM THE WALL SOCKET. 46.1

Disassemble the rear case (Refer to Page 15, Section 4).

46.2

Lift the mains/power side panel assembly out of the front case (Refer to Figure 5).

46.3

Remove the two screws, and fold back the cable clamp on the integral 5-way connector and clamp (Fig 28, Item 20).

46.4

On the 5-way connector (Fig 28, Item 20), loosen the 3 screws on the side of the connector nearest the side panel, and remove the live, neutral and earth wires of the mains/power cable (Fig 28, Item 10).

46.5

Pull the end of the mains/power cable (Fig 28, Item 10) out through the side panel, the cable converter (Fig 28, Item 30) and the grommet (Fig 28, Item 40).

47

Installing the Mains/Power Cable

WARNING: FOR SAFETY, IF THE MAINS/POWER CABLE IS ACCIDENTALLY PULLED OUT, THE EARTH WIRE MUST BE THE LAST WIRE TO BE DISCONNECTED FROM THE PUMP. MAKE SURE THE LIVE AND NEUTRAL WIRES ARE AS SHORT AS POSSIBLE. MAKE SURE THE EARTH WIRE IS LONGER THAN THE LIVE AND NEUTRAL WIRES AND LONG ENOUGH TO MAKE A LOOP IN IT (REFER TO FIGURE 28). 47.1

47.2

Before installing the new mains/power cable (Fig 28, Item 10), check that the three wires are cut to the correct length, as follows: •

The Live (Brown or Black) and Neutral (Blue or White) wires should be as short as possible.

•

The Earth wire (Green/Yellow or Green) must be longer than the other two wires, and long enough to make a loop in it (Refer to Figure 28).

Pass the end of the new mains/power cable through the grommet (Fig 28, Item 40), the cable converter (Fig 28, Item 30) and the side panel. Note: Pull the outside of the cable. Do not pull on individual wires in the mains/power cable, or else the wires will become distorted and lengthened.

47.3

Connect the live, neutral and earth wires to the terminals on the 5-way connector (Fig 28, Item 20). Tighten the screws to secure the wires. Note: Make sure the Live and Neutral wires are as short as possible. Note: Make sure the Earth wire is longer than the other two wires and long enough to make a loop in it (Refer to Figure 28).

47.4

Install a cable tie (Fig 28, Item 50) to the three wires.

47.5

Close the cable clamp on the integral 3-way connector and clamp (Fig 28, Item 20), over the insulated part of the mains/power cable, and install the two screws to clamp the mains/power cable in position.

47.6

Install the mains/power side panel assembly into the front case (Refer to Figure 5).

47.7

Assemble the rear case (Refer to Page 15, Section 5).

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20 30

40

10 Mains/Power Filter Earth Wire to Earth Stud

Mains/Power Switch Mains/Power Filter

50

5-way Connector

Figure 29 - Replacing the Mains/Power Side Panel Assembly

Table 25 - Mains/Power Side Panel Assembly Parts List Item

Part Number

10

631076

Mains/Power Side Panel Assembly (UK)

631078

Mains/Power Side Panel Assembly (Euro)

631079

Mains/Power Side Panel Assembly (USA)

20

151182

Wire Assembly, Mains/Power Switch - PCB Connector 1

1

30

151074

Wire Assembly, Mains/Power Switch - PCB Connector 2

1

40

631077

Wire Assembly, Mains/Power Switch - PCB Connector 9

1

50

151120

Earth Wire Assembly, Mains/Power Input

1

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48

Pump Repair

Removing the Mains/Power Side Panel Assembly

WARNING: BEFORE REMOVING THE MAINS/POWER SIDE PANEL ASSEMBLY FROM THE PUMP, MAKE SURE THE PUMP HAS BEEN ISOLATED FROM THE MAINS/POWER SUPPLY BY REMOVING THE MAINS/POWER PLUG FROM THE WALL SOCKET. 48.1

Disassemble the rear case (Refer to Page 15, Section 4).

48.2

On the 5-way connector, loosen the two screws on the compressor side nearest the side of the case, and remove the two red and two white wires (Refer to Figures 3 and 13).

48.3

Disconnect the following cable connectors from the display panel PCB (Fig 18, Item 10):

48.4

•

Display Panel PCB (Fig 3, PCB Con 1) to Mains/Power Switch (Fig 29, Item 20).

•

Display Panel PCB (Fig 3, PCB Con 2) to Mains/Power Switch (Fig 29, Item 30).

•

Display Panel PCB (Fig 3, PCB Con 9) to 5-way Connector (Fig 29, Item 40).

Remove the following items from the earth stud on the compressor mounting bracket (Fig 12, Item 20): 48.4.1

The top nut (Fig 12, Item 80) and washers (Fig 12, Items 70 and 90).

48.4.2

The following five earth wire tags: •

Mains/power filter.

•

Rotary valve assembly.

•

Front panel/display panel PCB.

•

Compressor assembly.

•

Solenoid valve assembly.

48.4.3

The bottom nut (Fig 12, Item 80) and washers (Fig 12, Items 70 and 90).

48.4.4

The earth wire tag from the mains/power input (Fig 29, Item 50).

48.5

Lift the mains/power side panel assembly (Fig 29, Item 10) out of the front case, together with the mains/power lead and plug (Refer to Figure 5).

49

Installing the Mains/Power Side Panel Assembly

49.1

Install the mains/power side panel assembly (Fig 29, Item 10) into the front case, with the mains/ power switch nearest the display panel PCB (Refer to Figure 5).

49.2

Install the following items to the earth stud on the compressor mounting bracket (Fig 12, Item 20): Note: You must install the items in the order stated below, and as shown in Figure 12. 49.2.1

The earth wire tag from the mains/power input.

49.2.2

The plain washer (Fig 12, Item 90), followed by the anti-vibration washer (Fig 12, Item 70) and then the nut (Fig 12, Item 80). Tighten the nut.

49.2.3

The following five earth wire tags:

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Mains/power filter.

•

Rotary valve assembly.

•

Front panel/display panel PCB.

•

Compressor assembly.

•

Solenoid valve assembly.

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49.2.4 49.3

Nimbus Paediatric System Service Manual

The plain washer (Fig 12, Item 90), followed by the anti-vibration washer (Fig 12, Item 70) and then the nut (Fig 12, Item 80). Tighten the nut.

Connect the red and white wires from the compressor to the two terminals on the 5-way connector, on the compressor side nearest the side of the case (Refer to Figures 3 and 13). Tighten the screws to secure the wires. Note: Make sure the red and white wires from each side of the compressor are separated, and connected to different terminals on the 5-way connector, otherwise the compressor will not operate correctly.

49.4

Connect the following power cable connectors onto the display panel PCB (Refer to Figure 3): •

Display Panel PCB (Fig 3, PCB Con 1) to Mains/Power Switch (Fig 29, Item 20).

•

Display Panel PCB (Fig 3, PCB Con 2) to Mains/Power Switch (Fig 29, Item 30).

•

Display Panel PCB (Fig 3, PCB Con 9) to 5-way Connector (Fig 29, Item 40).

49.5

Make sure that all the electrical connections have been reconnected correctly.

49.6

Assemble the rear case (Refer to Page 15, Section 5).

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Pump Repair

Replacing the Mains/Power Fuses

WARNING: BEFORE REMOVING THE MAINS/POWER SIDE PANEL ASSEMBLY FROM THE PUMP, MAKE SURE THE PUMP HAS BEEN ISOLATED FROM THE MAINS/POWER SUPPLY BY REMOVING THE MAINS/POWER PLUG FROM THE WALL SOCKET. 50.1

Unscrew the fuseholder core from the fuseholder body (Fig 30, Item 10 or 20) and remove the fuse (Fig 30, Item 30).

50.2

Install the new fuse (Fig 30, Item 30) into the fuseholder core, and screw into the fuseholder body.

