Rockwell Automation 1502 Medium Voltage 400A Contactor - Series E - Manual (Page 47)

Rockwell Automation Publication 1502-UM052H-EN-P - June 2013 47
Maintenance Chapter 4
Figure 40 - Gauging Auxiliary Contact Location
6. With the gauge in place, slide the assembly forward until the contact
actuator bottoms out. With the gauge still in place, carefully tighten the
auxiliary assembly retaining nut.
7. When the first nut is tightened, slide out and remove the feeler gauge.
8. Reinstall the green ground wire on the auxiliary assembly retaining bolt.
Install and carefully tighten the second nut.
9. Slowly loosen the top screw of the contactor clamping fixture to remove
the pressure on the armature plate. Loosen the two mounting screws on the
contactor clamping fixture. Remove the fixture.
10. Energize the control circuit in “TEST” mode and exercise the contactor to
verify set-up. Contactor should open and close smoothly and solidly.
IMPORTANT Always use a wrench to hold the bolt head as you tighten the nut. Make sure
the auxiliary assembly does no move as you tighten the nut.
Put feeler gauge here
0.030 in. [0.76 mm]
Auxiliary Actuator Bolt