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Do not attach hose clamps up to 025 mm -3094- to the return hose -2- near the check valve. Otherwise, the check valve may be damaged. The non-return valve is located in the return hose -2- between the clamps -arrows-. Unscrew the front wheels. Unscrew the nut -1- of the tie rod end -2- until it is flush with the thread of the pin. When loosening, if necessary, keep it from turning.
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To protect the thread, leave the nut on the pin screwed in a few turns. Press the tie rod end out of the wheel bearing housing using a ball joint puller -T40010 A-. Then unscrew the nut.
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Make sure that both arms of the puller lever are parallel to each other at the moment of maximum force application; correct the position if necessary. Remove sound insulation. Unscrew the nut -3- of the rubber support -4-.
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Remove stabilizer -1-. Remove the cross brace -4-.
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Risk of damage to chassis parts. Never lower the vehicle onto its wheels unless the attachment support, steering gear or subframe cross braces are properly installed. Supporting the vehicle on a subframe or cross stretchers of the subframe (for example, when using a rolling jack or the like.) not allowed! Unscrew bolts -4- and remove pressure line -3-. Remove return line -2-. Do not use tools to remove steering lines (risk of damage to contact and sealing surfaces). Close the connections in the power steering mechanism with clean plugs. Close the pressure line -3- and the return line -2- with a clean plug.
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Unscrew the bolt -arrow-. Remove the intermediate steering shaft -1- from the steering gear -2-.
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For vehicles with electric mag. Servotronic valve -N119-: Disconnect plug connection -1 - and remove it from the electrical circuit. mag. Servotronic valve -N119- -2-.
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All
Unscrew bolts -2- and remove nuts -3-. Guide the steering gearbox -5- slightly to the right and remove it.
Installation
Install in reverse order. In this case, tightening torques must be taken into account. Before installation, lightly lubricate lip seals -1- and -5- with hydraulic oil. Fully insert pressure line -3 and return line -2- when installing. Install stabilizer -1-. Do not fully tighten both bolts -2-, then tighten them. Install the cross brace -4-. Remove hose clamps up to 025 mm -3094- from suction hose -1 - and return hose -2-. Set the power steering mechanism to the middle position. Bleed the air from the steering. Check the level of working fluid in the hydraulic system. Check the tightness of all open connections of the lines. Adjust the wheel alignment angles.
Steering alignment
By adjusting the center position of the steering wheel, we mean simply "leveling" steering for subsequent work. You can accurately determine the center position of the steering wheel by turning the steering wheel using the computer to adjust the wheel alignment. If, using the RUUK device, when determining the average steering position, a deviation of the steering wheel is detected, it is necessary to check the steering and suspension components for damage or deformation, and if necessary, replace damaged parts. You should also check the symmetry of the tie rods. Remove sound insulation. Set the power steering mechanism to the middle position. The protrusion -1- should be opposite the mark -2-.
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The distance from the tie rod ends to the power steering mechanism on the left and right should be the same. These data are helpful when setting the steering wheel to approximately the middle position.
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