55 BRAKES Sr. Trouble Cause Remedy No. 7. Brakes squeaking or Judder. a. Brake drum out of round. a. Check and rectify. b. Brake drum/disc out of true. b Check and rectify. c. Brake linkages having high c. Check and rectify. friction. d. Brake liners not chamfered. d. Check and rectify. e. Excessive air gap between e. Check and rectify auto adjuster liners and shoe. mechanism. f. Loose lining rivets. f. Check and rectify. g. Back plate/caliper brake g. Tighten. mounting loose. h. Lining/pad worn out h. Check and rectify. excessively. i. Wheel bearing play not i. Adjust in order. 8. Rattling brakes. a. Unsatisfactory wear pattern a. Run in brake shoes. of brake shoes. b. Uneven action of shock b. Check shock absorber. absorbers. 9. Fluid reservoir needs a. Leak in hydraulic system. a. Check all lines, hoses and frequent topping up. unions for leaks. b. Brake fluid escaping from b. Replace vacuum seals in port of tandem master cylinder. tandem master cylinder. If necessary, remove brake fluid from vacuum booster. 10.Sudden braking effect a. Brake incorrectly adjusted. a. Readjust brake. inspite of light pedal pressure. b. Brake back plate/caliper b. Firmly tighten anchor plate. mounting loose. 11. Uneven wear on brake a. Check for correct type of a. Fit approved makes only. lining material. brake lining materials. b. Wheel cylinders corroded. b Clean/rectify the cylinders. 12.Pistons seized in wheel a. Shoe assembly linkages a. Check, rectify and free parts. cylinders. dirty or corroded. b. Mounting of wheel cylinder b. Check and rectify. out of line or loose. c. Corrosion of cylinder bores. c. Remove corrosion/rectify. 13.Parking brake ineffective. a. Brake shoe greasy. a. Change brake shoe after rectifying the cause of leakage if any. b. Excessive clearance between b. Check and rectify auto adjuster brake lining and drum. mechanism. c. Excessive free play of cables. c. Adjust cables.
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