Assembly And Installation Of Brake Assembly; Removal Of Master Cylinder; Disassembly Of Master Cylinder - Piper Dakota Maintenance Manual

New brake linings must be properly conditioned in order to
provide optimum servicing life. Conditioning linings is
accomplished by performing a minimum of six light pedal effort
braking applications from 25 to 40 mph. Allow the brake discs to
partially cool between stops.
ASSEMBLY AND INSTALLATION OF BRAKE ASSEMBLY (figure 32-9)
1. Lubricate piston O-ring with MIL-H-5606 fluid and install on piston. Slide piston(s) in cylinder
housing until flush with surface of housing.
2. Slide lining pressure plate onto anchor bolts of housing.
3. Slide cylinder housing assembly on torque plate of gear. Install nuts on anchor bolts and tighten to a
torque of 60 inch-pounds.
4. Position lining back plate between wheel and brake disc. Install two bolts to secure assembly, tighten
bolts to a torque of 90 inch-pounds.
5. Connect brake line to brake cylinder housing.
6. Bleed brake system. (Refer to Bleeding Brakes.)
MASTER CYLINDER (HAND BRAKE)
REMOVAL OF MASTER CYLINDER (HAND BRAKE) (figure 32-12)
1. Disconnect inlet supply line from fitting at top of cylinder and allow fluid to drain from reservoir and
line.
2. Disconnect pressure line from fitting on cylinder and allow fluid to drain from cylinder line.
3. Disconnect end of cylinder rod from brake handle by removing cotter pin that safeties connecting
clevis pin. Remove clevis pin and spacer washers.
4. Disconnect base of cylinder from its mounting bracket by removing attaching bolt assembly.
5. Remove handle assembly by removing bolt assembly that secures handle to its mounting bracket.
DISASSEMBLY OF MASTER CYLINDER (HAND BRAKE)
1. Remove cylinder from its mounting bracket.
2. Remove piston rod assembly by removing snap ring from annular slot at rod end of cylinder. Draw
piston rod assembly from cylinder.
3. Disassemble piston rod assembly by removing small snap ring securing retainer bushing, spring,
piston, seal, gland, and, if desired, the large retainer spring.
4. Remove O-rings from piston and gland.
PIPER AIRCRAFT
PA-28-236
MAINTENANCE MANUAL
—NOTE—
2C12
32 - 44 - 00
Page - 32-24
Reissued: August 1, 1986