ABB SF6 LTB 245E1 BLG 1002A - 5 Dismantling the Circuit-Breaker Pole; Dismantling the Tripping Mechanisms Pull-Rod

Overhaul Instructions Dismantling the circuit-breaker pole
1HSB435409-201 enrev1 13
5. Dismantling the circuit-breaker pole
The circuit-breaker pole is fitted vertically on an appropriate frame, for example, a
circuit-breaker frame or a frame on the floor of the workshop.
5.1 Dismantling the tripping mechanism’s pull-rod
1. Dismantle the protective cover (8).
2. Measure and note down a reference dimension, e.g. “Y”, so that the opening
spring (5) can be refitted to the same tension using the nut (6) when re-
assembling.
Y=............. mm date................
3. Off-load the springs by loosening the nuts (6, 7)
4. Remove the pin (2).
Figure 5-1. Dismantling the pull-rod.
Item
1 Operating lever
2 Pin
3 Pull-rod
4 Spring housing
5 Opening spring
6 Nut
7 Locking nut
8 Protective cover
9 Bolts M10x25 4 pcs.
Y
7
2
1
3
4
5
6
B10056
9
8