To Dismantle The Separate Bearing Type Pump; To Dismantle The Combined Bearing And Shaft Type Pump; To Dismantle Earlier Type Pumps - Perkins 4.108 Workshop Manual

COOLING SYSTEM-M.2
M2
To Dismantle the Separate Bearing Type
Pump (Fig. M.3)
NOTE: On later pumps items 4, 5,
10
and 11 are no
longer fitted and a longer distance piece has been
introduced to accommodate the removal of the seal
retaining flange (4).
1. Where necessary remove the pulley circlip (14)
and using a suitable puller, remove the pulley (1)
as shown in Fig. M.2. Make a note of the position
of any pump securing setscrew that has been
trapped in its location by the pulley.
2. Using a suitable adaptor that will pass through the
Ii
M4
2
0.000/0.006
in
(0,00/0,15
mm)
7 6
3
bearings, press out the shaft (8) through the rear
of the pump complete with the impeller (6)
counterface (7), seal (9) and thrower (10).
3. Press the impeller from the shaft and remove the
counterface, seal and thrower.
4. Hemove the bearing circlip (13) and using a suit-
able adaptor, press the bearings (12) and distance
piece (2) out through the front of the body (3).
5. Remove the seal retaining flange (4), felt seal (11)
and seal retainer (5).
To Dismantle the Combined and
Shaft (
Using a suitable puller, remove the pulley (1), as
shown in Fig. M.2. Make a note of the position of
any pump securing setscrew that has been trapped
in its location by the pulley.
2. Remove the clip (7) through the aperture in the
pump body (2).
3. Press the bearing and shaft assembly (8) out
through the rear of the pump complete with the
impeller (3), counterface (4), seal (5) and
thrower (6)
4. Press the impeller from the shaft and remove the
counterface, seal and thrower.
To Dismantle Earlier
(
II This is the same as for the later types detailed above
M3
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except that the insert (1) will be pressed out with the
. ri
9 shaft and impeller.
Inspection
1. Examine the pump body for cracks, corrosion or
any other damage. Check that the seal housing
bore is not damaged. Renew where necessary.
2. Examine the shaft and bearing assembly for wear
or corrosion. Renew where necessary.
3. Examine the water thrower flange for damage or
corrosion. Renew where necessary.