Improved Final Drive Bearings Now Used on AD55, AD55B, and AD60 Underground Articulated Trucks {3278, 4001, 4008, 4051}
- Underground Articulated Truck:
- AD55 (S/N: DNW1-UP)
- AD55B (S/N: JNW1-UP)
- AD60 (S/N: KNW1-UP)
Description of Change: Improved final drive bearings now used on the above Underground Articulated Trucks. The improved final drive bearings provide increased service life.
Adaptable To: The improved final drive bearings are effective in production with, and adaptable to the following machines.
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| Machine | Effective With | Adaptable To |
| AD55 | - | S/N:DNW1-UP |
| AD55B | - | S/N:JNW1-UP |
| AD60 | S/N:KNW126-UP | S/N:KNW1-125 |
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| New Part Number | Description | Former Part Number |
| 6Y-9885 | Roller Bearing As | 5D-3632 |
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 | |
| Illustration 1 | g03728956 |
(1) 6Y-9885 Roller Bearing As | |
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