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Rabu, 10 April 2013

Clean Bilge Overboard


The clean bilge overboard pump is used to pump water directly from Clean bilge water tank 18C overboard via the Whitebox.
Before the clean bilge overboard pump can be started to process bilge water overboard we have to ask permission from the on duty officer on the bridge. If we have permission from the on duty officer on the bridge we need a starting time and a starting position to enter in the appropriate log books.

Starting the clean bilge overboard pump



·         Open the main overboard valve. (This valve is normally locked. The key is in the ECR).
·         Open the suction valve of Clean bilge water tank 18C
·         Open the suction valve from Clean bilge water tank 18C to the clean bilge overboard pump
·         Open the suction and discharge valve of the clean bilge overboard pump
·         Open the technical water supply of the OCM
·         Check if the correct inlet valve of 15PS is open(in case of high ppm alarm/recirculation)
·         Check if the Whitebox outlet valve is open
·         Start the Clean bilge overboard pump
·         Check the suction and discharge pressures of the pump
 Check if the Whitebox is operating properly 

Stopping the clean bilge overboard pump

·         Stop the Clean bilge overboard pump by pressing the emergency stop
·         Close the inlet and outlet valve of the clean bilge overboard pump
·         Close the suction valve from the clean bilge water tank 18C to the clean bilge overboard pump
·         Close the suction valve of Clean bilge water tank 18C
·         Flush the OCM for at least 30 seconds
·         Close the technical water supply to the OCM
·         Close the return valve to 15PS
·         Close and lock the overboard valve.
When the overboard valve is closed the bridge needs to be called for a stop time and a stop position.


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