Rockwell Automation Publication 1512A-UM101B-EN-P - December 2021
57
Chapter 5 Maintenance
10. If the contactor is being replaced with a new one, move the contactor
interlock lever to the new contactor.
11. To reinstall the contactor, reverse the procedure. Make sure the
mounting bolts (11 lb•ft [14.5 N•m]), power cable hardware (45 lb•ft
[61 N•m]), and bus bar hardware (45 lb•ft [61 N•m]) is properly torqued.
12. Adjust the contactor interlock rod according to the Contactor Interlock
Rod Adjustment procedure. Refer to
Contactor Interlock Rod
Adjustment
1. Open the medium voltage door. Use the Door Interlock Circumvention
Door Interlock Circumvention on page 48
) to move
the isolation switch handle halfway between the OFF and ON position
(see
). Keep the handle in this position until the adjustment
procedure is completed.
2. With the contactor in the OFF position, insert a 1.5 mm (0.060 in.) feeler
gauge in the gap between the interlock lever and the isolation switch
operating lever. The gap must be between 1.0…2.0 mm (0.039…0.078 in.).
ATTENTION:
The contactor weighs approximately 100 lb (45 kg) and
assistance may be required to safely remove it from the cabinet and
transport it. Failure to use caution when moving the contactor may
result in equipment damage and/or personal injury.
ATTENTION:
To avoid shock hazards, lock out incoming power (refer
Power Lock-out Procedure on page 49
) before working on the
equipment. Verify with a hot stick or appropriate voltage measuring
device that all circuits are voltage free. Failure to do so may result in
severe burns, injury, or death.
