UNEVEN OR ERRATIC SERVICE BRAKES ON TANDEM AXLE WHEELS CONTINUED

TM9-2320-270-20-1

TROUBLESHOOTING - CONTINUED

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

83. UNEVEN OR ERRATIC SERVICE BRAKES ON TANDEM AXLE WHEELS CONTINUED.

Check camshaft (1) for damage and freedom of movement (page 4-1).

Step 3.

If camshaft is damaged or binding, repair or replace (page 4-828).

Check four air lines (2) from tandem axle service brake relay valve (3) to brake

Step 4.

chambers (4) for damage or leaks by listening for hissing or using mild soap

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

If lines are damaged or leaking, repair or replace (page 4-809).

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