1VAL050503-MB Rev B Replaces (1VAL057485-MB Rev. C) Oct 2013
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Should maintenance be carried out by the customer’s personnel, responsibility for the interventions remains with the customer.
The replacement of parts not included in the “List of spare parts” must only be carried out by ABB personnel. In particular:
– complete pole with bushings/connections
– EL Actuator and Spring Charging assembly
– Closing Spring set
– Opening Spring
– Shock-Absorber.
Charge the operating mechanism spring and lubricate the right-hand bearing (circuit-breaker seen from the front)
Close the circuit-breaker and lubricate the left-hand bearing detail A below
MAINTENANCE
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