Figure 7-13. Brake Master Cylinder (Hand/Parking Brake)
7-36. DISASSEMBLY OF BRAKE MASTER CYLINDER. (Refer to Figure 7-13.)
a. Remove the cylinder from its mounting bracket in accordance with instructions given in paragraph 7-35.
b. To disassemble the cylinder, first remove the piston rod assembly by removing the snap ring (11) from the
annular slot at the rod end of the cylinder. Draw the piston rod assembly from the cylinder.
d. Remove the O-rings from the piston and gland.
7-37. CLEANING, INSPECTION AND REPAIR OF BRAKE MASTER CYLINDER.
a. Clean the cylinder parts with a suitable solvent and dry thoroughly.
b. Inspect the interior walls of the cylinder for scratches, burrs, corrosion, etc.
c. Inspect the general condition of the fitting threads of the cylinder.
d. Check the piston for scratches, burrs, corrosion, etc.
e. Repairs to the cylinder are limited to polishing out small scratches, burrs, etc. and replacing 0-rings.
7-38. ASSEMBLY OF BRAKE MASTER CYLINDER. (Refer to Figure 7-13.)
—NOTE—
Use a small amount of hydraulic fluid (MIL-H-5606) on the O-rings and
component parts to prevent damage and ease of handling during
reassembly.
10. O-RING
11. SNAP RING
12. ROD, PISTON
13. SPRING, RETAINING
14. ROLL PIN
15. WASHER
1. HOUSING
2. SNAP RING
3. BUSHING, RETAINER
4. SPRING
5. O-RING
6. PISTON
7. DYNA SEAL
8. O-RING
.75
.191
.193
.312
.747
.745
COUNTERBORE
.562 DIA. .0625 DEEP
A349
PIPER AIRCRAFT
PA-28-161 CADET
AIRPLANE MAINTENANCE MANUAL
Issued: FEBRUARY. 28, 1989
LANDING GEAR AND BRAKE SYSTEM
1I16