MAINTENANCE
45
4.
Use circlip pliers to remove the circlip (A) from
the pump shaft (B) and, if the bearing must be
replaced, to remove the circlip (C) from the
pump housing (D).
5.
At the back of the pump housing, gently drive
out the pump shaft (A). Use a plastic hammer.
6.
Check the teeth (B) and the contact surface (C)
for the dynamic seal for wear and damage.
Replace the pump shaft if necessary.
7.
At the back of the pump housing, drive out the
dynamic seal (A) via the paths of the leakage
zone (B). Use a driver and a plastic hammer.
8.
If it is not necessary to replace the bearing, go
to step
13
.
9.
At the front of the pump housing, place a
suitable bush (A) against the outer ring (B) of
the bearing. The outer diameter of the bush (A)
must be 103 ±1 mm (4.06 ±0.04 in). Use a
plastic hammer to gently drive out the bearing.
A
D
C
B
Circlip (A) locks the inner ring of
the bearing.
Circlip (C) locks the outer ring of
the bearing.
A
B
C
A
B
A
B
