GE Industrial Solutions EntelliGuard G - Manual (Page 14)

EntelliGuard® G Circuit Breaker DEH-41304C
Section 3 – Lifting, Mounting and Installation 13 March 14
14 ©2012 General Electric All Rights Reserved
Figure 3.7. Circuit Breaker Lifting
3. Remove any padlocks and keep the key in place for key
locks if applied from the racking panel of the cassette.
4. Ensure the cassette position indicator shows
DISCONNECTED and the racking handle is disengaged.
5. Ensure the cassette racking cams on both side walls of
the cassette are in the completely racked out position
as shown in Fig. 3.8.
Figure 3.8. Racking Drive in the DISCONNECTED Position
6. Pull out the cassette rails until they drop into the
horizontal locked position.
7. Lower the circuit breaker gradually so that the rollers
drop over the rails. Ensure the grooves in all rollers
straddle the rails as shown in Fig. 3.9.
Figure 3.9. Circuit Breaker Rollers Straddled on the
Loading Rails
8. Using the hand grips on either side, remove the lifting
bar and push the circuit breaker into the cassette until
it reaches a positive stop (the rollers on circuit breaker
are engaged with the racking cams of the cassette on
both sides). The circuit breaker is now in the
DISCONNECTED position (Fig. 3.10).
Figure 3.10. Circuit Breaker in Disconnected Position.
9. Push back both the extended rails of the cassette to the
stowed position.
10. If the circuit breaker is ON and the springs are charged,
press the OFF button on the circuit breaker fascia and
ensure the circuit breaker contacts are open (Fig. 3.11).
Figure 3.11. Setting the Circuit Breaker to OFF
11. Remove the racking tool from the storage location on
the cassette front panel by grabbing the handle (Fig.
3.12).
Figure 3.12. Racking Handle Storage Location
12. Pull out the torque bar from inside the handle and
extend (Fig. 3.13).
Figure 3.13. Racking Handle Extended