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92 93 Possible causes and characteristics of faults Methods of check & elimination 渊4冤Brake drum heats (a)Clearance between brake drum and shoe slice is too small (b) Return spring of the brake shoe slice ruptures or is invalid (a)Adjust (b) Replace 渊3冤Brake deviates (a) Clearances between brake drum and brake shoe slice of each wheel are different from each other (b) Brake drum distorts (d) Air pressures of tyres are not uniform wheel alignment angle changes (a) Adjust the clearances to be uniform (b) Replace slice with abrasive cloth (d) Inflate according to specification Possible causes and characteristics of faults Methods of check & elimination (1) Tyres are exceedingly worn (a) Tyre pressure is too low or too high (e) Emergency braking, sudden start, too frequent speedup (f) Interchanging of tyre crossly is not done (a) Inflate according to specification (d) Adjust to 4-6mm (diagonal tyre), 1-3mm (radial ply tyre) (e) Drive at a steady speed and do not drive too fast (f) Interchange tyres crossly on scheduled date. 9. Wheel faults and elimination HFC1045 series trucks |