Disconnecting The Making And Breaking Units; Reconditioning The Movable Contact System - GE GL 311 F3/4031 P/VE Operating Instructions Manual

R
ECONDITIONING
10.1.4

Disconnecting the Making and Breaking Units

10.1.5

Reconditioning the Movable Contact System

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• Remove the cotter pins (10) and flanged coupling pins (9) from
the two guide levers. We recommend tool T101 for removing the
cotter pins.
• Pull the interrupter unit out of the movable contact system.
5 Interrupter unit
6 Movable contact system
8 Guide lever
9 Flanged coupling pin, 6x24
10 Cotter pin, 8x1.2
• Replace the arcing contact pin (29). Lubricate the contact
surfaces per lubrication specification L6. Tighten the screw (30) to
a torque of 25Nm.
• Replace the guide strip (11). The guide strip is located in a
dovetail groove. It is therefore necessary to overcome
mechanical resistance when replacing it.
• Lubricate the outer diameter of the movable contact system in the
area of the electrical sliding contact surface per lubrication
specification L6.
L6 L6
29
11 Guide strip 3x5x398
15 NLX8 Nordlock washer
29 Arcing contact pin
30 Socket head cap screw, M8x20 A-70
OI 250 (EN)
6
5
L6
11
15
30
9
8
10
1x
1x
2x
4x
4x
1x
1x
1x
1x
REV7
/REV7