- Wheel Loader
- 938H (S/N: MCC1-UP; MJC1-UP; JKM1-UP; LKM1-UP)
- Wheel Skidder
- 525C (S/N: 5251-UP)
- 535C (S/N: 5351-UP)
- 545C (S/N: 5451-UP)
- 535C (S/N: 5351-UP)
Reference: Refer to Special Instruction, M0073693, "Transmission Assembly Instructions for the First and Third Shaft in the Transmission on Certain C Series Wheel Skidders and 938H Wheel Loaders".
A new first and third shaft in the transmission is now available on the machines listed above. The new 499-1899 Shaft As replaces 173-7439 Shaft As for the first and third shaft in the transmission. The new shaft will provide improved service life.
The new shaft assembly will require 140-8010 Bearing As , 7T-4897 Thrust Disc used on the shaft, and 8E-5157 Bearing Outer Race used in the transmission case. Refer to Table 1 for the required parts.
| Required Parts | |||
|---|---|---|---|
| Qty | Part Number | Part Name | Former Part Number |
| 1 | Shaft As | ||
| 1 | Bearing As | NA | |
| 1 | Thrust Disc | NA | |
| 1 | Bearing Outer Races | ||
Refer to Special Instruction, M0073693 for the assembly procedure of the 499-1899 Shaft As.
The special instruction is available through the normal literature distribution system. The publication can also be found on the Caterpillar Service Information System (SIS).