ABB VD4 Series Instruction Manual - page 29
Figure 7/1: Before moving the front plate, first disconnect the link rod 54.1 at the lower point and swing it to one side. Turn the hand crank anti-clockwise first to move
the interlock yoke 51 an appropriate distance away
Figure 7/2: Auxiliary switches for interlocking withdrawable part and switchgear panel (withdrawable part in service position)
Figure 7/3: The spring-loaded operating mechanism in the frame of the withdrawable part, front cover plates removed
50.6
Cover plate, right hand side
50.7
Cover plate, left hand side
51
Interlock yoke
54
ON-OFF operating shaft
54.1
Link rod
51
54.1
50.6
50.7
10.4
51.3 10.5
54
51
10
10.2
10.1
54
55.33
55.8
55.30
55.36
55.6
55.5
55.4
54.1
55.3
55.2
45
55.35
55.34
45
Magnet holder, complete
54.1
Link rod
55.2
ON push rod
55.3
OFF push rod
55.4
Switch position indicator
55.5
Operating cycle counter
55.6
Socket for charging lever
55.8
Charging condition indicator
55.30 Drive shaft
55.33 Drum with spiral spring
55.34 Chain
55.35 Ratchet wheel
55.36 Charging motor
10 Control wiring plug connector,
closed
10.1 Control wiring socket
10.2 Control wiring plug
10.4 S8, limit switch for test position
indicator
10.5 S9, limit switch for service
position indicator
51 Interlock yoke
51.3 Guiding rail (panel)
54 ON-OFF operating shaft
VD4 Vacuum Circuit-breaker | Maintenance 29
Figure 7/1
Figure 7/2
Figure 7/3