Quantcast BRAKE DRUM RUNNING HOT

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TM 9-2330-380-14&P
Table 4-2. Unit Troubleshooting (cont'd)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
14. BRAKE DRUM RUNNING HOT
Step 1. Check brake adjustment.
If brakes are out-of-adjustment, adjust brakes (para. 4-50 (XM1063) or 4-51 (M129A4)).
If brake adjustment is correct, proceed to step 2.
Step 2. Check for weak or broken brake shoe return spring.
If return spring is weak or broken, replace return spring.
If return spring is not defective, proceed to step 3.
Step 3. Check for out-of-round brake.
If brake drum is out-of-round, replace brake drum.
15. UNEVEN BRAKING
Step 1. Check brake adjustment.
If brakes are out-of-adjustment, adjust brakes (para. 4-50 (XM1063) or 4-51 (M129A4)).
If brake adjustment is correct, proceed to step 2.
Step 2. Check for grease on brake lining.
If grease is present, replace oil seal (para. 4-52 (XM1063), 4-53 (M129A4)) and brake
16. NOISY BRAKES
Step 1. Check for loose rivets or loose lining.
If rivets or lining are loose, notify direct support maintenance.
If rivets or lining are not loose, proceed to step 2.
Step 2. Check for grit, rust or metal particles in brake drum.
If grit, rust or metal particles are present, clean brake drum and brake components.
If grit, rust and metal components are not present, proceed to step 3.



 


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