- Underground Articulated Truck:
- AD55 (S/N: ANW)
Description of Change: The new parking brake switch provides improved service life with sealed contacts to prevent corrosion. The new parking brake switch is now available as an option when a push-to-engage application is required. The pull-to-engage application will remain as standard.
Adaptable To: The pull-to-engage 1DE3425 Parking Brake Switch Gp replaces the former pull-to-engage 6DE8934 Parking Brake Switch Gp. The new pull-to-engage 1DE3425 Parking Brake Switch Gp and the new push-to-engage 1DE3269 Parking Brake Switch Gp are effective with AD55 (S/N: ANW366-UP). The 1DE3425 Parking Brake Switch Gp and the 1DE3269 Parking Brake Switch Gp are adaptable to AD55 (S/N: ANW1-365).
Pull-To-Engage 1DE3425 Parking Brake Switch Group
| Parts that are Required in Order to Install the New Pull-To-Engage Parking Brake Switch Gp | ||
|---|---|---|
| Qty | Part Number | Description |
| 1 | 1DE3425 | Parking Brake Switch Gp |
| 1 | 1DE3427 | Plate |
| Service Parts for the Pull-To-Engage 1DE3425 Parking Brake Switch Gp | |||
|---|---|---|---|
| Item | Qty | Part Number | Description |
| 1 | 1DE3268 | Switch As | |
| 1 | 1 | 196-0010 | Knob Kit (1) |
| 2 | 1 | 1DE3264 | Ring (1) |
| 3 | 1 | 1DE3165 | Barrel (1) |
| 4 | 1 | 1DE3427 | Plate |
| 5 | 1 | 6K-6307 | O-Ring Seal (1) |
| 6 | 1 | 1DE3216 | Harness As (1) |
| 7 | 1 | 9EQ2055 | Harness As |
| ( 1 ) | Part of 1DE3268 Switch As |
 | |
| Illustration 1 | g00921511 |
View of the pull-to-engage 1DE3425 Parking Brake Switch Gp (1) 196-0010 Knob Kit (2) 1DE3264 Ring (3) 1DE3165 Barrel (4) 1DE3427 Plate (5) 6K-6307 O-Ring Seal (6) 1DE3216 Harness As (7) 9EQ2055 Harness As | |
Push-To-Engage 1DE3269 Parking Brake Switch Group
| Parts that are Required in Order to Install the New Push-To-Engage Parking Brake Switch Gp | ||
|---|---|---|
| Qty | Part Number | Description |
| 1 | 1DE3269 | Parking Brake Switch Gp |
| Service Parts for the Push-To-Engage 1DE3269 Parking Brake Switch Gp | |||
|---|---|---|---|
| Item | Qty | Part Number | Description |
| 1 | 1DE3268 | Switch As | |
| 1 | 1 | 196-0010 | Knob Kit (1) |
| 2 | 1 | 1DE3264 | Ring (1) |
| 3 | 1 | 1DE3165 | Barrel (1) |
| 5 | 1 | 6K-6307 | O-Ring Seal (1) |
| 6 | 1 | 1DE3216 | Harness As (1) |
| 8 | 1 | 1DE3426 | Plate |
| 9 | 1 | 9EQ2054 | Harness As |
| ( 1 ) | Part of 1DE3268 Switch As |
 | |
| Illustration 2 | g00921512 |
View of the push-to-engage 1DE3269 Parking Brake Switch Gp (1) 196-0010 Knob Kit (2) 1DE3264 Ring (3) 1DE3165 Barrel (5) 6K-6307 O-Ring Seal (6) 1DE3216 Harness As (8) 1DE3426 Plate (9) 9EQ2054 Harness As | |
Removal Procedure for the Former Parking Brake Switch
- Turn the battery disconnect switch to the OFF position.
- Remove knob (2). Discard knob (2) .
 | |
| Illustration 3 | g00921103 |
Typical position of the former parking brake switch (1) Instrument panel (2) Knob (3) Retaining nut | |
- Remove retaining nut (3). Discard retaining nut (3) .
- Remove instrument panel (1) .
- Disconnect harness assembly (6) at plug (7) and receptacle (8) .
 | |
| Illustration 4 | g00921104 |
View of the rear of the instrument panel (4) Contact block (5) Parking brake switch body (6) Harness assembly (7) Plug (8) Receptacle | |
- Remove the following parts: contact block (4), parking brake switch body (5) and harness assembly (6). Discard the following parts: contact block (4), parking brake switch body (5) and harness assembly (6) .
Installation Procedure for a Pull-To-Engage Parking Brake Switch or a Push-To-Engage Parking Brake Switch
- Install harness assembly (4) between 1DE3268 Switch As (2) and receptacle (3) .
 | |
| Illustration 5 | g00921504 |
View of the new parking brake switch installation (1) Instrument panel (2) 1DE3268 Switch As (3) Receptacle (4) Harness assembly. (Refer to note) (5) Ground cable (A) Ground | |
Note: For pull-to-engage parking brake application install a 9EQ2055 Harness As. For push-to-engage parking brake application install a 9EQ2054 Harness As .
- Attach ground cable (5) to the ground bolt at location (A) .
- To install a pull-to-engage parking brake switch. Refer to Illustration 6.
 | |
| Illustration 6 | g00921508 |
View of the pull-to-engage parking brake switch installation (1) Instrument panel (2) 1DE3268 Switch As (6) 1DE3427 Plate (7) 196-0010 Knob Kit (8) 1DE3264 Ring | |
- To install a push-to-engage parking brake switch. Refer to Illustration 7.
 | |
| Illustration 7 | g00921510 |
View of the push-to-engage parking brake switch installation (1) Instrument panel (2) 1DE3268 Switch As (7) 196-0010 Knob Kit (8) 1DE3264 Ring (9) 1DE3426 Plate | |