PROBLEM | POSSIBLE REASON | SOLUTION |
| The shift lever is switched to the difficulty or jerky | Jamming ball gear lever | Replace |
| Jamming hinge rod switch | Replace |
| Bending switching rod | Replace |
| Increased backlash gear lever | Wear sleeve shift shaft | Replace |
| Loose spring ball gear lever | Replace |
| Wear sleeve ball gear lever | Replace |
| Difficulty shifting gears | Bending switching rod | Replace |
| The absence of grease in the switching mechanism | Grease |
| Insufficient oil | Add oil |
| Deterioration of oil | Replace the oil of the required quality |
| Wear or play the plug or switching rod | Replace |
| Worn synchronizer ring | Replace |
| Wear cone synchronizing gear | Replace |
| Loose contact synchronizer ring and gear cone | Replace |
| Increased longitudinal backlash gear | Replace |
| Wear Bearing | Replace |
| Wear fixing synchronizer springs | Replace |
| Excessive bearing preload input shaft | Adjust |
| Incorrectly adjusted guide plate switch | Adjust |
| Spontaneous off gear | Bending switching rod | Replace |
| Wear sleeve shift shaft | Replace |
| Loose spring ball gear lever | Replace |
| Improper installation of traction | Replace |
| Worn shift fork | Replace |
| Wear of the clutch hub | Replace |
| Wear sleeve coupling hub | Replace |
| Wear the gear input shaft | Replace |
| Wear slip surface gears | Replace |
| Wear steel ball locking lever | Replace |
| Loose spring steel ball | Replace |
| Increased stroke gear | Replace |
| Wear Bearing | Replace |
| Loose engine | Tighten |
| Increased noise | Insufficient oil | Add oil |
| Deterioration of oil | Replace the oil of the required quality |
| Wear Bearing | Replace |
| Wear gear output shaft | Replace |
| Wear slip surface gears | Replace |
| Increased stroke gear | Replace |
| Damage to gear teeth | Replace |
| Entry of foreign material between the gears | Replace |
| Damage to the differential gear or stroke increased | Replace |
