Hobart Hobart - GPU-600 GPU-600

Check starting current limit functioning

Inspect and clean general (severe duty)

- Check cable connections (internal)

- Check all output contactor contacts

- Check power input contactor contacts

- Check voltmeter & ammeter accuracy

- Check all wiring and connections

- Inspect and clean general (light duty);

- Check fan thermostat operation

a) Turn off the input power at the source. Make sure that the power cannot be inadvertently turned back on.

c) Disconnect the three AC input leads at the terminals on the input contactor and the grounding wire at the grounding lug.

d) Loosen the cable clamp on the rear of the GPU and remove the input cable from the clamp.

e) Disconnect the output cable from the output contactor (+) and the ammeter shunt (-).

f) Loosen the cable clamp at the base and remove the output cable from the GPU.

g) If the unit is a bridge mount unit, also disconnect and remove the remote control cables.

h) If the unit is bridge mount or fixed mount, attach a lifting hoist or forklift to the bottom of the GPU and remove the mounting screws or bolts that attach the GPU to its mounting.