Welding on Machine

T147681B-UN-26NOV01

1 - Chassis Control Unit (CCU)

2 - Transmission Control Unit (TCU)

3 - Engine Control Unit (ECU)

4 - Battery Balancer

IMPORTANT: Disconnect battery ground strap or turn battery disconnect switch to OFF to prevent voltage spikes through alternator or monitor.

To prevent voltage spikes through microprocessors, disconnect harness connectors from the following controllers:

• Chassis Control Unit (CCU) (1)
• Transmission Control Unit (TCU) (2)
• Engine Control Unit (ECU) (3)
• Battery Balancer (4)
• Monitor Display Unit (MDU)

Connect welder ground clamp close to each weld area so electrical current does not arc inside any bearings.