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38
Failure to maintain the equipment can result in death, serious injury, property damage or product
failure, and can prevent successful functioning of connected apparatus.
The instructions contained herein should be carefully reviewed, understood and followed.
The maintenance tasks in Table 1 must be performed regularly.
Inspection items and tests
Primary-power path checks
Cleanliness check
Inspection of primary disconnects
Stored-energy operator-mechanism checks
Maintenance and lubrication
Fastener check
Manual-spring charging check
Contact-erosion check
Electrical-control checks
Wiring and terminals checks
Secondary-disconnect check
Automatic spring-charging check
Electrical close and trip check
Vacuum-integrity check
High-potential test
Insulation test
Contact-resistance test
Inspection and cleaning of circuit breaker insulation
Functional tests
Table 1: Maintenance tasks
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