10

30

20

Figure 30 - Replacing the Mains/Power Fuses

Table 26 - Mains/Power Fuse Parts List Item

Part Number

10

198070

Fuseholder Assembly - Live (Brown)

1

20

198071

Fuseholder Assembly - Neutral (Blue)

1

30

CAS011

Fuse, 20 x 5mm, F500mAH 250V

2

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Mains/Power Switch Fuseholder Shroud 140 130

120

Blue - Out Green/Yellow Brown - Out

10 100 20 30

110

90 Mains/Power Cable

Brown - In

Blue - In 60 40

50

80 70 Figure 31 - Mains/Power Side Panel Assembly

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Pump Repair

Replacing the Plastic Panel on the Mains/Power Side Panel Assembly

WARNING: BEFORE REPLACING THE PLASTIC PANEL ON THE MAINS/POWER SIDE PANEL ASSEMBLY, MAKE SURE THE PUMP UNIT HAS BEEN ISOLATED FROM THE MAINS/POWER SUPPLY BY REMOVING THE MAINS/POWER PLUG FROM THE WALL SOCKET. The wires connecting the mains/power filter to the mains/power fuseholders are hard-wired into the filter and soldered onto the fuseholders. Therefore the wires have to be un-soldered from the fuseholders before the filter and/or fuseholders can be removed. 51.1

Remove the mains/power side panel assembly (Refer to Page 61, Section 48).

51.2

Remove the mains/power switch (Refer to Page 57, Section 44).

51.3

Remove the mains/power cable (Refer to Page 59, Section 46).

51.4

Cut and remove any cable ties (Table 27, Item 150) as necessary.

51.5

On the inside of the mains/power side panel assembly, pull the fuseholder shrouds off the back of the two fuseholders (Fig 31, Items 120 and 130).

51.6

De-solder and remove the brown and blue wires (to the input of the mains/power filter, Fig 31, Item 20) from the outside tag on both fuseholders (Fig 31, Items 120 and 130).

51.7

Loosen the three screws on the side of the 5-way connector (Fig 31, Item 70) farthest from the side panel and nearest the fuseholders, and remove the live, neutral and earth wires.

51.8

Remove the two fuseholder shrouds from the wires. Table 27 - Mains/Power Side Panel Parts List

Item

Part Number

10

198303

Mains/Power Plastic Side Panel

1

20

198395

Mains/Power Filter

1

30

198327

Filter Clip

1

40

FAS145

Screw, 3mm dia x 8mm Pan Head

1

50

FAS001

Washer, 6BA Plain

1

60

FAS091

Washer, M3 Nylon

1

70

151406

5-way Connector and Clamp

1

80

151120

Earth Wire Assembly, Mains/Power Input

1

90

198312

Cable Converter

1

100

198311

Grommet

1

110

FAS215

Screw, 3mm x 8mm Csk Head

2

120

198070

Fuseholder Assembly - Live (Brown)

1

130

198071

Fuseholder Assembly - Neutral (Blue)

1

140

631327

Fuse Rating Label (All Variants)

1

150

BP196

Cable Tie

A/R

160

REF

Solder

A/R

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51.9

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Clamp the triangular flaps on both fuseholder bodies (Fig 31, Items 120 and 130), and ease them out of the plastic side panel (Fig 31, Item 10).

51.10 Remove the screw (Fig 31, Item 40) and washers (Fig 31, Items 50 and 60), and then remove the filter clip (Fig 31, Item 30) and mains/power filter (Fig 31, Item 20) from the side panel. 51.11 Carefully separate the and remove the 5-way connector and clamp (Fig 31, Item 70) from the cable converter (Fig 31, Item 90). 51.12 Remove the screws (Fig 31, Item 110), and remove the cable converter (Fig 31, Item 90) and grommet (Fig 31, Item 100) from the side panel. 51.13 Discard the existing plastic side panel (Fig 31, Item 10). 51.14 If not already fitted, stick a fuse label (Fig 31, Item 140) onto the front of the new plastic side panel (Fig 31, Item 10). 51.15 Make sure that the grommet (Fig 31, Item 100) is installed in the cable converter (Fig 31, Item 90). 51.16 Install the cable converter and grommet through the new plastic side panel (Fig 31, Item 10) from the outside, and install the screws (Fig 31, Item 110) to secure them. Note: Do not overtighten the screws, or you may strip the threads. 51.17 Snap the 5-way connector and clamp (Fig 31, Item 70) onto the cable converter (Fig 31, Item 90). 51.18 Position the mains/power filter (Fig 31, Item 20) onto the inside of the side panel (Refer to Figure 27). Note: Make sure the orientation of the mains/power filter is correct. 51.19 Install the filter clip (Fig 31, Item 30) over the mains/power filter (Fig 31, Item 20), and install the screw (Fig 31, Item 40) and washers (Fig 31, Items 50 and 60) to secure them. Note: Do not overtighten the screw, or you may strip the thread. 51.20 Feed the blue wire on the “neutral” fuseholder (Fig 31, Item 130) through the hole nearest the edge of the plastic side panel (Fig 31, Item 10), from the front of the panel. 51.21 Pass the back of the fuseholder through the hole. Align the flat edges of the fuseholder with those of the hole in the side panel, and push the fuseholder into the hole until it clips into place. 51.22 Pass the blue wire (“Blue - In”) from the input to the mains/power filter (Fig 31, Item 20) through the smaller hole in the fuseholder shroud. 51.23 Solder this blue wire onto the outside tag on the on the “neutral” fuseholder (Fig 31, Item 130) using solder (Table 27, Item 160). 51.24 Feed the brown wire on the “live” fuseholder (Fig 31, Item 120) through the other hole in the plastic side panel, from the front of the panel. 51.25 Pass the back of the fuseholder through the hole. Align the flat edges of the fuseholder with those of the hole in the side panel, and push the fuseholder into the hole until it clips into place. 51.26 Pass the brown wire (“Brown - In”) from the input to the mains/power filter (Fig 31, Item 20) through the smaller hole in the fuseholder shroud. 51.27 Solder this blue wire onto the outside tag on the on the “live” fuseholder (Fig 31, Item 120) using solder (Table 27, Item 160). 51.28 Slide the fuseholder shrouds over the backs of both fuseholders. Note: Make sure that the fuseholder tags are completely covered by the fuseholder shrouds. 51.29 Loosen the three screws on the side of the 5-way connector (Fig 31, Item 70) farthest from the side panel and nearest the fuseholders, and install the following wires (Refer to Figure 27): •

Chap 3 Page 66

Connect the earth wire tag (Fig 31, Item 80) from the earth stud on the compressor bracket to the terminal on the 5-way connector nearest the fuseholders.

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Connect the blue wire from the “neutral” fuseholder (Fig 31, Item 130) to the terminal next to the earth wire tag on the 5-way connector.

•

Connect the brown wire from “live” fuseholder (Fig 31, Item 120) to the middle terminal on the 5-way connector.

51.30 Install the mains/power cable (Refer to Page 59, Section 47). 51.31 Install the mains/power switch (Refer to Page 57, Section 45). 51.32 Cable tie the mains/power wires, as necessary (Table 27, Item 150). 51.33 Install the mains/power side panel assembly (Refer to Page 61, Section 49).

52

Removing the Pump Case

52.1

Disassemble the rear case (Refer to Page 15, Section 4).

52.2

Disassemble the pump filter (Refer to Page 17, Section 6).

52.3

Remove the solenoid valve assembly (Refer to Page 21, Section 10).

52.4

Remove the compressor assembly (Refer to Page 27, Section 16).

52.5

Remove the AV mounts and the compressor brackets (Refer to Page 30, Section 18).

52.6

Remove the pneumatic side panel assembly (Refer to Page 55, Section 42).

52.7

Remove the silencer bag (Refer to Page 23, Section 12).

52.8

Remove the mains/power side panel assembly (Refer to Page 61, Section 48).

52.9

Remove the display panel PCB (Refer to Page 39, Section 26).

52.10 Remove the front panel (Refer to Page 41, Section 28). Note: The pressure control assembly can remain on the display panel. 52.11 Remove the sounder assembly (Refer to Page 43, Section 30). 52.12 Remove the high pressure switch (Refer to Page 47, Section 36).

53

Installing the Pump Case

53.1

Install the front panel (Refer to Page 41, Section 29), together with the pressure control assembly.

53.2

Install the display panel PCB (Refer to Page 39, Section 27).

53.3

Install the high pressure switch (Refer to Page 47, Section 37).

53.4

Install the sounder assembly (Refer to Page 43, Section 31).

53.5

Install the compressor brackets and the AV mounts (Refer to Page 31, Section 19).

53.6

Install the compressor assembly (Refer to Page 29, Section 17).

53.7

Install the solenoid valve assembly (Refer to Page 22, Section 11).

53.8

Install the mains/power side panel assembly (Refer to Page 61, Section 49).

