- Off-Highway Truck:
- 789D (S/N: SPD1-UP; SHH1-UP)
- 793D (S/N: FDB1-UP)
Description of Change: An improved torque converter lines group and power train oil lines group are now used on the machines listed above.
The improved torque converter lines group and power train oil lines group each have a new elbow assembly, new connector assembly, and new hose assembly.
The new connector assembly provides better engagement with spool in lockup clutch and synchronizing valve. The new connector assembly increases the performance of the torque converter lines group and power train oil lines group.
Adaptable To: The improved torque converter lines group and power train oil lines group are adaptable to machines and effective in production with machines listed in Table 1.
| Sales Model | Adaptable to Machines | Effective in Production with Machines |
| 789D | S/N:SPD1-628 | S/N:SPD629-UP |
| S/N:SHH1-319 | S/N:SHH320-UP | |
| 793D | S/N:FDB1-1826 | S/N:FDB1827-UP |
Instructions for the 789D
| Required Parts 789D |
|||
| Item | Qty | Part | Description |
| 1 | 1 | 1U-3176 | Connector |
| 2 | 1 | 238-5080 | O-Ring Seal |
| 3 | 1 | 9X-2085 | Elbow |
| 4 | 1 | 214-7568 | O-Ring Seal |
| 5 | 1 | 228-7090 | O-Ring Seal |
| 6 | 1 | 444-3702 | Hose As |
- Prepare the machine for maintenance.
Refer to Operation and Maintenance Manual, "System Pressure Release".
Refer to Operation and Maintenance Manual, "Use of Wheel Chocks".
Refer to Operation and Maintenance Manual, "Cable (Truck Body Retaining)".
Refer to Operation and Maintenance Manual, "Hoist, Torque Converter and Brake Tank Oil - Change" for the correct draining and filling procedure.
- Remove and discard elbow assembly (B) and hose assembly (C) .
 | |
| Illustration 1 | g03682702 |
View of the rear of the torque converter housing (A) Lockup clutch (B) Elbow assembly (C) Hose assembly | |
- Secure connector (1) with O-ring seal (2) to lockup clutch (A) .
 | |
| Illustration 2 | g03682796 |
View of the rear of the torque converter housing (A) Lockup clutch (1) 1U-3176 Connector (2) 238-5080 O-Ring Seal (3) 9X-2085 Elbow (4) 214-7568 O-Ring Seal (5) 228-7090 O-Ring Seal (6) 444-3702 Hose As | |
- Secure elbow (3) with O-ring seal (4) to connector (1) .
Note: Lockup clutch (A) may require removal in order to achieve proper clearance to install elbow (3) .
- Secure hose assembly (6) with O-ring seal (5) to elbow (3). Secure the other end of hose assembly (6) to the available elbow assembly for the lines group.
Instructions for the 793D
| Required Parts 793D |
|||
| Item | Qty | Part | Description |
| 1 | 1 | 1U-3176 | Connector |
| 2 | 1 | 238-5080 | O-Ring Seal |
| 3 | 1 | 8T-6876 | Elbow |
| 4 | 1 | 228-7090 | O-Ring Seal |
| 5 | 1 | 214-7568 | O-Ring Seal |
| 6 | 1 | 455-6780 | Hose As |
- Prepare the machine for maintenance.
Refer to Operation and Maintenance Manual, "System Pressure Release".
Refer to Operation and Maintenance Manual, "Use of Wheel Chocks".
Refer to Operation and Maintenance Manual, "Cable (Truck Body Retaining)".
Refer to Operation and Maintenance Manual, "Hoist, Torque Converter and Brake Tank Oil - Change" for the correct draining and filling procedure.
- Remove and discard elbow assembly (B) and hose assembly (C) .
 | |
| Illustration 3 | g03682722 |
View of the rear of the torque converter housing (A) Lockup clutch (B) Elbow assembly (C) Hose assembly | |
- Secure connector (1) with O-ring seal (2) to lockup clutch (A) .
 | |
| Illustration 4 | g03682852 |
(A) Lockup clutch (1) 1U-3176 Connector (2) 238-5080 O-Ring Seal (3) 8T-6876 Elbow (4) 228-7090 O-Ring Seal (5) 214-7568 O-Ring Seal (6) 455-6780 Hose As | |
- Secure elbow (3) with O-ring seal (4) to connector (1) .
Note: Lockup clutch (A) may require removal order to achieve proper clearance to install elbow (3) .
- Secure hose assembly (6) with O-ring seal (5) to elbow (3). Secure the other end of hose assembly (6) to the available elbow assembly for the lines group.