Inspection & Maintenance
4.7 Maintaining the main contact system
3WJ Air Circuit breakers
184 Operating Instructions, 12/2022, L1V30828903001-01
Removing the arc chutes
1. Loosen the fixing screws
2. Remove the arc chutes
Disconnecting the contact carriers
• Unscrew and remove the locking bolt.
• Remove the coupling bolt by means of a screwdriver (as shown).
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