Complaint | Symptom and possible causes | Remedy |
Noisy shaft drive | Noise seems to come from secondary bevel gear and final bevel gear assemblies. | |
1. Oil level too low | Refill. (Check oil jet./Replace oil seal.) | |
2. Drive and driven bevel gears damaged or worn | Replace. | |
3. Excessive backlash | Adjust. | |
4. Improper tooth contact | Adjust. | |
5. Damage to bearings | Replace. | |
Noise seems to come from propeller shaft area. | ||
1. Propeller shaft universal joint damaged | Replace. | |
2. Propeller shaft splines damaged or worn | Replace. | |
3. Insufficient lubricant | Refill. (Replace oil seal.) | |
4. Cam dog contacting surface damaged or worn | Replace. |