448-8937 4488937 Chassis Main Harness for 390FL Excavator

Preparation and Safety:
Park the machine on a level, solid surface. Lower the work equipment completely to the ground.
DISCONNECT THE NEGATIVE (-) BATTERY CABLE(S) to prevent short circuits and electrical shocks.
Clean the work area around the undercarriage and upper structure to prevent contamination.

Removal of the Old Harness (if applicable):
Carefully label or photograph the routing of the existing harness and the location of all connectors.
Disconnect all electrical connectors at the undercarriage components (travel motors, solenoids).
Disconnect the main multi-pin connector(s) at the swing bearing passage.
Remove any cable ties, clamps, or brackets securing the harness.
Gently pull the harness out, taking care not to damage any surrounding components.