- Track-Type Tractor:
- D7E (S/N: TJA1-UP; MDB1-UP; SCG1-UP; TAN1-UP; LTW1-UP)
ReferenceSpecial Instruction, REHS8574, "Procedure to Install Condenser Fan on Certain D7E Track-Type Tractors".
Description of Change: A new brushless condenser fan in the refrigerant condenser group is now used on the machines listed above. The new condenser fan will enhance the performance of air conditioning system.
Adaptable To:
| New Parts List | |||
| Item | Quantity | Part Number | Description |
| 1 | 1 | 441-0746 | Fan |
| - | 1 | 445-6684 | Wiring Harness |
| - | 1 | 447-8139 | Implement Software Gp |
| - | 5 | 7K-1181 | Cable Strap |
 | |
| Illustration 1 | g03740386 |
New fan (1) replaces the former 166-5816 Fan and 360-4783 Fan in the refrigerant condenser group.
For the procedure to install 441-0746 Fan, refer to Special Instruction, REHS8574, "Procedure to Install Condenser Fan on Certain D7E Track-Type Tractors".
The special instruction can be found on the Caterpillar service information system (SIS) and through the normal literature distribution system at your local Cat dealer.
New 441-0746 Fan is adaptable to machines and effective in production with machines that are listed in Table 2.
| Sales Model | Adaptable to Machines | Effective in Production with Machines |
| D7E | S/N:TJA1-1271 | S/N:TJA1272-UP |
| S/N:MDB1-UP | - | |
| S/N:SCG1-UP | - | |
| S/N:TAN1-1357 | S/N:TAN1358-UP | |
| S/N:LTW1-701 | S/N:LTW702-UP |