Assembly And Installation Of Brake - Piper Cheyenne IIIA Airplane Maintenance Manual

PIPER AIRCRAFT
PA-42-720 (Advanced Trainer)
MAINTENANCE MANUAL
B. Brake Assemblies (continued)
3. Removal and Disassembly of Brake and Disc - Carrier Assembly (refer to 32-40-00 Figure 404)
(continued)
(d) To remove entire brake assembly, proceed as follows:
(1.) Be sure no pressure exists in the brake system. Remove and cap the hydraulic brake
lines.
(2.) Remove six high shear torque bolts. Withdraw the brake assembly.
4. Assembly and Installation of Brake and Disc - Carrier Assembly (refer to 32-40-00 Figure 404)
(a) If piston housing, disc-carrier, spacer plate, and torque plate have been assembled, proceed as
follows:
(1.) Lay piston housing assembly on a clean, flat surface with the piston housing's open side
up.
(2.) Install carriers with linings on their pistons.
(3.) Lay disc-carrier assembly over and linings onto the piston housing.
(4.) With carriers and linings installed on torque plate, align spacer plate on piston housing
and install torque plate onto piston housing with anchor bolts.
(5.) Lubetorque the anchor bolts to 350 - 370 inch-pounds.
(b) With the brake assembled, position piston housing toward the inboard side of the gear with the
open end up. Install brake assembly torque plate onto the axle torque plate using high shear
torque bolts. Torque to 170 ± 10 inch-pounds.
(c) Reconnect hydraulic lines and bleed brakes.
(d) Reinstall wheel by slowly sliding it over the axle. Align the brake disc-carrier teeth with slots in
the wheel.
(e) Install axle nut ensuring the bearings are seating properly. (Refer to 32-40-00 Assembly and
Installation of Main Wheel.)
EFFECTIVITY:
32-40-00
Jan 10/90