TM-9-2330-227-14-P

SEMITRAILER, VAN: SHOP, 6-TON, SINGLE AXLE, M146

TECHNICAL MANUAL; OPERATOR’S, ORGANIZATIONAL, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE (INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST)

JUNE 1985

TM-9-2330-227-14-P - Page 108 of 576

TM 9-2330-227-14&P

ORGANIZATIONAL TROUBLESHOOTING - CONTINUED

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

10. BRAKES WILL NOT APPLY OR RELEASE - CONTINUED

Step 10.

Step 11.

Step 12.

Step 13.

Check airbrake chamber for damage.

If airbrake chamber is damaged, replace (page 4-114).

Have assistant apply towing brakes. Stand by airbrake chamber, and

check for leaks by listening for hissing sound.

If airbrake chamber leaks, notify Direct Support Maintenance.

Check hydraulic brake lines and fittings for breaks, damage or leaks.

a. If fittings are loose, tighten

b. If hydraulic tubes and fittings are damaged, replace (page 4-108).

Remove hub and drum. Check brake mechanism for damaged or broken parts

(page 4-143).

If parts are broken or damaged, replace (page 4-143).

11. BRAKES GRAB

Step 1.

Step 2.

Step 3.

Step 4.

Check brake adjustment.

If brakes are out of adjustment, adjust brakes (page 4-80).

Remove hub and drum, and check for grease or dirt on brake linings

(page 4-143).

If grease or dirt is present, replace brakeshoes (page 4-80).

Check for worn or loose brake linings.

If linings are worn to within 0.0625-inch (1 .587 mm) above rivets

or linings are loose, notify Direct Support Maintenance.

Check brakedrum for damage and signs of warpage.

If brakedrum is damaged, replace (page 4-143).

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