53.9

Install the pneumatic side panel assembly (Refer to Page 56, Section 43).

53.10 Install the silencer bag (Refer to Page 23, Section 13). 53.11 Make sure that all the tubes and electrical connections have been reconnected correctly. 53.12 Assemble the pump filter (Refer to Page 17, Section 7). 53.13 Assemble the rear case (Refer to Page 15, Section 5).

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Pump Labels

Table 28 gives the part numbers for the foot and rear pump labels: Table 28 - Pump Label Sets Item

Part Number

10

631326

Foot Label for Pumps with Serial number 631xxxxxx

1

20

631312

Rear Label (UK) for Pumps with Serial number 631xxxxxx

1

-

631313

Rear Label (USA) for Pumps with Serial number 631xxxxxx

1

-

631314

Rear Label (Euro) for Pumps with Serial number 631xxxxxx

1

-

LAB307

Front Label Iconised

1

-

LAB308

Rear Label Set for Pumps from Serial number 09xxxxxxxx (Includes ArjoHuntleigh Foot Label)

1

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Mattress

CHAPTER 4 MATTRESS 1

General

This chapter includes details of spareable parts for the Nimbus Paediatric Mattress. All repairs should be carried out by Arjohuntleigh approved service personnel. It is easier to carry out any repair work on the mattress if it is fully deflated first. Disconnect the tubeset between the mattress and the pump to deflate the mattress. After carrying out a service or any of these repairs on the mattress, check the all press studs on the mattress are connected. After carrying out a service or any repairs, the mattress must be tested for serviceability. Carry out an inflation test on the mattress in accordance with Chapter 6 Testing.

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10 80

30

60 90

20 70 40

50

Figure 32 - Mattress Details

Table 29 - Mattress Parts List Item

Part Number

10

631083

Top Cover

1

20

631085

CPR Assembly

1

30

631091

Soft Foam

1

40

152114

AutoMatt Sensor Pad

1

50

631090

Hard Foam

1

60

631087

Base Cover

1

70

631086

Tubeset

1

80

631088

Air Filled Cell

20

90

631310

Angle Bracket

1

-

631089

Manifold/Base/Loop

1

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Mattress

Tubeset

The Nimbus Paediatric system has an integral tubeset, part number 631086. The following information details instructions on the use of and for the replacement of the end connection, of which there are two versions.

New version

Old Version

Operation of the New Version Tubeset Connector 2.1

To connect the new tubeset to the pump or mattress, do the following (Refer to Figure 33): 2.1.1

Locate the bottom of the tubeset connector onto the bottom of the pump/mattress connector.

2.1.2

Pull the top of the tubeset connector up and over the top of the pump/mattress connector, until the tubeset connector “clicks” into position.

Pump/Mattress Connector Tubeset Connector

Figure 33 - Connecting the New Tubeset

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2.2

Nimbus Paediatric System Service Manual

To disconnect the new tubeset from the pump or mattress, do the following (Refer to Figure 34): 2.2.3

Move the tubeset connector down by pulling the tubeset extrusion downwards, and then pull the bottom of the tubeset connector away from the bottom of the pump/ mattress connector.

2.2.4

Lift the top of the tubeset connector off the top of the pump/mattress connector.

Tubeset Connector Pump/Mattress Connector

Tubeset Extrusion

Figure 34 - Disconnecting the New Tubeset

Operation of the Old Version Tubeset Connector Connect the tube-set to the mattress and pump, ensure both connections are secure (Refer to Figure 35).

Figure 35 - Operation of the Old Tubeset

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Mattress

Replacing the Release Button - Old Connector version

Note: As a complete assembly, only the New Version of the connector is available. 3.1

Press the release button and disconnect the tubeset from the mattress manifold and the pump.

3.2

Refer to Figure 36. Press the release button down and insert the blade of a small flat head screwdriver in between the release button and the manifold body (A).

3.3

Carefully twist the screwdriver and push the release button up so that the retention lug can clear the manifold body.

3.4

Repeat this operation for the at position B and remove the release button.

3.5

Replace the springs as necessary.

3.6

Position the new release button over the springs and manifold body.

3.7

In a similar manner to that of removal, use a flat head screwdriver between the release button and the manifold body to position the retention lugs under the manifold body.

A

20

B

Release Button

Retention Lug

10

Manifold Body

40

30 50

Old Version

Figure 36 - Replacing an Old Tubeset Release Button Table 30 - Old Tubeset Components Item

Part Number

Description

Qty

151302

5 way Connector Button (Grey)

151445

5 way Connector Button (Blue)

151301

5 way Connector Body (Grey)

151465

5 way Connector Body (Blue)

151300

5 way Tube Extrusion

151429

5 way Tube Extrusion (2.5 metres)

40

152391

“Press Here” label

2

50

151342

5 way Connector Spring

4

10

20

30

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4

Nimbus Paediatric System Service Manual

New Tubeset Assembly Components

There are two identical tubeset connectors on the tubeset assembly, connected together by a 5-way tubeset extrusion (Refer to Figure 37).

40

10 50

30

40 20 60

Figure 37 - Standard and Extended Tubeset Assembly

Table 31 - Tubeset Assembly Item

Part Number

-

151200

Tubeset Assembly, 5-Way, Mk II, Standard (1m long)

1

-

151201

Tubeset Assembly, 5-Way, Mk II, Extended (2.5m long)

1

10

151526

Connector Body, 5-Way

2

20

151525

Front Cover, 5-Way Connector

2

30

151527

Rear Cover, 5-Way Connector

2

40

151342

Spring, 5-Way Connector

4

50

151538

Label, 5-Way Connector

2

151300

Tubeset Extrusion, 1m long (for Standard Assembly, 151200)

1

151429

Tubeset Extrusion, 2.5m long (for Extended Assembly, 151201)

1

60

Description

Qty

Figure 38 - Replacing the Tubeset Extrusion

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5

Repairing the New Tubeset Connector Assembly

5.1

Remove and discard the adhesive label (Fig 37, Item 50) from the rear of the connector assembly (Refer to Figure 39). Note: A new label must always be fitted after any repair, since the old label is easily damaged and will not stick properly to the connector assembly after it has been re-assembled.

Label

Connector Assembly

Figure 39 - Replacing the Label 5.2

Remove the rear cover (Fig 37, Item 30) from the front cover (Fig 37, Item 20), as follows (Refer to Figure 40): 5.2.1

At one corner at the bottom of the connector assembly, carefully insert a small flatbladed screwdriver between the front cover and rear cover.

5.2.2

Pull this bottom corner of the rear cover outwards, to release it from the front cover.

5.2.3

Repeat Paras 5.2.1 and 5.2.2 to release the other bottom corner of the rear cover.

5.2.4

Pull the rear cover downwards to release the top of the rear cover from the front cover. Rear Cover Step 2: Pull the bottom corner of the Rear Cover outwards

Front Cover Step 3: Pull the Rear Cover downwards Step 1: Insert a Flat-Bladed Screwdriver at the bottom corner Figure 40 - Removing the Rear Cover 5.3

Remove the front cover (Fig 37, Item 20) from the connector body (Fig 37, Item 10), as follows (Refer to Figure 41): 5.3.5

Push the connector body downwards and the front cover upwards to compress the two springs (Fig 37, Item 40).

5.3.6

When fully compressed, carefully insert a small flat-bladed screwdriver between the top of the connector body and the slot in the top centre of the front cover, and push the top of the connector body out of the slot in the front cover.

5.3.7

Lift the bottom of the connector body, together with the two springs, out of the bottom of the front cover.

5.3.8

Remove the two springs from the connector body.

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Push Connector Body downwards Front Cover Connector Body

Insert a Flat-Bladed Screwdriver between the top of the Connector Body and the slot in the top centre of the Front Cover

Spring

Push Front Cover upwards

Figure 41 - Removing the Front Cover 5.4

Remove the tubeset extrusion (Fig 37, Item 60) from the connector body (Fig 37, Item 10), as follows (Refer to Figure 42): 5.4.9

Hold the one of the connector body in one hand and the tubeset extrusion in the other.

5.4.10

Pull the connector body off the tubeset extrusion. Note: The connector body is tightly secured to the tubeset extrusion. You may have to pull very hard to separate them.

