sign | Probable Cause | Elimination Method |
Vibration, noise | Damage to gearbox mounting and lower frame | Tighten fasteners |
Increased axial play of the shaft | Adjust clearance | |
Worn or damaged gears | Replace | |
Using non-recommended oil | Fill with recommended gear oil | |
Low oil level | Add oil | |
Inadequate idle speed | Adjust idle speed | |
Oil leaks | Damaged O-rings | Replace o-rings |
Difficulty moving gear lever | Faulty control cable | Replace control cable |
Disruption of contact or wear of the conical surface of the synchronizer and gear | Replace | |
Weak synchronizer spring | Replace the synchronizer spring | |
Using non-recommended oil | Fill with recommended gear oil | |
Spontaneous transmission shutdown | Worn shift forks or broken belleville spring | Replace fork or spring |
Excessive synchronizer sleeve clearance | Replace the synchronizer sleeve | |
Worn or damaged gears and/or bearings | Replace gears and/or bearings |