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Rockwell Automation 1512A MV Controllers, 400A One-High Cabinet, Standard and Arc-Resistant Enclosure User Manual

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Rockwell Automation Publication 1512A-UM100F-EN-P - May 2013

Chapter 5

Maintenance

1. Remove the two 1/4-20 self-tapping screws from the Z-clip and remove

the Z-clip from the edge of the MV door.

Figure 62 - Z-clip Assembly

2. Loosen the two door locking bolts.

3. Use a flat-headed screwdriver to turn the defeater pin on the right side of

the isolation switch handle.

Figure 63 - Defeater Pin

4. Open the power cell door.

If it is possible to move the isolation switch handle to the OFF position for
reassembly, follow steps 5-10.

Remove 1/4-20

self-tapping screws

Handle Pin

Remove Z-clip

Defeater Pin