Usage:
793B (1HL) Off-Highway Trucks
Description of Change: Wiring group now connects on roll over protection system (ROPS) tube to improve engine removal and installation time.
Adaptable To: The 115-6478 Wiring Group (not serviced) is effective with 793B (1HL195-Up). The wiring group is adaptable to all previous 793B (1HL1-194) by using the following procedure.
Illustration 1. View of 115-6478 Wiring Group.
Illustration 2. View of 115-6478 Wiring Group, Cab (5).
Procedure To Re-Work Wiring Group
NOTE: Turn off and lockout disconnect switch before beginning procedure.
1. Disconnect the negative (-) battery cable lead from the batteries in the right platform battery compartment.
2. Disconnect the positive (+) battery cable lead from the batteries in the right platform battery compartment.
3. Disconnect existing 118-8486 Harness Assembly (payload monitor) (1) from the 118-5266 Harness Assembly (main).
4. Disconnect existing 118-5266 Harness Assembly (main) from left side of cab bulkhead and remove from chassis.
NOTE: This harness connects to the batteries, ether aid relay and solenoid, right engine work lamps, and connects to 118-8486 Harness Assembly (payload monitor) (1).
5. Connect 115-7504 Harness Assembly (4) at the cab bulkhead and reattach harness to chassis with existing "P" clips. [The harness should end at the farthest right side boss of the roll over protection system (ROPS) tube].
NOTE: This harness connects to the ether aid relay and solenoid, right engine work lamps, and connects to 118-8486 Harness Assembly (payload monitor) (1).
6. Connect 117-7129 Cable Assembly (2) to the negative (-) post of the battery and re-attach to chassis in same position using existing clips.
7. Connect 118-5483 Cable Assembly (3) to the positive (+) post of the battery and re-attach to chassis in same position using existing clips.
8. Connect the other end of 118-5483 Cable Assembly (3) to the end of 115-7504 Harness Assembly (4) at the clip assembly under the roll over protection system (ROPS) tube and secure.
9. Reconnect the 118-8486 Harness Assembly (payload monitor) (1).
10. Check that all connections are secure and properly fastened to the chassis.