Wheel Bearings - Sachs Bikes MadAss Reparaturanleitung

MAINTENANCE
FRONTWHEEL / REARWHEEL BEARINGS
Removing/installing the front-wheel bearing
NOTE
Heat the bearing seat to approx. 100 °C in order to facilitate
removal/installation.
Removing the wheel bearing:
- Remove the front wheel.
- Use an internal extractor to pull the wheel bearing (1) out
of the bearing seat of the wheel hub (2).
Installing the wheel bearing:
- Press the wheel bearing (1) into the bearing seat of the
wheel hub (2).
- Install the front wheel.
Removing/installing the rear-wheel bearing
NOTE
Heat the bearing seat to approx. 100 °C in order to facilitate its
removal and installation.
Removing the wheel bearing:
- Remove the rear wheel.
- Remove the brake shoe support.
- Use an internal extractor to pull the wheel bearing (1) out
of the bearing seat of the wheel hub (2).
Installing the wheel bearing:
- Press the wheel bearing (1) into the bearing seat of the
wheel hub (2).
- Install the front wheel.
Statically aligning the wheels
- Clamp the relevant wheel in the aligning device.
- Rotate the wheel gently and wait until it comes to a standstill.
Make a mark (1) at the low point of the tyre.
NOTE
Always start with the smallest alignment weight.
- Turn the wheel through 90°, stop it and let it fi nd its own
position. If the mark (1) again stops at the low point of the
tyre, this is the heavy point and an alignment weight (2) must
be installed opposite it.
- Each time turn the wheel through 90° and stop it; the wheel
must remain in position, otherwise repeat the alignment pro-
cedure.
48
1
1
1
2
1
SFM 949 153.3
1
SFM 649 154.3
1
SFM 649 209.3
2
SFM 649 210.3