SERVICE BRAKES FAIL TO APPLY OR RELEASE, OR APPLY OR RELEASE SLOWLY CONTINUED

TM9-2320-270-20-1

TROUBLESHOOTING - CONTINUED

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

62. SERVICE BRAKES FAIL TO APPLY OR RELEASE, OR APPLY OR RELEASE SLOWLY CONTINUED.

Check hoses from treadle valve (1) to tandem axle relay valve (2) and pusher

Step 17.

axle relay valve (3) for damage and leaks by listening for hissing or using

soap solution and watching for bubbles (page 4-1).

a. If hoses are leaking or damaged, repair or replace hoses

(page 4-609).

b. If service brakes still fail to release or release slowly,

notify direct support maintenance.

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