Utility Relay Company AC-PRO AKR-30, Instructions Manual

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AC-PRO Retrofit................................................................................... AKR-30/50
Page 8
8.3 Verify Trip Free Operation of Mechanical Reset
Actuator Assembly
It is very important to verify that the trip adjustment of the
mechanical reset actuator assembly will keep the breaker trip
free if the actuator fails to reset properly on breaker opening.
1) Close the breaker. Trip the actuator using 18 volts (two 9
volt batteries in series.) (The Red wire is “+”).
2) With the reset spring not connected to the breaker the
actuator should not reset.
3) With the actuator still tripped, attempt to close the
breaker, it should trip free.
IMPORTANT: WHEN THE ACTUATOR IS IN THE TRIP POSITION (NOT
RESET), THE BREAKER MUST TRIP FREE.
8.4 Adjust Reset of Mechanical Reset Actuator Assembly
Refer to Figure 8 for the following:
1) With the breaker open, attach one end of the reset spring
to the breaker arm. Attach the other end of the spring to
BR-1A086 Reset Lever. This should reset the actuator. The
spring should be extended approximately 1/4 inch. If this
does not reset the actuator, loosen the two (2) 10-32
screws holding the actuator to the base plate and slide the
actuator toward the reset lever. If the actuator position
is changed, re-adjust the position of the hex standoff as
outlined in Section 8.2 and verify trip free operation as
outlined in Section 8.3.
2)
Close the breaker and trip the actuator using 18 volts (two
9 volt batteries in series.) (The Red is “+”). The breaker
should open and the linkage should reset the actuator.
Cycle the breaker several times to verify reliable trip and
reset operation of the actuator.
IMPORTANT: The Actuator may not trip using just one 9 volt
battery. To insure that the actuator will trip use
two fresh 9 volt batteries in series.