Removing and Installing Power-Steering Gear

Removing and Installing Power-Steering Gear

Caution:
Make sure all parts are absolutely clean.
No dirt is allowed to enter the system.
Seal off pipe connections with plugs.

Recycling:
Observe country-specific waste-disposal regulations.
Draw hydraulic fluid out of tank and do not reuse.

Installation:
Bleed power steering.

Remove front wheels.
Remove engine underguard and if necessary underhood shield.
Remove reinforcement plate.
Release nuts on left and right of engine support arm.
Raise engine with special tool 00 0 200, described in Removing oil sump/front axle differential.





Unfasten screws.

Installation:
Replace self-locking nuts.
Tightening torque:
- Steering gear to front axle carrier
- M12 10.9 100 Nm

Caution:
Check distance between engine carrier and stem of double joint.





Remove lower clamping screw on clamp.
Set steering gear to straight-ahead position - markings on steering spindle and steering gear must be aligned.
Remove ignition key in this position. The steering wheel cannot be turned any more and the slip ring in the steering column switch is not damaged.
Detach clamp from steering gear.

Installation:
Set steering gear to straight-ahead position - markings on steering spindle and steering gear must be aligned.
Tightening torque:
- Universal joint/coupling to steering gear/steering spindle
- Steel Joint
- M8 10.9 24 Nm
- Aluminum Joint
- M8 10.9 28 Nm
Note: Replace Clamping Screw





Unfasten nut.
Press off tie rod with special tool 32 3 090.

Installation:
Tapered spigot and bore both free of grease.
Replace self-locking nut.
Brace on hexagon socket if necessary.
Tightening torque:
- Hex screw on bearing block for adjustment of steering wheel
- Self locking nut 3.0 Nm
Note: Adjustment lever in clamped position.





Brace front axle support with workshop hoist.
Unfasten screws.
Lower workshop hoist.

Installation:
Tightening torque:
- Front axle carrier to engine carrier
- M12 10.9 100 Nm
Note: Replace Screws.





Release banjo bolts.
Remove steering gear to left side.

Installation:
Replace sealing rings (D).
Tightening torque:
- Hydraulic line connections to vane pump and steering gear
- M10 Banjo bolt 12 Nm
- M14 Banjo bolt 35 Nm
- M16 Banjo bolt 40 Nm
- M18 Banjo bolt 45 Nm
- Cap screw 36 Nm