ABB VM1 - Page 30

30 VM1 Vacuum circuit-breaker | Instruction manual 504/05
Figure 9/25: Slide the contact system over from the arbor onto the
contact arm and allow it to engage there.
34 Contact arm
34.1 Contact system
34.2 Internal tension springs
34.3 Insulating sleeve
39 Arbor
Figure 9/22: Withdrawal of the withdrawable part with circuit-breaker
onto the service truck.
- Service truck engaged with the panel
- Move the sliding handles inwards to disengage
31 Withdrawable part with VM1 circuit-breaker
35.3 Sliding handle
40 Service truck
Figure 9/23: Sevice truck approaching the panel. Align the guide pins
on the load surface with the height adjusters, position the
truck at the panel and allow the catch to engage.
40.1 Height adjuster for the load surface
40.2 Guide pin
40.3 Catch
Figure 9/24: Fit the contact system back-to-front on the thin end of
the arbor and slide it onto the thicker shank area.
334.1 Contact system
39 Arbor
39.1 Journal
40.2
40.1
31
35.3
40
40.3
39.1 39 34.1
34.3 34 34.1 34.2 39
BA 504-05 GB_29102012.indd 30 30.10.12 13:45