GE Gerapid 2607 User Manual page 44

4b
4
6
5a
7
8
10
Fig. 50 Changing arcing contact.
44
4a
5
6a
9
Design and specifications are subject to change without notice
6.2.2. Maintenance of contact system (before 11/2003)
Pay attention to the warnings, Section 1!
This section is valid for breakers manufactured
before 11/2003.
This section refers to maintenance works A, B, C from Ta-
ble 4.
A) Remove the arc chute and adapter
•
See 6.2.1-A/B.
C) Changing the protective walls and arc runners
•
[Fig. 48]. Pull out two protective walls (3).
•
[Fig. 50]. Loosen screws (6a) with Torx® 30 and take
out f ront wall (6).
•
[Fig. 50]. Loosen screw (5a) with tool (SW5).
•
[Fig. 50]. Take out the front arc runner as it' s shown.
•
[Fig. 50]. Take out the back arc runner (4) by loosening
two screws (4a) with tool (SW5). Don't remove the pro-
tective cap (4b).
•
[Fig. 50]. Install new front-arc runner (5) and new
back-arc runner (4). Tighten it using torque of 10 Nm
[88 in-lbs].
•
[Fig. 50]. Install front wall (6) and adjust it by position-
ing the protective wall (3) [Fig. 48]. Tighten it using
torque of 10 Nm [88 in-lbs]
•
[Fig. 48]. Put in two new protective walls (3).
Fig. 51 Taking out the front arc runner of old design
S47183e rev.03 2009-09-02