Name: Piper PA-28-161
Brand: Piper
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PIPER AIRCRAFT, INC.

PA-28-161, WARRIOR III

MAINTENANCE MANUAL

PAGE 13

Nov 30/06

3E23

32-40-00

(d) Close the open bleeder fitting to which the pressure hose is attached. Do not remove the

tube from the fluid reservoir until both brakes have been bled. Check the brakes on the

side being bled for proper pedal pressure. Replace cap on bleeder fitting.

TE: It may be necessary to remove any trapped air in the top of the wheel brake unit

by applying pressure to the system with the brake hand lever and slowly opening

the bleeder and release the hand lever.

(e) Repeat steps b through d to the left main landing gear.

(f) Drain excess fluid from the reservoir to fluid level with a syringe.

(3) Bleeding Brakes After A Component Has Been Changed

UTION: DO NOT ALLOW PRESSURE TO BLEED OFF BEFORE CLOSING BLEEDERS

FOR THIS WILL ALLOW AIR TO ENTER THE SYSTEM. REPEAT THE

PUMPING AND BLEEDING APPROXIMATELY 10 OR MORE TIMES OR UNTIL

ALL THE AIR IS RELEASED FROM THE SYSTEM. DURING ALL BLEEDING,

FLUID LEVEL OF THE RESERVOIR MUST BE MAINTAINED.

(a) Actuate the hand brake handle until some pressure builds up in the system. At this time,

crack the attaching B nuts at any of the hose connections of the replaced unit. Most of the

handle sponge feeling should be displaced by this action.

(b) Actuate the master cylinder and the toe brake cylinder on the side where the component

was changed and bleed fluid through the brake assembly on the wheel by pumping

pressure and cracking bleeder until pressure drops.

F. Brake System Leak Check

Pull for a good, firm hand brake and lock parking brake mechanism. Allow system to stand for

approximately 10 minutes, then by gripping the park brake handle it should not be able to be pulled

aft further than the original set. Should the handle be able to be pulled towards the panel and feel

spongy, a leak is present at some point in the system. This leak may appear at any one of the

connections throughout the system or internally in the master brake cylinder or wheel brake

assemblies.

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