Brake Drum Troubleshooting Chart - BENDIX SINGLE ANCHOR PIN CAM BRAKE General Description Manual

9. Cracked lining at
rivet holes or
bolt holes.
10. Elongated rivet
holes.
SYMPTOM
1. Brake drum heat
checked.
2. Excessive scoring
of drum.
10
A. Overtightening bolts.
B. Wrong type rivets or bolts.
C. Rivets not properly crimped.
D. Dirt or rust on shoe table.
E. Wrong size lining counter bore.
A. Loose rivets or bolts.

BRAKE DRUM TROUBLESHOOTING CHART

CAUSE
A. Out of round brake drum.
B. Eccentric mounting of drum.
C. Loose wheel bearing.
D. Glazed linings.
E. Improper friction materials for duty
cycle of vehicle.
F. Overworked brake.
G. Driver abuse.
H Wrong drum, too light.
A. Defective brake lining.
B. Abrasive material between lining and
drum.
C. Soft drum.
D. Excessive lining wear, rivets
contacting drum.
E. Drum not turned at last reline.
F. Build up of abrasives in rivet holes.
A. Correct as required.
B. Replace part.
C. Replace lining.
D. Clean, remove dirt and debris.
E. Replace linings.
A. Replace shoe and lining.
REMEDY
A. Turn, per manufacturer's
specifications.
B. Inspect wheel and drum and
replace defective part.
C. Correct as required.
D. Replace linings.
E. Consult vehicle manufacturer.
F. Check for proper brake balance.
(Ref; Bendix procedure to check
out system.)
G. Correct as required.
H. Replace part.
A. Replace linings.
B. Clean, remove dirt and debris.
C. Check hardness on flange. Should
be 187 Brinnel minimum.
D. Replace lining.
E. Turn per manufacturer's
specifications.
F. Blow out debris.