32-46-00
Page 32-31
Reissued: August 1, 1986
BRAKE SYSTEM LEAK CHECK
1. Pull brake handle and lock parking brake.
2. Allow system to stand for approximately 10 minutes, then pull brake handle. It should not be
able to be pulled further than originally set.
3. If the handle is able to be pulled towards the panel or if it feels spongy, a leak is present
at some point in the system.
—NOTE—
This leak may appear at one of the connections in the system or
internally in the master brake cylinder or wheel brake assemblies.
BLEEDING OF THE BRAKES AFTER A UNIT HAS BEEN CHANGED
—CAUTION—
Do not allow pressure to bleed off before closing bleeders; this will
allow air to enter the system. Repeat pumping and bleeding
approximately 10 or more times or until alI air is released from the
system. During all bleeding, fluid level of reservoir must be
maintained.
1. Actuate hand brake handle until pressure builds up in the system. Crack the attaching B nuts at
any hose connection of the replaced unit.
—NOTE—
Most handle sponginess should be displaced by cracking of the
attaching B nuts.
2. Actuate master cylinder and toe brake cylinder of changed unit and bleed fluid through brake
assembly on wheel by pumping pressure and cracking bleeder until pressure drops.
—END—
2C19
PIPER AIRCRAFT
PA-28-236
MAINTENANCE MANUAL
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