Bendix Commercial Vehicle Systems DOUBLE ANCHOR PIN CAM BRAKE 5/04 - Manual (Page 11)

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8. Loose lining. A. Improper size rivets (too long, too A. Re-rivet.
short, improper diameter).
B. Improper crimping of rivet. B. Re-rivet.
C. Enlarged rivet holes in shoe. C. Replace part.
D. Incorrect lining hole size or counter D. Replace linings.
bore depth.
E. Rust build up on shoe table. E. Clean, remove rust and paint shoe
9. Cracked lining at A. Overtightening bolts. A. Correct as required.
rivet holes or
bolt holes.
B. Wrong type rivets or bolts. B. Replace part.
C. Rivets not properly crimped. C. Replace lining.
D. Dirt or rust on shoe table. D. Clean, remove dirt and debris.
E. Wrong size lining counter bore. E. Replace linings.
10. Elongated rivet A. Loose rivets or bolts. A. Replace shoe and lining.
holes.
BRAKE DRUM TROUBLESHOOTING CHART
SYMPTOM CAUSE REMEDY
1. Brake drum heat A. Out of round brake drum. A. Turn, per manufacturer’s
checked. specifications.
B. Eccentric mounting of drum. B. Inspect wheel and drum and
replace defective part.
C. Loose wheel bearing. C. Correct as required.
D. Glazed linings. D. Replace linings.
E. Improper friction materials for duty E. Consult vehicle manufacturer.
cycle of vehicle.
F. Overworked brake. F. Check for proper brake balance.
(Ref; Bendix procedure to check
out system.)
G. Driver abuse. G. Correct as required.
H. Wrong drum, too light. H. Replace part.
2. Excessive scoring A. Defective brake lining. A. Replace linings.
of drum. B. Abrasive material between lining and B. Clean, remove dirt and debris.
drum.
C. Soft drum. C. Check hardness on flange. Should
be 187 Brinnel minimum.
D. Excessive lining wear, rivets D. Replace lining.
contacting drum.
E. Drum not turned at last reline. E. Turn per manufacturer’s
specifications.
F. Build up of abrasives in rivet holes. F. Blow out debris.