- Excavator:
- 320E (S/N: TNJ1-UP; WBK1-UP)
- 320F (S/N: YBM1-UP)
- 323F (S/N: XCF1-UP; YEJ1-UP; LMK1-UP; MDL1-UP)
- 320F (S/N: YBM1-UP)
- Work Tool:
- HYDRAULIC KIT (S/N: HKB1-UP)
Introduction
This special instruction covers the installation procedure for 455-2146 Chassis Wiring Gp on the models and applications listed above.
Safety Section
 | |
| Illustration 1 | g00104545 |
Prevent the machine from movement. Park the machine on a level surface.
Attach a "Do Not Operate" warning tag or a similar warning tag to the start switch or to the controls before you service equipment. These warning tags (Special Instruction, SEHS7332) are available from your Caterpillar dealer.
Required Parts
| 456-2993 Chassis Wiring Gp Revision -00 | |||
|---|---|---|---|
| Item | Qty | Part No. | Description |
| (1) | 19 | 3S-2093 | Cable Strap |
| (2) | 7 | 7K-1181 | Cable Strap |
| (3) | 1 | 456-7904 | Chassis Harness As |
| (4) | 1 | 456-7905 | Valve Harness As |
| (5) | 1 | 456-7908 | Bracket As |
| (6) | 1 | 204-1611 | Cable Strap |
| (7) | 2 | 7I-2673 | Cable Strap |
| (8) | 1 | 8T-4121 | Washer |
| (9) | 1 | 8T-4137 | Bolt |
 | |
| Illustration 2 | g03731067 |
456-2993 Chassis Wiring Gp | |
 | |
| Illustration 3 | g03731068 |
(3) 456-2904 Chassis Harness As (4) 456-7905 Valve Harness As | |
Installation Procedure
- Connect harness (3) "EG-C2" to the cab at position (D) .
 | |
| Illustration 4 | g03731161 |
(EG-C2) Connect to harness (12 poles) Position D: "779 WH", "A464 GY", "P976 BR", "J850 WH", "E404 BU" (2) 7K-1181 Cable Strap (3) 456-7904 Chassis Harness As | |
- Connect "EG-C3" to the "Quick Coupler" hold to run solenoid (lower solenoid).
 | |
| Illustration 5 | g03731069 |
(EG-C3) Connect to "Quick Coupler" hold to run solenoid (lower solenoid): "P976 BR", "235 BK" (EG-C4) Connect to "Quick Coupler" solenoid (upper solenoid): "779 WH", "235 BK" (with yellow tape) (1) 3S-2093 Cable Strap (3) 456-7904 Chassis Harness As (5) 456-7908 Bracket As (6) 204-1611 Cable Strap (7) 7I-2673 Cable Strap (8) 8T-4121 Hard Washer (9) 8T-4137 Bolt | |
- Connect "EG-C4" to the "Quick Coupler" solenoid.
- Connect the GROUND wire to the frame.
- Connect "EG-C1" and "EE-C1"to harness (four poles).
 | |
| Illustration 6 | g03731070 |
(EG-C1) Connect to harness (4 poles): "A464 GY", "J850 WH", "E404 BU", "235 BK" (EE-C1) Connect to harness (4 poles): "A464 GY", "J850 WH", "E404 BU", "235 BK" (EE-C2) Connect to bucket in pressure switch: "A464 GY", "235 BK" (EE-C3) Connect to bucket cylinder head pressure sensor: "J850 WH", "235 BK", "E404 BU" (1) 3S-2093 Cable Strap (2) 7K-1181 Cable Strap (3) 456-7904 Chassis Harness As (4) 456-7905 Valve Harness As (7) 7I-2673 Cable Strap | |
- Connect "EE-C2" to bucket in pressure switch.
- Connect "EE-C3" to bucket cylinder head pressure sensor.