Connector Body Outlet Ports on the Connector Body

Tubeset Extrusion

Figure 42 - Removing the Connector Body from the Tubeset Extrusion 5.5

Install the tubeset extrusion (Fig 37, Item 60) onto the connector body (Fig 37, Item 10), as follows (Refer to Figure 42): 5.5.11

If the old tubeset extrusion is being re-installed, check the condition of the end of the tubeset extrusion. If the end of any of the five tubes are split or damaged, do either of the following: •

Using a sharp knife, cut approximately 25mm off the end of the old tubeset extrusion. Note:Make sure the end of the tubeset is cut straight, and not at an angle.

•

Discard the old tubeset extrusion and install a new one.

5.5.12

If the old connector body is being re-installed, check the condition of the outlet ports on the connector body. If any of the five outlet ports are damaged, discard the old connector body and install a new one.

5.5.13

Position the connector body at the end of the tubeset extrusion.

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Mattress

Note: If one connector body has already been fitted to the tubeset extrusion, make sure that both connector bodies are orientated as shown in Figure 38. 5.5.14

Push the end of the tubeset extrusion fully onto the outlet ports on the connector body, so that the end of the tube extrusion is flush with connector body. Note: The tubeset extrusion is a very tight fit on the connector assembly.

5.5.15

5.6

After it has been assembled, check the security of the tubeset extrusion on the connector assembly. If it is NOT a tight fit, do the following: 5.5.15.1

Remove the tubeset extrusion from the connector body (Refer to Para 5.4).

5.5.15.2

Check the tubeset extrusion and the outlet ports on the connector body, and repair or replace as necessary (Refer to Paras 5.5.11 and 5.5.12).

5.5.15.3

Re-assemble the tubeset extrusion onto the connector assembly (Refer to Paras 5.5.13 and 5.5.14).

Install the front cover (Fig 37, Item 20) onto the connector body (Fig 37, Item 10), as follows: 5.6.16

Insert the two springs (Fig 37, Item 40) into the slots in the sides of the connector body (Refer to Figure 37). Note: The sides of the slot will hold the top of the spring in position.

5.6.17

Position the connector body on top of the front cover (Refer to Figure 43).

5.6.18

Put the ends of the two springs on the bottom of the connector body into the slots in the bottom of the front cover (Refer to Figure 43).

5.6.19

Push the connector body downwards and the front cover upwards to compress the two springs (Refer to Figure 41).

5.6.20

When fully compressed, use a small flat-bladed screwdriver to push the top of the connector body under the slot in the top centre of the front cover, until it “clicks” into position (Refer to Figure 41).

Front Cover Connector Body

Spring Slot in Connector Body Figure 43 - Installing the Front Cover 5.7

Install the rear cover (Fig 37, Item 30) onto the front cover (Fig 37, Item 20), as follows (Refer to Figure 44): 5.7.21

At the top of the connector assembly, locate the four holes in the top of the rear cover over the four lugs in the top of the front cover.

5.7.22

At the bottom of the connector assembly, push the two bottom corners of the rear cover into the slots in the front cover, until they “click” into position.

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Front Cover

Rear Cover

Figure 44 - Installing the Rear Cover 5.8

Install a new adhesive label (Fig 37, Item 50) onto the rear of the connector assembly (Refer to Figure 39 for the exact position). Note: A new label must always be fitted after any repair, since the old label is easily damaged and will not stick properly to the connector assembly after it has been re-assembled.

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Troubleshooting

CHAPTER 5 TROUBLESHOOTING 1

Troubleshooting Table

The following table contains fault symptoms, their possible causes and suggests steps to rectify the problem. Where possible, reference is made to the relevant repair Chapters. . Fault Pump fails to power-up

High Pressure (HP) Alarm

Low Pressure (LP) Alarm

Possible Cause

Remedy

Pump not connected to power supply.

Check power supply is available and reconnect or replace mains supply lead as necessary.

Fuse blown.

Check mains plug fuse (UK models only) and pump fuse (all models). Replace if required. (Chapter 3, Page 63, Section 50)

Mattress

Sensor pad tube kinked.

Rectify or replace the tube.

Mattress in TRANSPORT mode.

Return to NORMAL mode.

Tubeset

Tubeset kinked or blocked.

Clear blockage or replace.

Pump

Pressure control incorrectly set or faulty.

Reset or replace (Chapter 3, Page 45, Section 33)

Faulty HP switch.

Replace (Chapter 3, Page 47, Section 36)

Incorrectly connected.

Check fitting.

Damaged.

Replace

Pump 5-way gasket damaged.

Replace (Chapter 3, Page 51, Section 40)

Loose CPR assembly.

Secure.

Tubeset

Mattress & Pump

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Troubleshooting

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Fault

Possible Cause Mattress

Low Pressure (LP) Alarm (contd.)

No Power Fail Alarm

Pump Fault Alarm

Chap 5 Page 80

Mattress (contd.)

Remedy

CPR assembly not closed properly

Reset the CPR.

Cell leak.

Trace and replace

Manifold Leak.

Replace

Transit control seal damaged.

Replace

Sensor pad disconnected.

Connect sensor pad.

Pump

Damaged/disconnected tube.

Check internal tubing and replace if necessary.

Faulty compressor.

Check shuttle and replace if necessary. (Chapter 3, Page 27, Section 16)

Blocked air filters.

Replace. (Chapter 3, Page 17, Section 6)

Faulty Low Pressure Switch

Test the switch and replace the Pressure Control Assy if necessary. (Chapter 3, Page 45, Section 33 and Section 34)

Battery discharged.

Leave unit on for 24 hours to recharge.

Battery failure.

Replace battery

Rotor Assy faulty.

Check and replace the Rotor Assy if necessary

Display Panel PCB Faulty

Check and replace if necessary (Chapter 3, Page 39, Section 26)

Pump

Pump

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Testing

CHAPTER 6 TESTING 1

Pump Flow, Pressure and Function Test

General This procedure must be carried out after a service or major repair of a pump. To test/calibrate the pump unit correctly, the test equipment in Table 32 is required. Table 32 - Pump Flow, Pressure and Function Test Equipment Item

Test Equipment

Part Number

1

Dual Pressure Gauge (0-160mm/Hg) / Flow Meter (0-25ltr/min)

PRE060

2

5-way Tubeset Adaptor

151126

3

Psion Organiser, together with Service Module Adaptor

MIS136 MIS138

or IR Interface Module, connected to a Personal Computer

MIS216 -

1.1

If the Psion Organiser is used to test the pump, it is assumed that the service personnel are familiar with the Psion Organiser user guide.

1.2

If the IR Interface Module is used to test the pump, it is assumed that the service personnel are familiar with the IR Interface User Manual, 151910.

1.3

All test equipment must be calibrated to national or international standards.

Test Setup 1.4

Connect the pump to a mains/power supply and switch the pump on.

1.5

All indicators on the front panel of the pump should illuminate for a few seconds, and then display ON and WAIT.

1.6

Refer to Figure 45, and connect the pump to the dual pressure gauge/flow meter (Table 32, Item 1) using the 5-way tubeset adaptor (Table 32, Item 2).

Port 1 - Linked to Port 5 Port 2 - Used to check Flow/Pressure Port 3 - Not Used Port 4 - Used to check Flow/Pressure Port 5 - Linked to Port 1 (also used for High/Low Pressure Check) Figure 45 - Pump Outlet Ports

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Pressure Relief Valve Check 1.7

Place the pump into Autofirm mode, and wait for the airflow between ports 2 and 4 to balance.

1.8

Monitor pump outlet on either port 2 or port 4 on the 5-way tubeset adaptor (Table 32, Item 2), and ensure sure that the valve on the dual pressure gauge/flow meter (Table 32, Item 1) is closed. The indicated pressure should be between 35mmHg and 45mmHg.

1.9

If the reading on the dual pressure gauge/flow meter fluctuates, and the pump high pressure alarms, the Pressure Relief Valve may be at fault, and should be replaced in accordance with Chapter 3, Page 21, Section 9.

Power Fail Alarm Check 1.10

Switch the pump off at the mains/power socket, leaving the pump unit switched ON. The pump should respond by illuminating the flashing red ALARM while sounding an audible alarm.

1.11

Push the MUTE button. The audible alarm should be silenced, but ALARM will continue to flash.

1.12

Reset the alarm by switching the pump OFF and then back to ON. The flashing red ALARM should be extinguished.

