front spinner bulkhead, propeller hub, rear spinner bulkhead and spacer assembly. Engage the bolts by hand into the threads of the crankshaft flange bushings.
SENSENICH PROPELLER MANUFACTURING COMPANY, INC. AREA CODE 717 PHONE - 569-0435 FAX - 560-3725
14 CITATION LANE LITITZ, PA 17543
Detailed Installation Instructions For Sensenich Metal Propellers (Experimental Aircraft Installations)
Aircraft Preparation: a)
Be certain that magneto switch is off, and that both magnetos are grounded.
b)
Rotate the crankshaft by hand, until the engines number 1 cylinder is at TDC (Top Dead Center). For a Lycoming engine, this is determined by aligning the TC mark on the starter ring gear with the punch mark on the starter housing . Another way in which to verify number 1 is at TDC is to remove the top plug from cylinder 1 and while rotating the crankshaft check for the compression stroke. Once the compression stroke is found, continue to rotate the crank until the piston is at the top of the cylinder. Replace the plug and lead, torque both to the appropriate values.
c)
Thoroughly clean the surfaces of the crankshaft flange, pilot stub, and flange bushings. Carefully examine each surface and especially examine the end of the crankshaft pilot stub. Even minor nicks or burrs must be smoothed. The flange bushing threads must be clean and dry.
Propeller Preparation: Note:
a)
These instructions assume that a spinner will be installed and that the rear bulkhead is sandwiched between the rear propeller mounting face and the spacer.
Assembly the propeller, spacers, and rear spinner bulkhead. The #1 stamped on the spacer must be aligned with the #1 blade of the propeller. The #1 blade is indicated on the front side of the hub by a small "1" which is stamped into the aluminum just outside the hub circle.
DOCUMENT NAME: Detail Propeller Installation (Experimentals).doc Kenneth C. DeGraff PREPARED BY : DATE: 3-26-2001 2 REVISION: DATE: Page 1 of
b)
Thoroughly clean the rear/mounting face of the propeller, pilot bore, and flange bushing counter bores. Carefully examine each surface. Even minor nicks or burrs must be smoothed.
Propeller Installation: a)
Locate the propeller on the engine flange with the number one blade at 11 o’clock.
b)
Mount the front spinner bulkhead onto the front of the propeller hub.
c)
Place a washer on each attaching bolt and insert the bolts through front spinner bulkhead, propeller hub, rear spinner bulkhead and spacer assembly. Engage the bolts by hand into the threads of the crankshaft flange bushings.
d)
Torque the attaching bolts according to the torque decal on the side of the propeller hub. If the decal is not present refer to the chart below. Apply torque in small increments, working diagonally across the bolt circle until reaching the recommended torque.
e)
Prior to installation of lock wire it is a good idea to check the propeller tip tracking and the run-out of the spinner dome. The propeller tip track should be within 1/8 inches (0.125”). The spinner dome should be made to run as true as possible. It may be necessary to loosen the attaching bolts and shift the front spinner bulkhead slightly to correct any run-out problems. If the attaching bolts are loosened repeat step (d) above.
f)
Install 0.032 to 0.040 inch diameter stainless steel lock wire in propeller bolt heads locking bolt heads together. Wire the bolt heads in pairs, twisting the wire between the bolt head. ATTACHING BOLT DIAMETER -------------3/8 inch
RECOMMENDED WRENCH TORQUE ------------23 to 25 lb-ft (280 to 300 lb-in) (31.6 to 33.9 newton-meters)
7/16 inch
40 to 45 lb-ft (480 to 540 lb-in) (54.2 to 61.0 newton-meters)
1/2 inch
60 to 65 lb-ft (720 to 780 lb-in) (81.3 to 88.1 newton-meters)
DOCUMENT NAME: Detail Propeller Installation (Experimentals).doc Kenneth C. DeGraff PREPARED BY : DATE: 3-26-2001 2 REVISION: DATE: Page 2 of
b) When installing the spacer, make sure at least 3/4 inch but not more than. 1-1/4 inch of dowel is protruding from the spacer. The #1 stamped on the.
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rear hub face is given with the repair specifications for each propeller model. 4.BLADE ANGLES CORRECTION: After the blades have been brought into face ...
are shown by Figures 2 and 3 of this manual. Nicks or cuts into the leading or trailing edge of a blade may be individually repaired as shown by. Figure 2 ...
rings. A customer needs a prop for a. Porterfield, a Ryan STA or a Welch. OW6M (we don't know what ... The central hub hold is bored out then a drilling fixture is ...
technological move in which modern machining .... The technology is no more ad- vanced. At some point in .... Pick up ATIS and get clearance before the Hobbs ...
costs, but only standard database and analytical tools were being ... Advanced exploration using the Synera's Intelligent ... technology and solutions. synera ...
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Much has been written about detecting metal fatigue through inspection for cracks. This should not give the false impression that the absence of cracks indicates ...
Apr 19, 1993 - the hub failed, releasing a propeller blade. The resultant ... Many assume dry air helps preserve metal. ... A propeller stored with its blades in a.
of the Playboy which contains the fuselage and tail group - zinc chromated, landing gear, wheels, wing ribs, spars, plans, plus many fittings and other parts.
May 13, 2013 - Manufacturing Process Planning ⢠Simulation Tools for .... these criteria, more than one solution is usually possible and trade-off analyses should ...... and Vollman, T.E. 1964, Allocating facilities with CRAFT, Harvard Business.
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fatigue limit is exceeded, metal lite is being used up. Virtu- ally all metal .... the blade or running a pencil tip lightly along the blade ... Node Location from tip. 17".
way of life. We can take comfort in Oscar ... Turning a bolt into a nut moves it forward a given distance for each full turn. This is its pitch. If you have a 16-pitch bolt, one full turn will advance it 1/16 inch, or 16 full turns will move it 1 ...
(IPS) and location of the mass trim weights. (in degrees) from the engine index mark. The ACES manual provides an excellent guide to dynamically balancing ...
