Cooling Water Pump; Assembly - Diesel WARTSILA F 240 Manual

Manual
F 240
1. Disassembly
Ver. 01
COOLING WATER SYSTEM
7F

COOLING WATER PUMP

If oil and / or water is seen to run out of the leak indicator F, all sealing rings have to
be renewed.
1. 1. Remove the suction and delivery pipe from the pump.
1. 2. Remove the pump casing.
1. 3. Slacken the nut for impeller attachment one full turn.
1. 4. Remove the pump from the gearbox.
1. 5. Remove the inner circlip A.
1. 6. Dislodge the impeller from its cone by tapping the nut with a hammer and
support the backside of the impeller. If the impeller is not coming loose, warm
up the impeller till approx. 120
1. 7. Unscrew the nut completely and withdraw the impeller, (and if applied the
key) the sliding ring seal B and pump shaft with bearings.
1. 8. Withdraw the oil sealing ring C and the ceramic stationary seal ring D from
the pump bracket.
1. 9. If the inner ring E of the pump shaft shows wearing grooves, it must be re-
newed.
Release the inner ring by heating it to approx. 200
Remove all the residual loctite from the pump shaft.
1. 10.Inspect the double--ball angular contact bearing and the single ball bearing.
In most cases they shall have to be renewed.
A
O--ring
o
C.
pump casing
E
C
F
o
C.
D
B
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