1.13

Switch the pump back on at the mains/power socket. The pump will respond in two ways: •

If the Power Fail Option is on (all countries except UK): The ON indicator illuminates but there is no audible alarm.

•

If the Power Fail Option is off (UK only): There is nothing displayed on the front panel and no audible alarm.

Note: Make sure the option is set correctly for the country of use.

Low Pressure Alarm Test 1.14

Switch the pump OFF and ON again.

1.15

Remove the 5-way tubeset adaptor (Table 32, Item 2) from the pump manifold. The pump should respond by illuminating the flashing red ALARM while sounding an audible alarm.

1.16

Push the MUTE button. The audible alarm should be silenced, but ALARM will continue to flash.

1.17

Replace the 5-way tubeset adaptor onto the pump manifold.

1.18

Reset the alarm by switching the pump OFF and then back to ON. The flashing red ALARM should be extinguished.

High Pressure Alarm Test 1.19

Slowly occlude the 5-way tubeset adaptor between ports 1 and 5 until the flashing red ALARM is illuminated and the audible alarm sounds.

1.20

Push the MUTE button. The audible alarm should be silenced, but ALARM will continue to flash.

1.21

Release the pressure on the tubeset.

1.22

Reset the alarm by switching the pump OFF and then back to ON. The flashing red ALARM should be extinguished.

High/Low Pressure Setpoint and Mute Mode Checks 1.23

To carry out the High and Low Pressure Switch Setpoint Checks and the Mute Mode Check, refer to the specific test procedure for the type of test equipment being used: •

Psion Organiser: Refer to Page 83, Section 2.

•

IR Interface Module: Refer to Page 84, Section 3.

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Calibration Check 1.24

Monitor pump outlet port 2 on the 5-way tubeset adaptor (Table 32, Item 2), and carry out the following tests: 1.24.1

1.24.2 1.25

Make sure that the valve on the dual pressure gauge/flow meter (Table 32, Item 1) is closed. The indicated pressure should be between:•

22mmHg and 28mmHg for pump in static mode

•

35mmHg and 45mmHg for pump in static firm mode

Fully open the valve on the dual pressure gauge/flow meter. The free air flow should be greater than 4.5 litres per minute.

Repeat these two tests on the other pump outlet port 4.

Alarm Reset and Pump Serial Number Check 1.26

2

To reset all registered alarms on the pump unit, and to check the pump serial number, refer to the specific test procedure for the type of test equipment being used: •

Psion Organiser: Refer to Page 85, Section 4.

•

IR Interface Module: Refer to Page 87, Section 5.

High/Low Pressure Setpoint Checks and Mute Mode Check using the Psion Organiser

Psion Organiser Setup 2.1

Refer to Page 89, Section 6 to set up the Psion Organiser.

High Pressure Switch Setpoint Check 2.2

Select Inputs from the Psion menu. The Psion will now display:

2.3

Slowly occlude the 5-way tubeset adaptor (Table 32, Item 2) between ports 1 and 5, and record the pressure on the manometer at which the Psion display changes to:

Low Pressure Switch Setpoint Check 2.4

Press any key on the Psion, except for Q. The Psion will now display:

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2.5

Remove the 5-way tubeset adaptor from the pump manifold, and record whether or not the display changes to:

2.6

Reconnect the 5-way tubeset adaptor to the pump.

Mute Mode Check 2.7

Press any key on the Psion, except for Q. The Psion will now display:

2.8

Check the MUTE mode is set correctly for the country of use (0 for the UK and 1 for the rest of the world). Press any key on the Psion, except Q, the Psion will now display:

3

High/Low Pressure Setpoint Checks and Mute Mode Check using the IR Interface Module

IR Interface Setup 3.1

Refer to Page 89, Section 7 for the set up and usage of the IR Interface.

3.2

Select the Test tab on the PC, enter the password TEKKICHECK, and the Test tab will be displayed (Refer to Figure 46). Note: The password is not case sensitive.

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Figure 46 - Test Tab on the PC connected to the IR Interface

High Pressure Switch Setpoint Check 3.3

Click on Refresh at the bottom of the Sensor - Status column, and the High Pressure - Status should be set to OFF.

3.4

Slowly occlude the 5-way tubeset adaptor (Table 32, Item 2) between ports 1 and 5, and record the pressure on the manometer at which the High Pressure - Status changes to ON.

Low Pressure Switch Setpoint Check 3.5

Click on Refresh at the bottom of the Sensor - Status column, and the Low Pressure - Status should be set to OFF.

3.6

Remove the 5-way tubeset adaptor from the pump manifold, and record whether or not the Low Pressure - Status changes to ON.

3.7

Reconnect the 5-way tubeset adaptor to the pump.

Mute Mode Check 3.8

Click on Refresh at the bottom of the Sensor - Status column, and record whether the Mute Mode - Status is set to OFF or ON.

3.9

Check that the Mute Mode - Status is set correctly for the country of use (OFF for the UK and ON for the rest of the world).

4

Alarm Reset and Pump Serial Number Check using the Psion Organiser

Psion Organiser Setup 4.1

Refer to Page 89, Section 6 to set up the Psion Organiser.

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Alarm Reset 4.2

Use the Psion to reset all registered alarms on the pump unit.

Pump Serial Number Check 4.3

Select Serial on the Psion. Cross reference the serial number displayed with the serial number on the pump case. Record numbers in the Service History. Note: Do not activate any alarm functions after this test procedure has been carried out as the alarm counters have been reset to zero.

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5

Testing

Alarm Reset and Pump Serial Number Check using the IR Interface Module

IR Interface Setup 5.1

Refer to Page 89, Section 7 for the set up and usage of the IR Interface.

Alarm Reset 5.2

Select the Service tab on the PC, enter the password SERVICE, and the Service tab will be displayed (Refer to Figure 47). Note: The password is not case sensitive.

5.3

Click on Alarms - RESET ALL, to reset all registered alarms on the pump unit.

Figure 47 - Service Tab on the PC connected to the IR Interface

Pump Serial Number Check 5.4

Select the Information tab on the PC (Refer to Figure 48).

5.5

Click on REFRESH to read and display the data from the pump.

5.6

Cross reference the Pump Serial Number displayed on the Information tab with the serial number on the pump case. Record the numbers in the Service History. Note: Do not activate any alarm functions after this test procedure has been carried out as the alarm counters have been reset to zero.

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Figure 48 - Information Tab on the PC connected to the IR Interface

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6

Psion Organiser Setup

6.1

Switch the Psion on and select which type of pump is to be tested from the Psion menu.

6.2

If at any time the Psion indicates the following message, then press the STATIC and MUTE buttons together on the pump.

7

IR Interface Setup and Passwords

7.1

Refer to the IR Interface User Manual, 151910, and carry out the following:

7.2

7.1.1

Install and set up the IR Interface.

7.1.2

Run the IRRemote software on the PC.

The Connection menu is displayed on the PC by default (Refer to Figure 49). For Nimbus Paediatric, select AUTOEXCEL from the menu.

Figure 49 - Connection Menu on the PC connected to the IR Interface

7.3

When prompted by the PC: 7.3.3

Press the MUTE button on the pump, and hold it depressed for more than 3 seconds.

7.3.4

Click OK on the PC dialog box.

7.4

The Information tab is now displayed (Refer to Figure 48). You must click on REFRESH to read and display the data from the pump.

7.5

Infrared data transmission progress is indicated by the message Communication successful or Communication unsuccessful displayed in the lower left-hand corner of the dialog box. Note: If the infrared data transmission status indicates Communication unsuccessful and/or a “?” is displayed in all the boxes on the Information tab (except a V in the Software Version Number box), then an error has occurred. Check the Installation and Setup section in the IR Interface User Manual, and then click on REFRESH again.

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7.6

If at any time during the testing, the infrared data transmission status indicates Communication unsuccessful, then press the MUTE button on the pump, and hold it depressed for more than 3 seconds.

7.7

IR Interface Passwords: •

The Information tab is not password protected.

•

The other four tabs (Service, Test, Production and Engineering) are password protected. Each of these tabs has a separate, unique password.

•

When any of the four password-protected tabs is selected, an Enter Password dialog box is displayed. Type in the password, and click OK. If the password is correct, the particular tab will be displayed. If the password is incorrect, access to the tab will be denied, and an Invalid Password dialog box will be displayed. Click OK, select the tab again and re-enter the password.

•

The password for the Service tab is SERVICE.

