429019 Removing and installing rear anti-roll bar (PDCC)
WM 429019 Removing and installing rear anti-roll bar (PDCC)
Tools
Preliminary work
1. Raise the vehicle. -> 4X00IN Lifting the vehicle Service and Repair
2. Remove rear valve block -> 430419 Removing and installing valve block, front axle and rear axle (PDCC) - section on "Removing" 430419 Removing and installing rear-axle valve block (PDCC) 430419 Removing and installing front-axle valve block (PDCC).
3. Remove right rear wheel -> 440519 Removing and installing wheel Removal and Replacement.
Removing rear anti-roll bar
WARNING
Caustic fluids
- Danger of chemical burns
-> Avoid contact with caustic fluid.
-> Wear personal protective gear.
-> Ensure that there is good ventilation.
-> If you do come into contact, wash off immediately with plenty of warm water and contact a doctor if necessary.
NOTICE
Aggressive fluids
- Risk of damage to components and surfaces
-> Do not spill fluids.
-> In the event of contact, wash the component or surface with water.
-> Replace components that are already damaged.
Information
PDCC chassis:
- Steel flexi-pipes are particularly sensitive to kinking and crushing.
- Treat the steel flexi-pipes with great care when removing, storing and reinstalling the anti-roll bar.
- Make sure that the steel flexi-pipes are not subject to any mechanical loads during the following operations.
Overview
1. Screw off suspension/stabiliser -1-.
Removing suspension/stabiliser
1.1. Screw off fastening nut -2-.
1.2. Counter ball pin with cone wrench Nr.200.
1.3. Press suspension/stabiliser -1- outwards and remove it.
2. Perform the process analogously on the opposite side.
3. Mark the installation position -arrow- of the anti-roll-bar mount halves with respect to the anti-roll bar with a touch-up stick.
Marking installation position (illustration as example)
4. Unscrew fastening screws -1-.
Unscrewing anti-roll-bar mount
5. Remove holder for electric plug connection -2-.
6. Remove anti-roll-bar mount -3-.
7. Perform the process analogously on the opposite side.
8. Release the compressor.
Releasing compressor
8.1. Screw on fastening screws -1-.
8.2. Tilt compressor -2- downwards and secure it with a tie-wrap to prevent it from falling.
9. Secure steel flexi-pipes on the anti-roll bar with a tie-wrap.
10. Pull anti-roll bar -1- to the right and out. When doing so, pay particular attention to the steel flexi-pipes that are still connected.
Removing anti-roll bar
Installing rear anti-roll bar
WARNING
Caustic fluids
- Danger of chemical burns
-> Avoid contact with caustic fluid.
-> Wear personal protective gear.
-> Ensure that there is good ventilation.
-> If you do come into contact, wash off immediately with plenty of warm water and contact a doctor if necessary.
NOTICE
Aggressive fluids
- Risk of damage to components and surfaces
-> Do not spill fluids.
-> In the event of contact, wash the component or surface with water.
-> Replace components that are already damaged.
WARNING
Wheel bearing housing raised incorrectly
- Risk of squashing
- Risk of damage to components
-> Wear personal protective gear.
-> Do not raise the wheel suspension higher than the normal vehicle position (vehicle resting on wheels).
Information
PDCC chassis:
- Steel flexi-pipes are particularly sensitive to kinking and crushing.
- Treat the steel flexi-pipes with great care when removing, storing and reinstalling the anti-roll bar.
- Make sure that the steel flexi-pipes are not subject to any mechanical loads during the following operations.
Information
- The entire threaded parts of the axle must be tightened in vehicle position. Vehicle position means: vehicle standing on the wheels, or the wheel suspension is raised with a universal vehicle lift. Dimension -X- , from lower edge of wing to centre of axle corresponds to vehicle position. The current height can be found in -> 4495TW Adjustment values for suspension alignment 4495TW Adjustment values for suspension alignment. Always observe the following points.
Dimension X - centre of wheel to lower edge of wing (rear axle shown)
Steel springs
- The vehicle position is reached at the rear axle by pre-tensioning the steel spring using spring clamp 9823 to the dimension -X-.
Air suspension
- The vehicle position is reached at the rear axle by bleeding the respective air spring using the PIWIS Tester II 9818 and carefully lifting the respective wheel bearing housing to the dimension -X-.
- Use an intermediate layer (hard rubber)! Do not damage the brake cover plate.
Lifting wheel carrier (air suspension)
- Screws and nuts are Geomet-coated and must not be greased.
- Grease the toothing of the drive shaft slightly with aluminium paste Optimoly TA.
- Drive shafts must not be left hanging from the joint stop! Tie up.
- Use new screws and lock nuts.
- Observe correct tightening torques and torque angles -> 4X00IN Tightening torques for rear axle 4X00IN Tightening torques for rear axle.
1. The anti-roll bar is installed in reverse order to removal.
2. Pay close attention to the installation position markings -arrow- when tightening the anti-roll-bar mount.
If the anti-roll bar is replaced, both ends of the anti-roll bar must be fitted horizontally.
Installation position markings (illustration as example)
3. Always observe the correct tightening torques:-> 4X00IN Tightening torques for rear axle 4X00IN Tightening torques for rear axle as well as -> 4X00IN Tightening torques for levelling system [1][2]Specifications.
Subsequent work
1. Install rear valve block -> 430419 Removing and installing valve block, front axle and rear axle (PDCC) - section on "Installing" 430419 Removing and installing rear-axle valve block (PDCC) 430419 Removing and installing front-axle valve block (PDCC).
2. Fit right rear wheel -> 440519 Removing and installing wheel Removal and Replacement.