- Mini Hydraulic Excavator:
- 302.5C (S/N: GBB1-UP)
The routing of the wiring harness has been changed in production. The harness was previously routed through the machine to the solenoid valve. The harness is now routed from the solenoid valve through the machine. This new routing will ensure enough slack in the harness at the solenoid connections.
Previously, it was possible to route the harness without leaving slack at the solenoid connection. This may result in failure of the electrical circuit and the boom swing function.
In order to prevent contamination from causing failure of the solenoid valve, a filter screen has been added to the pressure connection of the solenoid valve. A new part number has been created in order to replace the former tee assembly in the pilot lines group.
 | |
| Illustration 1 | g01622986 |
Location of Tee Assembly in Pilot Lines Group (1) Valve Group (2) Tee Assembly | |
| Required Parts | ||
|---|---|---|
| Model | Former Part | New Part |
| 302.5C | 148-8439 | 322-9001 |
| Effectivity and Adaptability of the Harness Routing and Tee Assembly | ||
|---|---|---|
| Model | Effectivity | Adaptability |
| 302.5C | S/N:GBB4229-UP | S/N:GBB1-4228 |