•

The password for the Test tab is TEKKICHECK.

•

Passwords are not case sensitive.

Note: The Production and Engineering tabs are for internal Arjohuntleigh use only. Should it be necessary to access either of these two tabs, please contact Arjohuntleigh who will supply the relevant passwords to access the tabs.

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8

Testing

Electrical Testing

To test and calibrate the pump unit correctly, the test equipment in Table 33 is required. Table 33 - Electrical Test Equipment Item

Test Equipment

1

Insulation Resistance Tester (Megger), 500 Vdc

2

Portable Appliance Tester

3

Multimeter / Continuity Tester

4

Dielectric Strength Tester (Flash Tester), 3.0 kVac with current Limit

Electrical Safety Checks - Class I There are several electrical safety checks that must be carried out after breakdown repairs and servicing. Where alternatives are given, the test will depend upon the available test equipment. The tests are as follows: •

Earth Continuity Test

•

Insulation Resistance Test (Megger Test), or

•

Dielectric Strength (Flash Test)

Earth Continuity Test This test is for checking the earth continuity and the earth connection to the metal parts of the appliance, which may become live because of insulation breakdown (i.e. those parts which should be earthed). A voltage is established between the earth pin of the appliance's mains/power supply plug and the metal parts of the appliance. Test Procedure •

A 25A (nominal) current is passed for 10 seconds between the earth pin of the mains/power plug, and each of the insulated metal parts designated for the product. The impedance should NOT exceed 0.2Ω.

Note: This test can be conducted with a Portable Appliance Tester. Alternatively, a Multimeter/ Continuity Tester can be utilised, but the impedance is tested using a much lower current.

Insulation Resistance Test This test checks the integrity of the appliance's insulation. This test is applied between the Live and Neutral wires (connected together), and earth. In addition, this test is also applied to the Live and Neutral wires (connected together), and the appliance's enclosure. Test Procedure •

500 Vdc is applied to the insulation and the measured resistance must be greater than 2MΩ.

Note: This test can be conducted using a Portable Appliance Tester.

Dielectric Strength Test (Flash Test) This test shows the response of the insulation to high a.c. voltage stress, indicates the effects of capacitive current, and gives an early warning of insulation problems which may develop in the appliance.

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Leakage Circuit Test (USA) This test measures the risk currents in accordance with the ANSI-AAMI ESI-1993 Standard (American National Standard Safe Current Limits for Electromedical Apparatus) or as specified in UL60601-1).

WARNING: DANGER OF ELECTRIC SHOCK. DO NOT TOUCH ANY EXPOSED PARTS WHILE CONDUCTING THIS TEST. DO NOT TOUCH ANY PART OF YOUR BODY WITH THE CONTACTS OF THE PROBES. WARNING: THIS EQUIPMENT SHOULD NOT BE USED IF YOU HAVE A HEARING AID OR PACEMAKER FITTED, DUE TO THE POSSIBILITY OF ELECTROMAGNETIC DISTURBANCE. CAUTION: The voltage levels used for this test, may stress and weaken the insulation. This test is therefore not recommended as a routine test. It should be only used after a major assembly/disassembly has been completed. Test Procedure •

1 kVac (120V versions) or 1.5 kVac (220-240 V versions) is applied between the live and neutral wires (connected together), and the appliance's earthed parts. No breakdown should occur.

•

3 kVac (120V versions) or 4 kVac (220-240 V versions) is applied between the live and neutral wires (connected together) and the appliance's non-earthed enclosure. No breakdown should occur.

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9

Testing

Mattress Pressure and Function Test

This procedure must be carried out after a service or major repair of a mattress. To test and calibrate the pump unit correctly, the test equipment in Table 34 is required. Table 34 - Mattress Pressure and Function Test Equipment Item

Test Equipment

1

Pressure / Flow Meter

2

Portable Inflation Test Unit

3

Stopwatch

Test Procedure 9.1

Connect a portable inflation test unit to the mattress.

9.2

Fully inflate the mattress, and connect it to a pressure/flow meter.

9.3

Test to the following requirements: •

Inflation test pressure 48 to 54 mmHg

•

Inflation stabilization period 30 seconds

•

Inflation test period 10 minutes

•

Leak rate must not exceed 4 mmHg

Note: If the mattress fails the tests, investigate as to the reason why, repair any faults and retest in accordance with the test specification.

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Technical Specification

CHAPTER 7 TECHNICAL SPECIFICATION PUMP Model:

Nimbus Paediatric

Part Numbers:

631002

UK

631003

USA

631004

EURO

240 Vac, 50 Hz

UK

220 Vac, 50 Hz

Europe

120 Vac, 60 Hz

USA

Supply Voltage:

Power Input:

30 VA

Size:

336 mm x 210 mm x 100 mm (13.2” x 8.3” x 4.0”)

Weight:

3.5 kg (7.7 lb)

Case Material:

ABS Plastic

Plug Fuse Rating:

5A to BS1362 (UK ONLY)

Pump Fuse Rating:

F500 mAH 250 V

Degree of protection against electric shock:

Mains Connected - Class I Type BF

Degree of protection against liquid ingress:

IPX0

Mode of operation:

Continuous

Cycle Times:

10 Minutes

SYMBOLS O (Off)

I (On)

Power Disconnects from the mains supply Power Connects to the mains supply With respect to electric shock, fire and mechanical hazards only in accordance with UL60601-1 and CAN/ CSA C22.2 No. 601.1. MEDICAL

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Do not dispose of in domestic refuse

Alternating Current

Dangerous voltage

Refer to accompanying documents

Type BF

Refer to the User Manual

Fuse

Ref:

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Model number

SN:

Serial Number

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Technical Specification

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ENVIRONMENTAL INFORMATION Condition

Temperature Range

Relative Humidity

Atmospheric Pressure

Operating

+10°C to +40°C (+50°F to +104°F)

30% to 75%

700hPa to 1060 hPa

Storage and Transport

-40°C to +70°C (-40°F to +158°F)

10% to 95% (non-condensing)

500 hPa to 1060 hPa

MATTRESS INFORMATION Part No.

631022

Material

Cover: Polyurethane coated knitted fabric Base: Polyurethane coated woven fabric

Weight kg

Length mm

Width mm

Height mm

5.8 (13 lb)

1300 (51”)

660 (26”)

150 (6”)

Cell: 0.3mm (0.012”) Polyurethane flexible sheeting

COVER SPECIFICATION Standard Cover

Feature

(Dartex)®

Removable Cover

Yes

Moisture Vapour Permeable

Yes

Air Permeable

No

Low Friction

Yes

Water Resistant / Repellent

Yes

Infection Control

Material coating is Bacteriostatic, fungistatic, antimicrobial

Fire Retardant

BS 7175: 0,1 & 5

2-Way Stretch

Yes

Washing Conditions Drying Conditions

MAX 95°C (203°F) for 15 mins(1) Tumble Dry up to 130°C (266°F) or Air Dry 50 Wash Cycles (minimum)

Life Span Application Area

Acute and Homecare

1. Check your local policy to determine the time/temperature ratio required to achieve thermal disinfection.

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CLEANING SYMBOLS 95

Wash at 95°C (203°F)

130

Do not Tumble dry above 130°C

Do not iron

Wipe surface with damp cloth

Do Not Use Phenol-based cleaning Solutions

Use solution diluted to 1000 ppm of Available Chlorine

Do Not Dry Clean

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Parts List

CHAPTER 8 PARTS LIST 1

General

On the left side of the Description column in the main parts list, the inclusion of none, one or two leading “bullets” is used to indicate the different levels of assembly and sub-assembly, as detailed below.

