GE Entellisys, Инструкция по установке и обслуживанию, Страница: 64 / 80

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Entellisys Low Voltage Switchgear
Chapter 7. Operating the Switchgear
1. Side frame assembly (right) 4. Front shield
2. Side frame assembly (left) 5. Shutters
3. Movable shield assembly 6. Shutter actuator
Fig. 7-10. Entellisys circuit breaker shutter unit (EG-32/40/50 breakers)
Removing an EG-08/16/20-Shutter Unit
To remove these shutter units, proceed as follows:
1. The shutter unit frame is mounted on the vertical
stringers located at each side of the rear of the breaker
compartment. See Fig. 7-9. In extended
compartments, the shutter is mounted to extension
brackets.
2. If it is present, remove the Clamp Circuit, mounted on
the left hand side sheet. Remove the twelve wires from
the two terminal blocks, and then remove the ¼-inch
hex head screws from the enclosure.
3. Take out two 1/4-inch hex head screws on each side of
the frame. A socket wrench with a 3/8-inch driving
head with 4-inch extension will be needed.
4. Carefully remove the entire shutter frame.
5. The frame is then maneuvered forward past the cam
plates on each side, then upward and forward over the
cam pins.
Removing an EG-32/40/50 or Fuse Roll Out
Shutter Unit
To remove these shutter units, proceed as follows:
1. The shutter unit frame is mounted to the vertical
stringers located at each side of the rear of the breaker
compartment. See Fig. 7-10.
2. Take out 11 ¼-inch hex head screws from the frame. A
socket wrench with a 3/8-inch driving head with an 8-
inch extension will be needed. See Fig. 7-10.
3.
Carefully remove the entire shutter frame.
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