Centrifugal Cooling Water Pump
Maintenance / Disassembly and reassembly
A5.05. 09.07.01.00
15000
M20
en / 31.05.2010 IB022205 1/3
09
See also:
Spare parts list: B1.05.09.2.6437
Time requirement: 1 Pers./ 1,00 h
Personnel qualification: skilled engine hand
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Operating medium: Heavy fuel and distillate fuel
Maintenance:
The centrifugal cooling water pump is to be removed and checked for wear every 15,000 hours of
operation.
Auxiliary material:
Molykote paste “G-Rapid Plus” *
Silicon sealing compound “Dirco-Gray” *
* or a product of equal standard
Sequence of operations:
1. Disassembly
1.1 Empty the cooling water system in
the cooling water reservoir.
1.2 Remove pipes from the cooling water
pump.
1.3 Disconnect pump flange from the pump
carrier plate and remove the cooling water
pump (Fig. 1/1) with gear wheel (2) from
the cylinder block and crankcase.
1.4 Loosen the hexagon screw (3) with
the washer (4) and remove the gear wheel
(2) from the shaft (5) with an extracting
device (X).
1.5 Check the tooth surfaces for wear (pitting,
cross bearing, disintegrations).
1.6 Loosen the hexagon nuts (Fig. 2/11)
and take the housing cover (12) with the
impeller (13) out of the spiral housing (14).
1.7 Loosen the impeller nuts (15). Remove the
impeller (13) with an extracting device
from the shaft (5). Observe the parallel key
(16).
1.8 Remove the mechanical seal (17).
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