TM-9-2330-335-14-P
SEMITRAILER, TACTICAL, BREAKBULK/CONTAINER TRANSPORTER, 22-1/2 TON, RESET M871R, M871A1R AND M871A2R
TECHNICAL MANUAL; FIELD AND SUSTAINMENT MAINTENANCE MANUAL (INCLUDES REPAIR PARTS AND SPECIAL TOOLS LIST)
SEPTEMBER 2008
TM-9-2330-335-14-P - Page 96 of 640
TM 9-2330-335-14&P
0012-8
0012
BRAKES - CONTINUED
7.
BRAKES DRAG AND ONE OR MORE BRAKE DRUMS RUNNING HOT.
WARNING
A hot brake can cause serious burns. Exercise extreme caution before attempting to touch brake
drum after use. Radiated heat will be felt before drum is touched. Failure to comply may result in
injury to personnel.
Step 1.
Check brake adjustment.
a.
If brakes are out of adjustment or adjusted too tightly, check operation of automatic slack adjusters
(WP 0034). Replace all defective slack adjusters.
b.
If brakes are not out of adjustment, go to step 2.
Step 2.
Remove brake drum (WP 0033) and check for broken brake shoe tension spring.
a.
If spring is broken, replace (WP 0032).
b.
If spring is not defective, go to step 3.
Step 3.
Visually check for broken or frozen camshaft roller. Look for flat spots on camshaft roller and camshaft.
a.
If camshaft roller is broken or frozen, replace (WP 0032).
b.
If camshaft is defective, replace (WP 0031).
c.
If camshaft and roller are not defective, go to step 4.
Step 4.
Check for cracked, scored, or deformed brake drum.
a.
If brake drum is cracked or deformed, replace (WP 0033).
b.
If brake drum is scored, notify Direct Support Maintenance.
8.
HARD PULLING.
Step 1.
Check for dragging brakes (side pull or hot drum).
a.
If brakes are dragging, go to MALFUNCTION 7. BRAKES DRAG AND ONE OR MORE BRAKE
DRUMS RUNNING HOT.
b.
If brakes are not dragging, go to step 2.
Step 2.
Check for loose or worn wheel bearings.
a.
If wheel bearings are loose, adjust (WP 0033).
b.
If wheel bearings cannot be adjusted, replace (WP 0033).
c.
If wheel bearings are not loose or worn, go to step 3.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
0.
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