TP-6953 7/19 111Section 6 Cooling System
1
1. Seawater pump
2. Pulley
3. Ball bearing
4. Seal
5. Ceramic seat
6. Impeller
7. Gasket
8. Cover plate
9. Key
2
3
4
5
6
8
7
9
Figure 6 -19 Seawater Pump, Typical
6. Remove the impeller.
7. Inspect the impeller for damage, including cracks,
broken or flattened vanes. See Figure 6-20. The
impeller vanes should be straight and flexible.
1
2
3
1. Flattened vane
2. Crack
3. Broken vane
607153
Figure 6 -20 Worn Impeller
8. Lubricate the impeller with soapy water before
installation.
9. While installing the impeller, always rotate the drive
shaft and the impeller together in the same
direction as the engine rotation.
10. Inspect the coverplate and gasket for corrosion
and/or damage. Replace components as
necessary.
11. Lubricate the gasket withsilicongreaseandattach
the gasket and coverplate to the seawater pump
housing.
12. Open the seacock.
13. Check that the generator set is OFF.
14. Reconnect the generator set engine starting
battery, negative (- ) lead last.
15. Reconnect the power to the battery charger, if
equipped.
16. Start the generator set and check for leaks.
17. Stop the generator set and repair leaks or replace
components as necessary.
6.8 Belt Tension
Accidental starting.
Can cause severe injury or death.
Disconnect the battery cables before
working on the generator set.
Remove the negative (- ) lead first
when disconnecting the battery.
Reconnect the negative (- ) lead last
when reconnecting the battery.
WARNING
Disabling the generator set. Accidental starting can
cause severe injury or death. Before working on the
generator set or equipment connected to the set, disable the
generator set as follows: (1) Press the generator set off/reset
button to shut down the generator set. (2) Disconnect the
power to the battery charger, if equipped. (3) Remove the
battery cables, negative (- ) lead first. Reconnect the negative
(- ) lead last when reconnecting the battery. Follow these
precautions to prevent the starting of the generator set by the
remote start/stop switch.
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