Rockwell Automation 1503 OEM Starter Frame Components Installation Manual - Manual (Page 39)

1503-IN050E-EN-P – June 2013
Adjustments 3-5
To avoid shock hazards, lock out incoming power (see
page 3-2) 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.
1) Complete the Power Lock-out Procedure (see Page 3-2).
2) Open the medium voltage door. Use the Door Interlock Circumvention
procedure described on page 3-1 to move the isolation switch handle
halfway between the OFF and ON position (see Figure 3.6). Keep the
handle in this position until the adjustment procedure is completed.
3) With the contactor in the OFF position, insert a 0.050 in. (1.3 mm)
feeler gauge in the gap between the interlock lever and the isolation
switch operating lever. The gap must be between 0.045 in. to 0.060 in.
(1.1 mm to 1.5 mm).
4) To reduce the gap distance, follow steps 5-7.
To increase the gap distance follow steps 8-10.
Contactor Operating Lever
Contactor Interlock Rod
Stop Bracket
Interlock Lever
Isolation Switch Operating Lever
Isolation Switch Handle
at Halfway Position
Nylock Nut
Gap
(0.03 in. to 0.78 in.)
(1.00 mm to 2.0 mm)
Figure 3.6 – Isolation Switch Handle Adjustments
Contactor Interlock Rod
Adjustment
A T T E N T I O N A T T E N T I O N