- Transmission:
- TH55FT-E70 (S/N: PCJ1-UP)
- Petroleum Power Train Package:
- TH55-E70-3512CP (S/N: PNY1-UP)
- TH55FT-E90 (S/N: THE1-UP)
Description of Change: New components are now being used on the Filter Bypass warning harness (269-8146) on certain TH55-E70-3512CP, TH55 FT-E70, and TH55 FT-E90 Transmissions. These new components are more robust and less susceptible to vibration increasing the service life of the original harness and preventing erroneous filter bypass warning signals.
Adaptable To: This change is adaptable too and effective with the following transmission systems:
| Effectivity | ||
| Model | Adaptable Too | Effective With |
| Group 1 | ||
| TH55 FT-E70 | S/N:PCJ300-2759 | S/N:PCJ2760-UP |
| TH55 FT-E90 | S/N:THE300-461 | S/N:THE462-UP |
| Group 2 | ||
| 3512CP | S/N:PNY1-157 | S/N:PNY158-UP |
| Required Parts Group 1 | ||
| Qty | Part Number | Description |
| 2 | 102-8802 | Receptacle Kit |
| 4 | 126-1767 | Connector Pin |
| 2 | 451-4779 | Bypass Switch |
| Required Parts Group 2 | ||
| Qty | Part Number | Description |
| 2 | 102-8802 | Receptacle Kit |
| 4 | 126-1767 | Connector Pin |
| 2 | 451-4779 | Bypass Switch |
Note: 450-1916 Transmission Harness As replaces 308-2996 Transmission Harness As, and contains updated pins and Deutsch connector. May be used with 451-4779 Bypass Switch if harness replacement is required. Harness As. replacement is not required for this replacement.
Rework Instructions
| NOTICE |
|---|
Hydraulic Systems may be pressurized, ensure that pressure has been released before performing the rework procedure. |
Note: Procedure is applicable to the Torque Converter Filter and Transmission Filter.
- Remove 164-7577 Bypass Switch Gp from 333-9310 Oil Filter Base Gp .
Note: The 164-7577 Bypass Switch Gp is lightly preloaded by bypass spool and spring, hold switch securely during removal.
- Install 451-4779 Bypass Switch into 333-9310 Oil Filter Base Gp and torque to 80 ± 10 N·m (59 ± 7 lb ft).
- Remove 155-2261 Plug Lock Wedge, 155-2269 Connector Plug As , and 8T-8730 Connector Sockets from Bypass Switch Wires on 308-2996 Transmission Harness As .
- Install 126-1767 Connector Pins and 102-8802 Receptacle Kit to Transmission and Torque Converter Bypass Switch Wires on 308-2996 Transmission Harness As .
ReferenceRefer to Tool Operating Manual, SEHS9615, "Servicing deutsch connector HD & DT Style Connectors".
- Connect 451-4779 Bypass Switch to Transmission and Torque Converter Bypass Switch Connectors on 308-2996 Transmission Harness As .
- Secure harness assembly to existing clipping points.