Siemens NXAIR P Instructions For Installation, Operation And Maintenance page 77

19 Maintenance of 3AK1 Circuit Breaker
19.1 Circuit Breaker Maintenance - General Information
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HVWDEOLVK VXFK D SURJUDP A preventive maintenance pro-
gram is not intended to cover reconditioning or major
repair, but should be designed to reveal, lf possible, the
need for such actions in time to prevent malfunctions dur-
ing operation.
19.2 Recommended Maintenance and Lubrication
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