Replacement Of Wiper Strip On Landing Gear Struts; Main Gear And Doors; Main Gear Oleo Strut - Piper PA-31-350 Maintenance Manual

PIPER AIRCRAFT
T-1020
MAINTENANCE MANUAL
REPLACEMENT OF WIPER STRIP ON LANDING GEAR STRUTS.
1. Place the airplane on jacks. (Refer to Jacking, Chapter 7.)
2. Jack the airplane only high enough to take weight off the gear.
3. Release the air pressure from the strut by depressing the valve core pin until the pressure has
diminished.
4. Using snap ring pliers, disengage the snap ring from the annular slot in the oleo housing and allow
it to lay at the lower end of the piston tube along with the wiper strip retainer washer.
5. Remove the old wiper strip from the housing, and clean and inspect the housing to determine that
no pieces remain in it.
6. Wipe the piston tube and check it for any abrasions which may damage the new wiper. Polish the
tube to remove any abrasions found.
7. A new wiper strip should be cut with a 30 degree bevel, a little longer than needed, to circle the
piston tube.
8. Insert the new wiper strip up into the oleo housing with the tapered edge down. Slide the retainer
washer and snap ring up the piston tube and insert them into the oleo housing. Using snap ring pliers to
compress the snap ring, install it into the annular slot in the oleo housing.
9. Inflate the oleo strut in accordance with instructions given in Oleo Struts, Chapter 12, and remove
the airplane from the jack.
MAIN GEAR AND DOORS.
MAIN GEAR OLEO STRUT.
DISASSEMBLY OF MAIN GEAR OLEO. (Refer to Figure 32-1.)
The main gear oleo assembly may be removed and disassembled from the gear oleo housing with the gear
removed from or installed on the airplane.
1. Place the airplane on jacks. (Refer to Jacking, Chapter 7.)
2. Place a drip pan under the main gear to catch spillage.
3. Remove the air and fluid from the oleo. (Refer to Oleo Struts, Chapter 12.)
4. To remove the piston tube assembly from the oleo housing, remove the upper and lower torque link
connecting bolt assembly and separate the links. Note the number and thickness of spacer washers between
the two links.
5. Compress the piston tube, reach up along the tube and release the retainer ring from the annular
slot at the bottom of the oleo housing.
6. Pull the piston tube with component parts from the (housing) cylinder.
-NOTE-
Prior to disassembling
the upper bearing with retaining pins from
the piston tube place a reference mark with a grease pencilfrom the
upper bearing to the piston tube. This will insureproper indexing of
parts upon reassembly.
32-11-01
Page 32-06
3D20
Revised: October
15,
1982
3D20