| Standard Hours | Manufacturer Warranty Hours | Skill Level | Notes |
| Replace |
| 241, 243 |
| Complete Assemlby Without Transfer of Parts | 1.3 | 0.0 | B | |
| Note |
| With Skid Plate, Renew | 0.4 | 0.0 | B | |
| Complete Assembly With Transfer of Parts | 1.8 | 1.3 | B | |
| Note |
| With Skid Plate, Renew | 0.4 | 0.2 | B | |
| 1370, 4401 & 4470 |
| Complete Assembly Without Transfer of Parts | 1.9 | 0.0 | B | |
| Note |
| With Skid Plate, Renew | 0.4 | 0.0 | B | |
| Complete Assembly With Transfer of Parts | 2.7 | 1.9 | B | |
| Note |
| With Skid Plate, Renew | 0.4 | 0.2 | B | |
| Overhaul/Rebuild |
| 241, 243 | 4.6 | 3.2 | A | |
| Note |
| With Skid Plate, Renew | 0.4 | 0.2 | A | |
| 1370, 4401 & 4470 | 5.9 | 4.0 | A | |
| Note |
| With Skid Plate, Renew | 0.4 | 0.2 | A | |