ABB SGF, Instruction Manual

Page: 53 / 156

13.2 Separate Mounting
In case of separate mounting of operating mechanism for earthing switch, the mounting steps are
dependent on measurement m3 of operating shaft (43) Figure 39, Figure 40 and on a possible
offset of operating mechanism and earthing switch Figure 42 :
• Separate mounting if measurement m3 < 6 m
• Separate mounting if measurement m3 = 6 ... 12 m
• Separate mounting laterally offset with measurement m1 (max. 4 m)
Note :
Make sure that the operating mechanism is in the ON position (as-delivered state). If the
operating mechanism is in the OFF position, set it to the ON position using the emergency hand crank
(39). The disconnector pole must be in the OFF position.
Note :
If a manual operating mechanism is envisaged for the earthing switch, ensure when mounting
that there is sufficient clearance for the operating lever (367) of the operating mechanism Figure 38.
Mounting steps
1. Unpack operating mechanism (77)
2. Mount pivot bearing (42) on disconnector base (2) Figure 38
3. In case of laterally offset operating mechanism : Mount pivot bearing (42) in the envisaged
position.
4. If measurement m3 = 6 ... 12 m : Mount additional pivot bearing in the envisaged positions
5. Insert operating shaft (43) through the pivot bearing Figure 38
6. If measurement m3 = 6 ... 12 m : Insert individual parts of operating shaft (43) through the pivot
bearings
7. Vertically align operating mechanism by operating shaft (43) and mount
8. Calculate required length of operating shaft Figure 39, Figure 40
9. Remove operating shaft agains and shorten to suitable length
10. After shortening, coat intersection surface with the paint supplied
11. Grease thrust bearing (330), inside, and collared bush (331), outside, with silicone grease
Figure 38
12. Report operating steps 5. and 6., threading thrust bearing (330) and collared bush (331) in
correct sequence onto the operating shaft
Figure 38
13. If measurement m3 = 6 ... 12 m : Connect individual parts of operating shaft to coupling parts
(334, 335)
Figure 38
14. Tighten operating mechanism and pivot bearing
15. Connect shaft end of operating mechanism and operating shaft (43) to coupling parts (334,
335)
Figure 38
16. Mount operating lever (76) on upper end of operating shaft (43) Figure 43, Figure 44
17. If operating mechanism laterally offset : Calculate required length of operating rod (83) and
suitably shorten operating rod
Figure 42 (Detail)
18. If operating mechanism laterally offset : Connect operating rod (83) to operating lever (76) and
offset bearing (376)
Figure 42
19. If operating mechanism laterally offset : Drill hole through operating rod (83) ( 13 mm - H12)
Figure 42 (Detail)
20. If operating mechanism laterally offset : Grease bore hole with silicone grease and drive home
stainless clamp sleeve (152)
figure 42 (Detail)
21. Next Ste p : Chapter 14 : Mounting of Earthing Switch
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