Cleaning, maintenance and repairs
BAG0175.3 07.18
12.2.2 Lubricating axles
Brake shaft bearing, outer and inner
CAUTION
no grease or oil should be allowed to enter the brakes. Depend-
ing on the model series, the cam bearing for the brakes may not
be sealed.
Renewing the wheel hub bearing grease
1. Jack up the vehicle securely and release the brakes.
2. Remove the wheels and dust caps.
3. Remove the lynch pin and unscrew the axle nut.
4. Use a suitable extraction device to remove the wheel hub and
brake drum, taper roller bearing and sealing elements from the
axle stub.
5. Label the removed wheel hubs and bearing cages so that you do
not confuse them when refitting.
6. Clean the brakes, check for wear, sound condition and proper
operation and replace worn parts.
The interior of the brake must be kept free from lubricants and
dirt deposits.
7. Thoroughly clean the interior and exterior of the wheel hubs.
Remove all traces of old grease. Thoroughly clean the bearings
and seals (diesel oil) and check for reusability.
Before refitting the bearings, lightly grease the bearing seats and
then refit all parts in the reverse order. Carefully fit interference
fit parts parts using tubular bushings without twisting or damag-
ing them.
The bearings, the wheel hub cavity between the bearings and
the dust cap must be smeared with grease before fitting. The
grease should fill approximately a quarter to a third of the space
in the fitted hub.
8. Fit the axle nut and adjust the bearing and brake. Finally, carry
out a function check and an appropriate test run and rectify any
detected faults.
To Next Page
