Brake Assembly; Removal And Disassembly Of Wheel Brake Assembly - Piper PA-31-350 Maintenance Manual

PIPER AIRCRAFT
T-1020
MAINTENANCE MANUAL
ASSEMBLY AND INSTALLATION OF NOSE WHEEL. (Refer to Figure 32-17.)
1. Ascertain that the bearing cup in each wheel half is properly installed. Lubricate the bearing cones
per lubrication chart in Chapter 12. Reassemble the cones, grease seal retainers, grease seal felts and snap
rings into the proper wheel halves.
2. Inflate the tube sufficiently to round it out. Install tube into tire so that balance mark (yellow or
white band) is radially aligned with the tire balance mark (red dot).
3. Place outer wheel half into tire and pull tube valve stem through valve hole. Turn tire and outer
wheel half over and place inner wheel half into the tire and align the bolt holes with the outer wheel half. In-
stall bolts through the inner wheel half and washers and nuts on the outer wheel half. Torque wheel nuts per
recommended torque value on name plate of wheel.
4. Inflate tire to recommended operating pressure per Chapter 12.
5. Flex the fork enough to allow for the installation of the wheel and spacer tubes. Insert the axle tube.
fork caps and tie bolt. Adjust the tie bolt nut to allow the wheel to turn free, yet not fit loose on the axle.
BRAKE ASSEMBLY.
REMOVAL AND DISASSEMBLY OF WHEEL BRAKE ASSEMBLY. (Refer to Figure 32-18.)
1. To remove the brake assembly, first disconnect the brake line from the brake cylinder housing. Cap
brake line to prevent contamination.
2. Remove the self-locking cap bolts that secure the backing plates and shim to the brake cylinder
housing.
3. Slide the brake cylinder housing from the torque plate.
4. Remove the pressure plate by sliding off the anchor bolts of the housing.
5. The pistons may be removed by injecting low air pressure in the cylinder fluid inlet and forcing the
pistons from the housing.
6. The following procedure should be used when removing anchor bolts:
A. Position cylinder assembly on a holding fixture. (Refer to Figure 32-19. Step A.)
B. Use a suitable arbor press and remove the anchor bolt from the cylinder body.
32-43-01
Page 32-49
Revised: November 17. 1983
3F15