Figure 32-14. Brake Master Cylinder (Hand/Parking Brake)
CLEANING, INSPECTION, AND REPAIR OF MASTER CYLINDER (HAND BRAKE)
1. Clean cylinder pans with a suitable solvent and dry thoroughly.
2. Inspect interior walls of cylinder for scratches, burrs, corrosion, etc.
3. Inspect general condition of fitting threads of cylinder.
4. Check piston for scratches, burrs, corrosion, etc.
5. Repairs to cylinder are limited to polishing out small scratches, burrs, etc., and replacing O-rings.
ASSEMBLY OF MASTER CYLINDER (HAND BRAKE)
—NOTE—
Use a small amount of hydraulic fluid(MlL-N-5606) on O-rings
and other component parts to prevent damage and ease of
handling during reassembly.
1. Install new O-ring on inside and outside of packing gland and on outside of piston. (When installing
teflon O-ring on piston, it is recommended that it be installed with use of a cone placed against piston.
Construct cone of plastic or metal with dimensions shown in figure 32-14.
2. To assemble piston rod assembly, install on rod, in order, roll pins, return spring retainer washer,
retaining spring, packing gland with O-rings, seal, piston with O-ring, spring and retainer bushing.
Secure these pieces with snap ring on end of rod.
32 - 44 - 00
Page - 32-25
Reissued: August 1, 1986
2C13
PIPER AIRCRAFT
PA-28-236
MAINTENANCE MANUAL
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