Service manual

Removal and Replacement Procedures 5-29
Removal
1.
Shut down the operating system and turn the keyswitch to Off.
2.
At the rear of the cabinet, shut the main circuit breaker off by pushing down
the handle.
3.
Disconnect the system power cord.
4.
From the front of the cabinet, unplug all option power cords from the AC
distribution box.
5.
At the rear of the cabinet (see Figure 5-9), loosen the four screws (two on
each side) attaching the AC distribution box to the cabinet rails.
6.
Slide the AC distribution box from the rear of the cabinet.
Replacement
• Reverse the steps in the Removal procedure.
Verification
Power up the system and check that the main circuit breaker does not trip.