TM 9-4120-403-14
Inspection
(1)
Check that parts are in place and that wires move freely in cable.
(2)
Check that all screws in clamps and end fittings are tight.
Adjustment
(1)
Move circuit breaker to "ON" position.
(2)
Loosen two clamp screws.
(3)
Push and hold knob in rear of panel all the way in and hold it before making adjustment.
NOTE
Knob must be held in. Adjustment is critical
(4)
Position sleeve end .12 to .25 inches below bottom clamp.
NOTE
Actuator arm must be vertical while adjusting.
(5)
Position bottom end core fitting .12 to .25 inches below actuator plate.
(6)
Position top core end fitting flush with actuator plate.
(7)
Move circuit breaker to "OFF" position. Be sure actuator plate does not touch sleeve end.
Repair
(1)
Remove knob, lockwasher and nut from cable.
(2)
Remove two screws, washers, and clamps.'
(3)
Loosen two screws and remove two core end fittings.
(4)
Remove two nuts and actuator plate from actuator arm.
(5)
Remove shaft and actuator arm from circuit breaker.
(6)
Install shaft and actuator arm in circuit breaker.
(7)
Secure actuator arm to actuator plate with two nuts.
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