WACO YMF F5 Series, Руководство по обслуживанию

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WACO Classic Aircraft Corporation
YMF WACO F5 SERIES MAINTENANCE MANUAL
REVISION: H Page
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RELEASED: 07/21/2017 PART NO. YMFAMM-1
(2) With
strut compressed to contact spring, add oil until it is within 3 ½” of the plug opening. Use MIL-H-
5056 petroleum base hydraulic fluid. Cycle strut to fill air pockets, recheck fluid level.
(3) Replace plug securely making sure to lock in place with lock wire.
(B) Instructions for Disassembling & Reassembling Shock Struts
(1) Remove top and bottom gear fairings.
(2) Drain oil into container having approximately one-quart capacity by removing the plug at the top of the
strut and the plug at the lower end of splined axle.
(3) Remove brake cylinder and line from bracket at wheel. Unfasten the line from the strut but do not
disconnect the brake line.
(4) Remove wheel assembly.
(5) Remove bolt attaching lower end of strut to cross brace strut, thereby permitting the strut to swing out
so internal parts can be removed.
(6) Remove lock ring #14133 and back off nut #14132.
(7) Slip leather boot #12127 down off from grooved flange by removing the upper clamp, thereby
permitting access to bolts. By removing these bolts and pulling on the axle the internal parts will slide
out of the cylinder.
(8) Remove the lock wire which locks the aluminum retainer bearing #14135 and unscrew retainer
bearing using a spanner wrench in holes provided for same. Care must be taken not to burr up the
slots on this part, as this would cause scoring to the inside wall of the outer tube.
(9) Pull piston assembly #19234 from splined axle.
(10) Slide spring #12021, piston stop #15599 and retainer off from upper end of piston assembly.
(11) To assemble, insert piston assembly into splined axle taking care to get leather plunger inserted
evenly all around and assemble in the opposite manner from disassembling. Attention is also drawn
to be sure that all surfaces of inside of housing, spring, piston tube and splined strut tube are coated
with cup grease before assembly. Apply Permatex “Form A Gasket” or equivalent to threads in
#14135 piston retainer bearing when installing onto the splined strut. After assembly is completed,
re-lubricate splined bushing with grease gun at zerk fitting provided. Refill oil as above.
6.3 EMPENAGE
(A) Tail Assembly and Rigging
Get the stabilizer right side up, which will place the ball nut on bottom, and flange pointing downward.
First, screw this ball nut on the threaded bolt, which will be done by having one man in the airplane work
the stabilizer adjustment which will turn the bolt, and let another man hold the stabilizer properly aligned
so the threads will start. When the nut has been screwed down to a neutral position, attach the rear of
the stabilizer to the fuselage.
The elevator control cables can now be connected, making sure to attach correct cables to the top and
bottom of the elevator horn. Adjust the elevator cables and position of the elevators by the turnbuckles,
being careful to not let over two threads form either end of the turnbuckle barrel show after adjustment.
When properly adjusted, set cable tension to 25 +/- 5 pounds.
The elevator control travel should be adjusted as follows: Set the stabilizer trim to the full nose down
position. Align the elevator with the stabilizer as viewed from the end. The elevator balance area should
align with the end rib of the stabilizer when in this position. This is considered the neutral position for
establishing the elevator travels. For aircraft without a down stop at the elevator horn, the down travel
should be 27 +/- 5 degrees. Adjustment is made by changing the cable length with the turnbuckles as
required to move the elevator to the desired position with the stick full forward. Reset cable tension and