Rockwell Automation 1494V-M70_M7_M72 Variable Depth, Flange Operated Circuit Breaker Operating Mechani - Manual (Page 14)

Testing of Circuit Breaker
“ON” Position
“OFF” Position
“RESET” Position
1. Move defeater lever down and move handle to the ON position.
2. If the circuit breaker does not turn “ON”, loosen (2) screws on toggle adjustment plate.
3. Move toggle adjustment plate toward line terminals.
4. Tighten the (2) toggle adjustment plate screws to torque value in table above.
5. If the circuit breaker still can not be turned “ON”, return handle to the OFF position.
6. Unhook spring, remove hitch pin and separate connecting rod from handle link.
7. Turn connecting rod one full turn clockwise.
8. Reattach connecting rod and handle link, hitch pin and spring.
9. If the circuit breaker still can not be turned “ON”, repeat Steps 6, 7 and 8 if necessary.
1. Manually trip the circuit breaker while in the “ON” position.
2. Move handle to the “OFF” position to reset.
3. If circuit breaker does not reset, unhook spring, remove hitch pin and separate connecting rod from handle link.
4. Adjust connecting rod by turning it clockwise 1-2 turns and then retest.
5. Repeat steps 1-4 until circuit breaker resets.
6. Verify that the circuit breaker can be turned “ON”, “OFF” and “RESET” following the steps above.
NOTE: Twisting of the bail mechanism is acceptable when the handle is in the full “ON” or full “OFF” position.
1. Move handle to the “OFF” position.
2. If the cirucit breaker does not turn “OFF”, unhook spring, remove hitch pin and separate connecting rod from handle link.
3. Turn connecting rod one full turn clockwise.
4. Reattach connecting rod and handle link, hitch pin and spring and then retest.
5. If the circuit breaker still can not be turned “OFF”, repeat steps 2, 3 & 4.
Variable Depth, Flange Operated Circuit Breaker Mechanisms 14
Publication 1494V-IN105E-EN-P - September 2014 PN-242292 DIR 10000787413 (Version 04)
8
Connecting Rod
Hitch Pin
Spring
Defeator
Lever
Toggle Adjustment Plate
Handle Link
40 - 60 lb-in
23 - 37 lb-in
140G / MG-N
140G / MG-M
140G / MG-K
140G / MG-G, H, I, J
L
L