Symbol

Assembly Level

Example

(Blank)

Level 1 or Top Assembly

Front Case

•

(Single Bullet)

Level 2 or Sub-Assembly

• Power Supply PCB Assembly

• •

(Double Bullet)

Level 3 or Sub-Sub-Assembly

• • Fuse, 3.15A 20mm Type T

2

Overall Assembly Parts List

Nimbus Paediatric Pump General Assembly 631002

Nimbus Paediatric Pump, UK

631003

Nimbus Paediatric Pump, USA

631004

Nimbus Paediatric Pump, EURO

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3

Nimbus Paediatric System Service Manual

Pump Assembly Parts List

Part Number

Description

Fig - Item

Qty

Nimbus Paediatric Pump General Assembly 151123

Hanging Bracket Assembly

4--

1

151427

• Bracket

4-10

1

151428

• Wire

4-20

1

FAS046

• Screw, M3 x 10 Csk Head

4-30

2

FAS216

• Nutsert, M3 x 0.5 Euro Series

4-40

2

501055

Rear Case Assembly

5-10

1

198300

Front Case

5-20

1

FAS110

Screw, M4 x 16 Pan Head

5-30

4

501063

Sponge Cord, Length 475mm

5-40

1

501064

Sponge Cord, Length 350mm

5-50

1

507413

Rubber Foot

5-60

8

198301

Rear Case

6-10

1

151311

Filter Housing Plate

6-20

2

151312

Filter Felt

6-30

1

FAS179

Screw, 2.5mm dia x 10mm Pan Head

6-40

6

631075

Relief Valve

7-10 8-10

1

631306

Solenoid Valve MAC35 220V

7-10 8-20

1

NMB366

T-Piece, 25mm

7-30

1

403306

Restrictor

7-40

1

631071

Silencer Bag

7-50

1

197113

Tube, 25mm long (Compressor - Silencer Bag)

7-60

1

252149

Tube, 240mm long (T-Piece - Silencer Bag)

7-70

1

198146

T-Tube, Long (T-Piece - 5-way Manifold - Rotary Valve Assy)

7-80

1

198145

T-Tube, Short (5-way Manifold - Rotary Valve Assy - Pressure Control Assy)

7-90

1

631073

Tube, 100mm long (5-way Manifold - Solenoid Valve)

7-100

1

631074

Tube, 130mm long (Solenoid Valve - Pressure Control Assy)

7-110

1

151091

Tube Assembly, High Pressure Switch

7-120

1

151386

P-Clip, No. 6

7-130

3

FAS144

Nut, M4 Full

7-140

3

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Part Number

Parts List

Description

Fig - Item

Qty

FAS053

Washer, M4 Anti-vibration

7-150

3

631075

Relief Valve

8-10 9-10

1

631306

Solenoid Valve MAC35 220V

9-20

1

631328

Solenoid Plate

9-30

1

FAS151

Screw, M3 x 20mm Pan Head

9-40

2

FAS002

Washer, 6BA Anti-vibration

9-50

2

FAS218

Screw, 4mm dia x 12 Pan Head

9-60

2

FAS053

Washer, M4 Anti-vibration

9-70

1

198082

Earth Wire Assembly

9-80

1

BP196

Cable Tie

9-90

A/R

165071

Compressor Assembly - 120V (USA)

11-10

1

165075

Compressor Assembly - 220V (UK, Euro)

11--

1

165311

Compressor Lid

11-20

1

165312

Compressor Lid Gasket

11-30

1

FAS177

Screw, M4 x 8 Csk Head

11-40

4

165303

Grommet, Lead Through

11-50

2

165300

Grommet, Blank

11-60

2

165071

Compressor Assembly - 120V (USA)

12-10

1

165075

Compressor Assembly - 220V (UK, Euro)

12-10

1

151310

Mounting Bracket with Earth Stud

12-20

1

198400

Mounting Bracket

12-30

1

631328

Solenoid Plate

12-40

1

198375

Anti-vibration (AV) Mount

12-50

4

252149

Tube, 240mm long (T-Piece - Silencer Bag)

12-60

1

631074

Tube, 130mm long (Solenoid Valve - Pressure Control Assy)

12-70

1

151103

Earth Wire Assembly, Compressor

12-80

1

198082

Earth Wire Assembly, Solenoid Valve

12-90

1

151386

P-Clip, No. 6

12-100

3

FAS218

Screw, 4mm dia x 12 Pan Head

12-110

2

FAS183

Screw, 4mm x 8mm Pan Head

12-120

4

FAS053

Washer, M4 Anti-vibration

12-130

13

FAS144

Nut, M4 Full

12-140

8

FAS160

Washer, M4 Plain

12-150

1

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Parts List

Nimbus Paediatric System Service Manual

Part Number

Description

Fig - Item

Qty

198399

PVC Beading

12-160

25 mm

NMB168

Loom Retaining Bracket, 9mm

12-170

1

BP196

Cable Tie

12-190

A/R

151310

Mounting Bracket with Earth Stud

14-10

1

FAS144

Nut, M4 Full

14-20

2

FAS053

Washer, M4 Anti-vibration

14-30

2

FAS160

Washer, M4 Plain

14-40

2

FAS173

Screw, M4 x 6 Pan Head

15-10

5

FAS160

Washer, M4 Plain

15-20

3

165310

Bump Stop

15-30

3

198307

Bump Stop Plate

15-40

1

FAS193

Screw, M3 x 5 Pan Head

15-50

4

165314

Compressor Filter Lid

15-60

4

165313

Compressor Filter

15-70

4

165054

Valve/Shuttle Assembly - 63 Shore - Spares Item (UK, Euro)

16-10

1

165092

Valve/Shuttle Assembly - 70 Shore - Spares Item (USA)

16-10

1

165306

Outlet Tube

16-20

4

FAS176

Screw, M4 x 12 Pan Head

16-30

4

FAS207

Washer, Disk Spring ID4.2 OD10

16-40

4

FAS172

Screw, M4 x 10 Pan Head

16-50

4

FAS206

Washer, Belleville Serrated, Safety

16-60

4

165050

Coil/E-stack Assembly 5.5K turns, 120V (USA)

16-70

1

165058

Coil/E-stack Assembly 12K turns, 240V (UK, Euro)

16-70

1

165303

Grommet, Lead Through

16-80

2

MIS155

Tool, Magnet Spacer - Saddle Gauge Set (5 Gauges: A to E)

16-90

1

151457

Rechargeable Battery

17-10

1

BP196

Cable Tie

17-20

1

631302

Display Panel PCB, 240V (UK, Euro)

18-10

1

631322

Display Panel PCB, 120V (USA)

18-10

1

FAS098

Nut, M3 Full

18-20

7

FAS091

Washer, M3 Nylon

18-30

6

FAS002

Washer, 6BA Anti-vibration

18-40

1

151352

Spacer, 8.5 mm long x 3.2 x 6 mm

18-50

7

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Part Number

Parts List

Description

Fig - Item

Qty

151402

Fuse, PCB 100mA 250V

18-60

1

151103

Earth Wire Assembly, Display Panel PCB

18-70

1

631324

Nimbus Paediatric Front Panel Assembly (All Variants)

19-10

1

FAS145

Screw, 3 dia x 8 Pan Head

19-20

10

151309

Front Panel Fixing Cap

19-30

10

151071

Sounder Assembly

20-10

1

151402

Fuse, PCB T100mAL 250V

20-20

1

BP196

Cable Tie

20-30

1

198080

Pressure Control Assembly

21-10

1

FAS098

Nut, M3 Full

21-20

2

FAS002

Washer, 6BA Anti-vibration

21-30

2

500357

Pin, Spirol

21-40

1

198394

High Pressure Switch

22-10

1

FAS182

Screw, 3mm x 20mm Pan Head

22-20

2

151091

Tube Assembly, High Pressure Switch

22-30

1

151068

Cable Assembly, High Pressure Switch

22-40

1

BP196

Cable Tie

22-50

1

151056

Rotary Valve Assembly (UK, Euro)

23-10

1

151110

Rotary Valve Assembly (USA)

23-10

1

FAS222

Screw, 3mm dia x 25mm Pan Head

23-20

2

FAS002

Washer, 6BA Anti-vibration

23-30

2

FAS087

Washer, M3 Plain

23-40

1

504323

Spacer, M3 x 17mm

23-50

2

BP196

Cable Tie

23-60

1

198145

T-Tube, Short (5-way Manifold - Rotary Valve Assy - Pressure Control Assy)

23-70

2

198146

T-Tube, Long (T-Piece - 5-way Manifold - Rotary Valve Assy)

23-80

1

NMB376

Tube, 50mm long (to Pressure Control Assembly)

23-90

1

NMB374

Tube, 70mm long (to Pressure Control Assembly)

23-100

1

198147

Tube, 150mm long (5-way Manifold - Solenoid Valve)

