TM 5-3810-300-24&P-3
5.1 WATER PUMP
3. Remove the impeller and seal assembly from the
pump body.
4. If the steel insert is worn or scratched excessively,
tap or press it out of the pump body.
5. Remove the water slinger from the shaft.
6. If the impeller was pinned to the shaft remove the
sheared taper pin from the shaft and impeller by tapping
against the small end of the pin with a punch and
hammer.
7. If necessary, remove the pump drive coupling from
the shaft with tool J 1930 as shown in Fig. 5.
Inspection
Clean all of the parts except the shaft and bearing
assembly. The sealed type pump shaft bearing must not
be immersed in a cleaning fluid since dirt may be
washed in and the fluid cannot be entirely removed.
Revolve the pump shaft bearing slowly by hand. If rough
spots are detected, replace the shaft and bearing
assembly and seal assembly.
A water pump
Fig. 3 - Loosening Inner Water Pump-to-Blower
reconditioning kit includes a shaft and bearing assembly.
Attaching Bolt with Tool J 4242
Examine the impeller and seal components for wear, and
and pump body. If the impeller is pinned to the shaft
replace them if necessary. The seal is
considerably more pressure will be required to shear the
pin.
Fig. 4 - Pressing Water Pump Shaft from Impeller
Fig. 5 - Removing Water Pump Drive Coupling from
Shaft with Tool J 1930
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