9
Instruction Booklet
IB01900004E
Effective July 2016
Magnum breaker remote
racking device (MRR1000)
EATON
www.eaton.com
Figure 9. MRR1000 operating pendant
Figure 10. Magnum DS position indicator
m
CAUTION
THE MOTOR DOES NOT HAVE AUTOMATIC SHUT-OFF. ONCE THE BREAKER
LEVERING DEVICE REACHES THE END OF ITS TRAVEL, THE MOTOR WILL
CONTINUE TO TURN WHILE THE SHAFT/CLUTCH MECHANISM (FIGURE 11)
WILL COMPENSATE FOR THE INCREASED TORQUE BY SLIPPING BETWEEN
THE SHAFT AND MOTOR. CONTINUING TO OPERATE THE MOTOR FOR AN
EXTENDED PERIOD PAST THE OPERATING LIMITS WILL CAUSE EXCESSIVE
WEAR ON THE CLUTCH AND MAY PREMATURELY SHORTEN THE LIFE OF
THE REMOTE RACKING UNIT.
8.
Withdraw the shaft/motor assembly from the drive socket by
pulling rearward on the handle . If the shaft seems to bind with
the drive socket, utilize the “JOG IN” or “JOG OUT” buttons
described in Step 4 .3 .2 above to free the shaft .
9.
The levering device access door will close . If the door does not
close, the breaker is not fully in the “DISCONNECT” position .
10.
While supporting the weight of the MRR1000, pull out the
locking pin (
Figure 2
) to release the locking handle and rotate
the handle rearward . The unit can now be removed from the
circuit breaker .
m
CAUTION
ALWAYS REMOVE THE REMOTE RACKING DEVICE FROM THE BREAKER
WHEN NOT IN USE.
Figure 11. MRR1000 shaft/clutch mechanism
