TROUBLESHOOTING
CLUTCH
S. No. | PROBLEMS | PROBABLE CAUSES | REMEDIES |
1 | Noise while pressing the clutch pedal | Lack of lubrication in Clutch Release Bearing | Lubricate |
Clutch Release Bearing damage | Replace | ||
2 | Noise while releasing clutch pedal | Lack of lubrication in Pilot Bearing | Lubricate |
Pilot Bearing damage | Replace | ||
Clutch disk hub loose on Input shaft | Replace the worn out parts | ||
3 | Clutch slippage | Clutch Pedal free play | Adjust & correct (25 to 35 mm) |
Broken or Weak pressure spring | Replace springs | ||
Release lever height incorrect | Adjust & Correct (SC. 40 to 44mm)(DC 28 to 36 mm) | ||
Grease or oil on facings | Replace the facing, check source of | ||
Glazed clutch facing | Replace facing | ||
Glazed flywheel or Pressure plate face | Correct by machining or replace | ||
Warped Clutch facing | Replace the clutch facing | ||
Warped Flywheel or Pressure plate face | Correct by machining or replace | ||
4 | Clutch not disengaging while pressing clutch | Clutch Pedal free play more | Adjust & correct |
Release lever height setting improper | Adjust & correct | ||
5 | Wear of clutch facing | Driver Clutch pedal riding | Keep foot off clutch pedal |
Excessive and incorrect use of clutch | Reduce use | ||
Cracks in flywheel or pressure plate face | Correct by machining or replace | ||
Weak or broken pressure spring | Replace spring | ||
Clutch pedal free play less | Adjust & correct | ||
6 | Clutch pedal hard | Lack of lubrication in pedal linkage | Lubricate |
Clutch Pedal- jam on clutch shaft | Grease the shaft | ||
Release lever height setting improper | Adjust & correct | ||
7 | Clutch Pedal Pulsation | Engine and Transmission improper | Realign |
Flywheel face run out more | Correct run out or replace | ||
Release lever not evenly adjusted | Adjust & correct | ||
Pressure plate assembly misaligned | Realign | ||
Warped pressure plate or clutch facing | Replace | ||
Clutch plate nut free on | De and check clean | ||
Work clutch facing |
BRAKES
S.No. | PROBLEMS | PROBABLE CAUSES | REMEDIES |
1. | NO BRAKING ACTION | Pedal linkage broken or disconnected | Replace or Repair |
2. | POOR BRAKING ACTION | Brake setting improper | Adjust & correct |
Glazed brake liners | Replace | ||
Glazed brake disc | Correct by machining or replace | ||
3. | BRAKE STUCK | Linkage retracting spring loose | Replace springs |
Brake disc plate spring tension less | Replace springs | ||
Binding in linkage | Lubricate & free | ||
4. | NOISE WHILE BRAKING | Loose rivets of brake lining | Correct or replace |
Worn out brake lining | Replace | ||
Rough or worn out brake disc plate | Correct by machining or replace | ||
Foreign matter embedded in lining | Clean the liners | ||
Loose part in the system. | Tighten the loose |
BRAKE & CLUTCH PEDAL
S. No. | PROBLEMS | PROBABLE CAUSES | REMEDIES |
1 | Noise while pressing the clutch pedal | Lack of lubrication in Clutch Release Bearing | Lubricate |
Clutch Release Bearing damage | Replace | ||
2 | Noise while releasing clutch pedal | Lack of Lubrication in Pilot Bearing | Lubricate |
Pilot Bearing damage | Replace | ||
Clutch disc hub loose on input shaft | Tighten |
GEARBOX
S.No. | PROBLEMS | PROBABLE CAUSES | REMEDIES |
1 | NOISE | ||
Humming | Wear on gear teeth flank | Replace the gear | |
(A peculiar noise) | Damage on gear teeth flank | Replace the gear | |
Metallic grinding | Oil lever low | Top up oil lever | |
Whine (Bullet passing sound) | Backlash less | Correct the back lash either by replacing gears on housing | |
Gear machining improper | Replace the gear | ||
Hissing | Worn out bearing | Replace the gearing | |
(Leaking noise tent-tire to air lack) | Bearing ball/ race pitted | Replace the gearing | |
Rattling (Making series of short loud noise) | Backlash more | Correct the back lash either by | |
Replacing gears or housing | |||
Bearing seat loosen | Replace the bearing or replace the housing | ||
Bearing play more | Replace the bearing | ||
Excessive end play | Correct the end play by tightening the Hex retaining nut or replacing spacers/gears | ||
Knocking (Noise of sharp blue) | Dent on the Gear Tooth | Remove the dent by polishing | |
Gear tooth damage | Replace the gear | ||
Foreign matters present | Clean the Gear train and strain the Oil | ||
Insufficient oil | Top up the oil | ||
Detent Lock assy. | Replace detent-retaining spring | ||
Tight Bent in Shifter rod | Replace the shifter rod | ||
Gear tooth battered | Replace the gear | ||
2 | HARD SHIFTING | Sliding Gears tight on shaft | Free the Gears shaft by polishing or by replacing gear/shaft |
Pilot Bearing Jam | Replace the gearing | ||
Excessive Clutch Free Paly | Adjust & correct Free Play | ||
Inter-lock pin tight | Loosen the pin by polishing | ||
Clutch is not disengaging | Adjust & Correct | ||
Incomplete Gear Engaging | Engage Gear fully | ||
Weak Detent Retaining spring | Replace the spring | ||
3 | GEAR SLIPPING OUT | Shifter rod retaining groove worn out | Replace shifter rod |
Gear teeth rounded off | Replace the gear | ||
Worn out / Bent Shifter Fork | Replace the Shifter Fork | ||
Detent balls/ spring stuck | Free & Lubricate | ||
4 | GEAR STICKING | Scoring on Fork | Replace fork |
Clutch not disengaging. | Adjust & correct |
DIFFERENTIAL
S.NO. | TROUBLES | PROBABLE CAUSES | REMEDIES |
1 | HUMMING | 1. Incorrect adjustment of Crown Wheel & Tail Pinion | 1. Re-adjust as per the procedure. |
2. Tooth contact pattern not correct | 2. Correct the tooth contact pattern by doing the adjustment as per the procedure. | ||
2 | NOISE WHILE ACCELERATING | Tooth contact shifted towards thick end | Adjust Tooth Contact pattern as per the procedure. |
3 | NOISE WHILE DE-ACCELERATING | Tooth contact shifted towards thin end | Adjust Tooth Contact pattern as per the procedure |
1. Bevel Pinion tight on Bevel Gear | 1. Correct the gap | ||
NOISE WHILE | 2. Damaged teeth of Bevel | 2. Replace the damaged gear | |
4 | TURNING | 3. Excessive backlash between Bevel Pinion and Bevel Gear | 3. Correct the backlash |
4. Defective axle bearing | 4. Replace the bearing |