Safe Isolation before overhauling a pump on ship

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The control room circuit breaker put off
Control room circuit breaker put off
Electrical isolation permit should be obtained and Local electrical panel circuit breaker put off
Shut off the suction line as appropriate
Shut off the high pressure discharge line as appropriate
Check via purge cock that there is no pressure inside the pump
Remove the pump from auto start and from priority
Display ‘men at work’ warning board

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