978
Model Code Page
64. Powered front axle
1. 4. 1997
6000--8750 643 2
1. 1. 1995
B. Changing wheel bearing and hub oil
seal
1. Raise the front end of the tractor and support it with sturdy
trestles. Remove the front wheel from the side to be repaired.
Drain the oil from the hub.
2. Unscrew the planetary gear housing screws and remove
the housing from the axle.
3. Unscrew the r ing gear attaching screws; pull off the ring
gear with aid of two screws (M8).
4. Pull off the wheel attaching flange using a puller; this action
releases the outer bearing of the wheel.
5. Use a drift to tap out the wheel bearing outer races. Fit new
outer races.
Important: to ensure that the wheel bearing has the correct
preload replace the same shims under the outer race of the
outer wheel bearing.
6. Remove the inner bearing from the steering knuckle using
an extractor. When the bearing is changed it can be removed
by attaching a puller behind the rollers.
7. Heat the new inner bearing (80˚C) and push it fully home
onto the knuckle. Oil the bearing rollers.
8. Change hub oil seal if necessary (ETV 894 020). It can be
removed by tapping it through the holes in the opposite side.
Fit the dust seal ring. Fill the space between the lipsof the seal
with universal grease.
Note! On the latest axles there is a cassette type hub oil seal,
which can be fitted with plate ETV 894 150. The casette seal is
fitted on standard axles from axle no. 1701/94 incl. and on the
Hi---Lock axles from axle no. 0036/94 inc l . In c onnection with
the cassette seal the wear ring is not used. The wear ring
should be removed from the earlier axles before fitting the
cassette seal. The spare part steering knuckles have a wear
ring which should be removed before the cassette seal is
fitted.
9. Check the wear ring of the hub oil seal and change it if
necessary. The wear ring is easier to remove if it is warmed up.
N.B. Heat the wear ring to 80˚C when fitting. Apply sealing
compound Loctite 290 to the inner surface of the wear ring.
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