Cleaning, Inspection And Repair Of Gear Actuating Cylinder; Assembly Of Gear Actuating Cylinder - Piper SENECA II Service Manual

PIPER SENECA II SERVICE MANUAL
6-19. CLEANING, INSPECTION AND REPAIR OF GEAR ACTUATING CYLINDER.
a. Clean cylinder components with a suitable dry type solvent and dry thoroughly.
b. Inspect cylinder assembly for the following:
1. Interior walls of cylinder and exterior surface of the piston for scratches, burrs, corrosion,
etc.
2. Stripped or damaged threads.
3. Rod end fitting and swivel fitting of cylinder for wear and corrosion.
4. End fitting retainer slot for excess wear.
c. Repairs to the cylinder are limited to polishing out small scratches, burrs. etc., and replacing
components. (Refer to Parts Catalog for replacement part numbers.)
6-l 9a. INSTALLATION OFT-RINGS. (Refer to Figure 6-7a.)
a. Place synthetic sealing ring into groove. Insure that seal is not twisted and that it lies flat in the
groove. (Refer to Sketches A and B.)
b. Orient each non-extrusion ring so that the rad iused corner (if there is one) will be mated t'o the seal
when installed. (Refer to Sketch E.)
c. Insert one end of the non-extrusion ring (formed by the scarf cut) into the space between the side
of the groove and the side of the seal. ( Refer to Sketch E.)
d. Work the entire circumference into this space, insuring that the scarf cut of the non-extrusion
ring is properly mated. (Refer to Sketch F.)
e. Repeat Steps c and d for the second non-extrusion ring.
f. Spread a few drops of system hydraulic oil evenly around the sealing edge of the packing.
6-20. ASSEMBLY OF GEAR ACTUATING CYLINDER. (Refer to Figure 6-7.)
a. Install O-rings (3), (5) and (8) in their respective positions.
h. Lubricate areas around O-rings with hydraulic fluid, park-a-lube or vaseline. Slide end gland ( 1) on
piston rod (6). Slide piston into cylinder body (7).
c. Insert hook end of new lock ring (4), (P/N 755 997), in slot of cylinder body and slot in end gland.
Rotate gland counterclockwise to completely wrap lock ring into assembly.
d. Align port in end gland and cylinder body.
e. Check smoothness of operation of piston and static test unit to check for possible cut O-rings.
f.
Clean nose cylinder orifices.
Revised: 12/08/83
1119
HYDRAULIC SYSTEM