Wheel Bearing - MZ 125 SX Repair Manual

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Rear Wheel
4.4.3 Wheel Bearing
Inspect the bearing play of the wheel bearing.
Should the wheel bearing have too much play or the wheel no
longer runs smoothly, the wheel bearings must be replaced.
Two deep groove ball bearings DIN 635-6204-2RS serve as the
wheel bearing.
Removal
1. Remove the rear real
(see 4.4.1 "Replacing the Rear Wheel").
2. Remove the chain plate
(see 4.4.2 "Chain Plate and Dog").
3. Remove the right side reducing bush.
To do this, pound carefully and evenly on the circumference
of the reducing bush with a spike from the left side of the
wheel.
4. Remove the left side reducing bush.
5. Carefully pound out the left and right bearing and spacer
sleeve using a spike.
Installation
1. Measure the spacer sleeve: minimum 110 mm, replace if
necessary.
Note:
If it is shorter than 110 mm, the spacer sleeve must be replaced.
Otherwise the wheel bearings may be damaged.
Attention!
Possible burns!
Never touch the air outlet of the hot air pistol!
This becomes very hot during operation.
Do not direct the hot air pistol at flammable or heat-
sensitive materials.
2. Heat both wheel bearing seats with a hot air pistol before
installation.
3. Install the left wheel bearing (chain side).
4. Slide the spacer sleeve in from the right.
The centring ring points toward the brake disc side.
5. Install the right wheel bearing and the reducing sleeves on
both sides.
6. Install the rear wheel.
MZ 125 SXlSM Repair Manual
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