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81 2. Clutch faults and elimination Possible causes and characteristics of faults Methods of check & elimination (1) Clutch dithering (a) The vehicle overloads too much (b) Not start at a low-speed gear (c) Release bearing is short of oil and damaged (d) Corrugated sheet cracks, friction disc damages, rivets loose, spring of shock absorber ruptures or shock ab鄄 sorbing damping slice damages. (a) Load according to specification (b) Start at 1st gear (c) Clean, lubricate or replace (d) Replace (2)Clutch slip (a) Friction disc is too thin, rivet reveal or has oil dirt on it (b) Pressure of diaphragm spring is insufficient (c) Free stroke of the clutch pedal is too small (d) The vehicle overloads too much (e) Not start at a low-speed gear (f) Keep one's foot on clutch pedal in driving (a) Clean it up or rivet a new friction disc (b) Replace (c) Fit to 3-5mm (d) Load according to specification (e) Start at a low-speed gear (f) Change bad driving habits (3)Clutch release is not complete (a) Free stroke of clutch pedal is too large (b) Inner and outer lock rings wear or rupture (a)Fit to 3-5mm (b) Replace Possible causes and characteristics of faults Methods of check & elimination (c) Corrugated sheet cracks or distorts (d) Spring of shock absorber ruptures (c) Replace (d) Replace 80 Possible causes and characteristics of faults Methods of check & elimination 渊1冤It爷s hard to turn or the steering wheel cannot return (a) Steering tie rod is not lubricated sufficiently (a) Lubricate king pin and ball end knuckle and front wheel tie rod. Replace if necessary (e) Replace 渊2冤 Tire is abnormally abraded (a) Front wheel alignment is improper (a) Adjust, replace parts if necessary 3援Front axle faults and elimination HFC1045 series trucks |