Replacing Front Wheel Bearing
WARNING:
Mechanical, hydraulic or pneumatic press
- Risk of squashing
- Read specific safety information for the press.
- Check that the press is working perfectly before use, particularly the safety components.
Information
The following tool sets are required for replacing the wheel bearing:
- > T10205 - Attachments
- > T10230/14-16 - Supplementary set
- > 9247 - Pressure pieces (4)
WARNING:
Danger of objects or loads falling down
- Risk of squashing or crushing
- Secure components to prevent them from falling down.
Information
The separating device must be tightened only as far as required so that the wheel hub is not damaged.
- Press out the wheel hub -5-
.
Removing wheel hub
1 Workshop press ram 2 > VW432 - Pressure piece 3 Wheel bearing housing 4 > VAS 251 413 - Separating device 5 Wheel hub - 1.1 Place a suitable aid (e.g. foam) under the workshop press as the wheel hub -5- will fall to the floor after you press it out.
- 1.2 > VAS 251 413 - Separating device must be aligned between the wheel hub -5- and wheel bearing housing -3- in such a way that all screws on the mounting plate are flat against the jaws of the separating device.
- 1.3 Insert wheel bearing housing with > VAS 251 413 - separating device into the workshop press as shown > Mounting plate on wheel bearing housing .
- 1.4 > VW432 - Pressure piece-2- must be aligned with the wheel hub -5- .
- 1.5 Press out the wheel hub -5- and remove it.
- Unscrew screws -1-
and remove mounting plate -2-
.
Mounting plate on wheel bearing housing
- Press out the wheel bearing.
Removing wheel bearing
1 Workshop press ram 2 T10205/10 3 > VW459 - Tube 4 Wheel bearing housing 5 T10205/5 - 3.1 Fit wheel bearing housing -4- on the pressure piece T10205/5 -5- in such a way that the wheel bearing can be pressed out into the pressure piece T10205/5 -5- .
- 3.2 > VW459 - Tube-3- must be aligned with the wheel bearing outer ring. Then fit T10205/10 -2- .
- 3.3
Press out the wheel bearing.WARNING: Danger of objects or loads falling down
- Risk of squashing or crushing
- Secure components to prevent them from falling down.
Information
The separating device must be tightened only as far as required so that the wheel hub is not damaged.
- Risk of squashing or crushing
- Press out wheel bearing inner ring -2-
.
Removing wheel bearing inner ring
1 Workshop press ram 2 > VW432 - Pressure piece 3 Wheel bearing inner ring 4 > VAS 251 413 - Separating device 5 Wheel hub - 4.1 Place a suitable aid (e.g. foam) under the workshop press as the wheel hub -5- will fall to the floor after you press it out.
- 4.2 > VAS 251 413 - Separating device-4- must be tightened carefully under the wheel bearing inner ring -3- .
- 4.3 Insert wheel hub -5- with > VAS 251 413 - separating device-4- into the workshop press as shown > Wheel bearing housing on heating plate .
- 4.4 > VW432 - Pressure piece-2- must be aligned with the wheel hub.
- 4.5 Press out wheel bearing inner ring -3- .
- Heat wheel bearing housing -1-
using a heating plate -2-
to > Temperature 80 °C
.
Wheel bearing housing on heating plate
Information
- The multipole seal on the wheel bearing must not come into contact with highly magnetic tools .
- Installing the wheel bearing: The magnetic side must be facing the speed sensor (inside of wheel bearing housing) .
- Use the > T10473 - sensor gauge or a paper clip to find the magnetic side .
- Press in wheel bearing -4-
.
Fitting wheel bearing
1 Workshop press ram 2 T10205/4 3 T10230/14 4 Wheel bearing 5 Wheel bearing housing 6 9247/4 7 > VW459 - Tube - 6.1 Using gloves, place wheel bearing housing -5- flat on the pressure pieces 9247/4 -6- and > VW459 - tube-7- .
- 6.2 Align wheel bearing -4- on the wheel bearing housing -5- in such a way that the magnetic ring is facing downwards.
- 6.3 T10230/14 -3- must be aligned with T10205/4 -2- on the wheel bearing -4- .
- 6.4 Press the wheel bearing -4- in as far as it will go (Check pressure gauge. When the pressure increases rapidly, the wheel bearing is in installation position).
- Install mounting plate -2-
Mounting plate on wheel bearing housing
- 7.1 Position mounting plate -2- .
- 7.2
Screw in and tighten screws -1-
.
> Tightening torque 20 Nm (15 ftlb.)
> Torque angle + 90 °
- Press in wheel hub -3-
.
Fitting wheel hub
1 Workshop press ram 2 T10205/10 3 Wheel hub 4 Wheel bearing housing 5 > VW459 - Tube 6 T10205/4 - 8.1 Align the wheel bearing housing -4- with the pressure pieces T10205/4 -6- and > VW459 - tube-5- in such a way that the > VW459 - tube-5- is flush on the wheel bearing inner ring.
- 8.2 Align wheel hub -3- with the wheel bearing housing -4- .
- 8.3 T10205/10 -2- must be aligned with the wheel hub -3- .
- 8.4 Press the wheel hub -3- in as far as it will go. (Check pressure gauge. When the pressure increases rapidly, the wheel hub is in installation position).