Chapter 4 TPD1327E
Page 24
How to check the impeller of the raw
water pump
1. Ensure that the seacock is closed.
2. Release the six screws (B1) which fasten the
end plate of the raw water pump and remove the
plate. When the end plate of the raw water pump
is removed, some raw water will ow from the
pump.
3. Remove the impeller (A1), remove the rubber
end cap (A2) and then pull the impeller from the
shaft.
4. Clean the contact surfaces of the pump body and
the end plate.
5. Inspect the rubber impeller for excessive wear or
for damage and renew it, if necessary.
6. Apply Castrol Spheerol SX2 grease to the blades
of the new impeller and t the impeller into the
housing with the blades bent clockwise (A3). Fit
the rubber end cap.
7. Apply jointing compound to a new joint and t it
to the body with the wide area of the joint over
the eccentric plate (A4) in the body. Fit the end
plate and tighten the end plate screws.
8. Open the seacock.
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