Operation Manual
8.6 Removing the shaft sleeves and shims
1.
Remove the wire shaft sleeve retaining
clip (64) from the shaft taking care not to
damage the shaft spline or sleeve
abutment face.
2.
Pull the shaft sleeve (42) off the shaft.
3. The setting ring (35) and shims (25) can
be removed from the shaft. Take care not
to lose or mix any shims and check no
shims are left inside the sleeve.
8.7 Draining the pump of lubricant
1. Remove the drain plug (51) from the gear
housing (14). The lubricant may now be
drained into a suitable container.
8.8 Removing the front seal retainer
1. Remove the seal retainers (36) by levering
with a screwdriver/lever.
2. Once the seal retainers are removed the
oil seals (37) can be removed using a
screwdriver/lever. It is essential to renew
the oil seals upon reassembly.
8.9 Removing the gear housing
1.
Remove the socket head cap screws
(15).
2.
Tap the foot of the bearing housing
assembly (18) gently to release the gear
housing (14) from the bearing housing.
3.
Slide the gear housing (14) from the shafts.
Remove the bearing rear outer races (39)
and press out the oil seal (41). It is essential
to renew the oil seal upon re-assembly.
4.
Remove the gasket. (17)
8.10 Removing the timing gears
1. Pull the rear inner bearing races (39) off
the shafts. A puller or extractor may be
required to do this.
2. Disengage the tabs of the lock washers
(52) fitted to the timing gear nuts (38) and
with a plastic block between the gears to
stop them turning remove the locking
nuts with a 'sharp tap' on a 'C' spanner.
3. Remove the timing gears (23,24), keys
(46) and any shims (30) from the shafts.
Note position of shims(top/bottom).
8.11 Shaft and bearing removal
1. Replace the rotors back on the shafts.
Disengage the tabs of the lock washers
(32) fitted to the bearing nuts (31) and with
the rotors locked by using a rag or similar
to stop them turning remove the locking
nuts with a 'sharp tap' on a 'C' spanner.
Remove the rotors from the shafts.
2. Disassemble shafts (28,29) from bearing
housing (18).
3.
Remove each bearing set (33) (inner
cones and outer cups) and
maintain in
sets
if they are to be re
-
used.
To assist assembly note the positions on the
shaft from which the bearings were removed.
Good engineering practice suggests that if
bearings are removed from the shafts for any
reason they should be replaced with new
bearings.
STP125 Page 19