23-110

1

NMB370

Elbow Connector, Barbed

23-120

2

NMB169

Mossplug, 6mm ID

23-130

1

198082

Earth Wire Assembly, Rotary Valve Assembly

23-140

1

151471

Manifold Connector, Blue - Braced

24-10

1

Issue 2 June 2010

SER0011

Chap 8 Page 103

Parts List

Nimbus Paediatric System Service Manual

Part Number

Description

Fig - Item

Qty

151304

Manifold Gasket, 5-way

24-20

1

151480

Barbed Manifold, 5-way

24-30

1

FAS233

Screw, 3mm dia x 16mm Csk Head

24-40

4

198302

Pneumatic Plastic Side Panel

25-10

1

151471

Manifold Connector, Blue - Braced

25-20

1

151304

Manifold Gasket, 5-way

25-30

1

151480

Barbed Manifold, 5-way

25-40

1

FAS233

Screw, 3mm dia x 16mm Csk Head

25-50

4

FAS041

Screw, M3 x 25mm Csk Head

25-60

4

FAS098

Nut, M3 Full

25-70

4

VIB004

Grommet

25-80

4

197312

Nut, M3 Domed Plastic

25-90

4

NMB169

Mossplug, 6mm ID

25-100

1

631092

Pneumatic Side Panel Assembly (UK, Euro)

26-10

1

631093

Pneumatic Side Panel Assembly (USA)

26-10

1

198396

Mains/Power Switch, 240V, “On-Off” (USA)

27-10

1

198397

Mains/Power Switch, 240V, “0-I” (UK, Euro)

27-10

1

198328

Mains/Power Cable, 4m (UK)

28-10

1

504324

Mains/Power Cable, 4m (Euro)

28-10

1

BP300

Mains/Power Cable, 4m (USA)

28-10

1

151406

5-way Connector and Clamp

28-20

1

198312

Cable Converter

28-30

1

198311

Grommet

28-40

1

BP196

Cable Tie

28-50

1

631076

Mains/Power Side Panel Assembly (UK)

29-10

1

631078

Mains/Power Side Panel Assembly (Euro)

29-10

1

631079

Mains/Power Side Panel Assembly (USA)

29-10

1

151182

Wire Assembly, Mains/Power Switch - PCB Connector 1

29-20

1

151074

Wire Assembly, Mains/Power Switch - PCB Connector 2

29-30

1

631077

Wire Assembly, Mains/Power Switch - PCB Connector 9

29-40

1

151120

Earth Wire Assembly, Mains/Power Input

29-50

1

198070

Fuseholder Assembly - Live (Brown)

30-10

1

198071

Fuseholder Assembly - Neutral (Blue)

30-20

1

Chap 8 Page 104

SER0011

Issue 2 June 2010

Nimbus Paediatric System Service Manual

Part Number

Parts List

Description

Fig - Item

Qty

CAS011

Fuse, 20 x 5mm, 500mA QB

30-30

2

198303

Mains/Power Plastic Side Panel

31-10

1

198395

Mains/Power Filter

31-20

1

198327

Filter Clip

31-30

1

FAS145

Screw, 3mm dia x 8mm Pan Head

31-40

1

FAS001

Washer, 6BA Plain

31-50

1

FAS091

Washer, M3 Nylon

31-60

1

151406

5-way Connector and Clamp

31-70

1

151120

Earth Wire Assembly, Mains/Power Input

31-80

1

198312

Cable Converter

31-90

1

198311

Grommet

31-100

1

FAS215

Screw, 3mm x 8mm Csk Head

31-110

2

198070

Fuseholder Assembly - Live (Brown)

31-120

1

198071

Fuseholder Assembly - Neutral (Blue)

31-130

1

631327

Fuse Rating Label (All Variants)

31-140

1

BP196

Cable Tie

31-150

A/R

MIS046

Solder

31-160

A/R

631326

Foot Label for Pumps with Serial number 631xxxxxx

---

1

631312

Rear Label (UK) for Pumps with Serial number 631xxxxxx

---

1

631313

Rear Label (USA) for Pumps with Serial number 631xxxxxx

---

1

631314

Rear Label (Euro) for Pumps with Serial number 631xxxxxx

---

1

LAB307

Front Label Iconised

---

1

LAB308

Rear Label Set for Pumps from Serial number 09xxxxxxxx (Includes ArjoHuntleigh Foot Label)

---

1

4

Mattress Assembly Parts List

Part Number

Description

Fig - Item

Qty

631022

Nimbus Paediatric Mattress

---

-

631083

Top Cover

32-10

1

631085

CPR Assembly

32-20

1

631091

Soft Foam

32-30

1

152114

AutoMatt Sensor Pad

32-40

1

631090

Hard Foam

32-50

1

631087

Base Cover

32-60

1

Issue 2 June 2010

SER0011

Chap 8 Page 105

Parts List

Nimbus Paediatric System Service Manual

Part Number

Description

Fig - Item

Qty

631086

Tubeset

32-70

1

631088

Air Filled Cell

32-80

20

631310

Bracket

32-90

1

631089

Manifold/Base/Loop

32--

1

Chap 8 Page 106

SER0011

Issue 2 June 2010

Nimbus Paediatric System Service Manual

Service Contact Details

CHAPTER 9 SERVICE CONTACT DETAILS AUSTRALIA ArjoHuntleigh Pty Ltd PO Box 330 Hamilton Hill Western Australia 6963 T: +61 8 9 337 4111 F: +61 8 9 337 9077

GERMANY ArjoHuntleigh GmbH Peter-Sander-Strasse 10 DE-55252 MAINZ-KASTEL T: +49 6134 1860 F: +49 3167 186 160

SPAIN ArjoHuntleigh Ibérica S.L. Carratera de Rubi, 88, 1a planta-A1 Sant Cugat del Valles ES-BARCELONA 08130 T: +34 93 583 1120

AUSTRIA ArjoHuntleigh GmbH Dörrstrasse 85 AT-6020 INNSBRUCK T: +43 512 20 4160-0 F: +43 512 20 4160 75

ITALY ArjoHuntleigh S.p.A. Via Tor Vergata, 432 IT-ROMA 00133 T: +39 06-87426214 F: +39 06-87426222

SWEDEN Huntleigh Healthcare AB Box 30012 S-200 61 Limhamm T: +46 (0)40 36 03 50 F: +46 (0)40 49 43 75

BELGIUM ArjoHuntleigh NV/SA Evenbroekveld 16 B-9420 ERPE MERE T: +32 (0) 53 60 73 80 F: +32 (0) 53 60 73 81

NETHERLANDS ArjoHuntleigh BV Biezenwei 21, 4004 MB TIEL Postbus 6116, 4000 HC Tiel Tel: +31 (0) 344 64 08 00 Fax: +31 (0) 344 64 08 85

SWITZERLAND ArjoHuntleigh AG Florenzstrasse 1D CH-BASEL 4023 T: +41 (0) 61 337 97 77 F: +41 (0) 61 311 97 42

DENMARK Huntleigh Healthcare A/S Vassingerødvej 52 DK-3540 LYNGE T: +45 4 913 8486 F: +45 4 913 8487

NEW ZEALAND Huntleigh Healthcare Ltd Unit 6/38 Eaglehurst Road Ellerslie, Auckland, New Zealand T: +64 9 525 2488 F: +64 9 525 2433

UNITED KINGDOM Huntleigh Healthcare Ltd 310-312 Dallow Road, Luton Bedfordshire, LU1 1TD T: +44 (0)1582 413104 F: +44 (0)1582 459100

FINLAND ArjoHuntleigh OY Vanha Porvoontie 229 FI-01380 VANTAA T: +35 8 9 4730 4320 F: +35 8 9 4730 4999

POLAND ArjoHuntleigh Polska Sp. z.o.o. ul. Ks. Wawrzyniaka 2 PL-62052 KOMORNIKI T: +48 61 662 1550 F: +48 61 662 1590

USA

FRANCE HNE Médical SA 451 Chemin de Champivost BP20, 69579 Limonest Cedex T: +33 (0)4 78 66 62 66 F: +33 (0)4 78 66 62 67

SOUTH AFRICA Huntleigh Africa Pty Ltd Willem Cruywagen Avenue Stand 120, Klerksoord Pretoria, South Africa T: +27 12 542 4680 F: +27 12 542 4982

Issue 2 June 2010

SER00011

ArjoHuntleigh 2349 W Lake Street - Suite 250 Addison, IL 60101 T: +1 630 307 2756 Toll Free US: (800) 323 1245

Chap 9 Page 107

SER0011_02: June 2010