31 60 003 Removing and installing/replacing left output shaft
- The radial shaft seal for the output shaft should be replaced every time the output shaft is removed and installed. See REPLACING RADIAL SHAFT SEAL ON LEFT OF DIFFERENTIAL or REPLACING LEFT RADIAL SHAFT SEAL ON DIFFERENTIAL (ALL-WHEEL DRIVE VEHICLE) .
Necessary preliminary work:
- Remove FRONT WHEEL .
- Manual gearbox only: Drain and catch transmission oil.
Release collar nut (1), press brake pedal to floor for this purpose.
Remove TRACK ROD END FROM SWIVEL BEARING on left.
Remove WISHBONE FROM LEFT WHEEL CONTROL JOINT .
Use special tools:
- Hydraulic unit - 81 64 2 155 744
- Adapter kit 1 - 81 64 2 155 745
- Adapter kit 2 - 81 64 2 155 746
- Adapter - 81 64 2 318 661
The following work steps describe pressing out the output shaft:
The following tools are required to press out the output shaft from the drive flange, see illustration for arrangement:
Vehicle components:
| I | Drive flange hub |
|---|---|
| II | Wheel carrier/swivel bearing |
Required components for all models and types:
| 1 | Hydraulic unit |
|---|---|
| E3 | Washer M24 |
| F3 | Spindle M24 (length 270 mm) |
| C1 | Holding sleeve |
| K2 | Screws M14 x 1.5 |
| B1 | Adapter |
Secure output shaft against falling out.
Press out output shaft with hydraulic unit.
Press swivel bearing (1) outwards.
Pull out output shaft (2).
Lever output shaft (1) out of transmission and remove.
Installation note:
Manual gearbox only:
- Replace radial shaft seal for output shaft. See REPLACING RADIAL SHAFT SEAL ON LEFT OF DIFFERENTIAL or REPLACING LEFT RADIAL SHAFT SEAL ON DIFFERENTIAL (ALL-WHEEL DRIVE VEHICLE) .
Installation note:
Replace circlip.
Installation note:
- Manual gearbox only:
Insert assembly guard (1) into radial shaft seal.
- Assembly guard (1) is provided with new radial shaft seal for output shaft.
Make sure the tool fits over the lip of the radial shaft seal so there is no damage to sealing ring when the output shaft is inserted.
Installation note:
- With automatic transmission only:
Replace O-ring (1).
Installation note:
Insert output shaft (1) into gearbox.
- Manual gearbox only:
Before sealing surface is pushed into radial shaft seal, remove assembly guard (2) by pulling on handle.
Slide output shaft into gearbox up to stop.
Output shaft coupling must snap audibly into place. Check output shaft is securely seated.
The following work steps describe drawing in the output shaft:
The following tools are required to fit the output shaft in the drive flange, see illustration for arrangement:
Vehicle components:
| I | Drive flange hub |
|---|---|
| II | Wheel carrier/swivel bearing |
| III | Output shaft |
Required components for all models and types:
| 1 | Hydraulic unit |
|---|---|
| E1 | Holding sleeveM24 |
| D1 | Washer |
| F2 | Spindle M24/M20 (length 335 mm) |
Components specific to model and type (thread diameter, output shaft):
| G4 | Adapter M22 x 1.5 to M20 |
The G4 special tool sleeve used has relatively thin walls due to its technical requirements. So that the load limits of the clamping sleeve are not exceeded when pulling in the output shaft, the adapter 81 64 2 318 661 must be used together with a torque wrench.
Fit adapter with torque wrench to hydraulic unit (see illustration).
Set torque wrench to 20 Nm.
Draw in output shaft with hydraulic tool until the torque wrench is activated.
Tighten collar nut (1) by operating the brake.
Tightening torque 31 60 2AZ .
Installation note:
Renew collar nut (1), apply a light coating of oil to collar nut contact surface and tighten.
No oil permitted on thread of shaft journal or collar nut.
Secure collar nut (1) by positive peening at flat areas of output shaft.
After installation:
- Manual gearbox only: Add transmission oil.
- Check gearbox for leaks