IS 6.1
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6.12 SEAWATER PUMP MAINTENANCE
At least once a year check the integrity of the rubber
seawater pump impeller.
Before opening the seawater pump to inspect the
impeller, drainthe seawater from the cooling system
as described in paragraph 6.12.
To access the impeller, remove the cover (ref.1)and
use pliers to extract the impeller (ref.2), pullingit hard
towards the outside.
To refit a new impeller, repeat the operations described
aboveworkinginreverse order.