REMOVAL AND INSTALLATION


caution
  • Before removing the driver’s air bag module and steering wheel assembly, always refer to GROUP 52B - Service Precautions , Driver’s Air Bag Module and Clock Spring . Also, set the front wheels so that they are facing straight forward, and remove the ignition key. If you fail to do this, the SRS clock spring will be damaged, causing the SRS (air bag) to be inoperative and serious injury.
  • After the installation, perform a calibration for the ASTC-ECU to learn the steering wheel sensor neutral point. (Refer to GROUP 35C - On-vehicle Service, Calibration ). <Vehicles with ASTC>
Pre-removal Operation
  • Power steering fluid draining (Refer to ).
  • Air cleaner removal (Refer to GROUP 15 - Air Cleaner ) <4N1>.
  • Front differential and propeller shaft disconnection (Refer to GROUP 25 - Propeller Shaft ).
  • Wheel speed sensor harness bracket, free wheel actuator connector and hose disconnection (Refer to GROUP 26 - Differential Carrier and Free Wheeling Clutch ).
  • Differential mount bracket front mounting bolts removal (Refer to GROUP 26 - Front Differential Mount ).

 Post-installation Operation
  • Differential mount bracket front mounting bolts installation (Refer to GROUP 26 - Front Differential Mount ).
  • Wheel speed sensor harness bracket, free wheel actuator connector and hose connection (Refer to GROUP 26 - Differential Carrier and Free Wheeling Clutch ).
  • Front differential and propeller shaft connection (Refer to GROUP 25 - Propeller Shaft ).
  • Air cleaner installation (Refer to GROUP 15 - Air Cleaner ). <4N1>
  • Fill power steering fluid and bleed air (Refer to ).
  • Check the dust cover for cracks or damage by pushing it with finger.
  • Check the steering angle (Refer to ).




Removal steps

>>D<<
 1.
 Split pin
<<A>>
2.
 Tie rod end and knuckle connection

>>C<<
 3.
 Tie rod end

>>B<<
 4.
 Bolt (Steering shaft joint assembly and power steering gear box assembly)

>>B<<
 5.
 Steering shaft assembly

>>A<<
 6.
 Power steering oil return tube connection


7.
 O-ring

>>A<<
 8.
 Power steering oil pressure tube connection


9.
 O-ring


10.
 Plate
<<B>>
11.
 Power steering gear box assembly

REMOVAL SERVICE POINTS

<<A>> TIE ROD END AND KNUCKLE DISCONNECTION
caution
  • Do not remove the nut from ball joint. Loosen it and use the special tool to avoid possible damage to ball joint threads.

  • Hang the special tool with a cord to prevent it from falling.

1.Install the special tool ball joint remover (MB991897 or MB992011) as shown in the figure.

2.Turn the bolt and knob as necessary to make the jaws of the special tool parallel, tighten the bolt by hand and confirm that the jaws are still parallel.
note When adjusting the jaws in parallel, make sure the knob is in the position shown in the figure.
3.Tighten the bolt with a wrench to disconnect the tie rod end.

<<B>> POWER STEERING GEAR BOX ASSEMBLY REMOVAL

caution Be sure not to damage the bellows and the tie rod end dust cover when removing the gear box assembly.

INSTALLATION SERVICE POINT

>>A<< POWER STEERING OIL PRESSURE TUBE/ POWER STEERING OIL RETURN TUBE CONNECTION

1.Align the paint marks of the steering gear box, pressure tube and return tube.

2.Use crowfoot wrench(MB992211) to connect the power steering oil return tube and power steering oil pressure tube.

>>B<< STEERING SHAFT ASSEMBLY, BOLT (STEERING SHAFT JOINT ASSEMBLY AND POWER STEERING GEAR BOX ASSEMBLY) INSTALLATION

1.Assemble the steering shaft to the vehicle body as shown.
(1) Engage the hole on bracket B with the projection of the bush to install bracket B.
(2) Hook the tab of bracket B into the opening on the bracket welded on the spring house. The projection on the bush should be aligned with its corresponding bracket.
(3) Hook the opposite tab of bracket B into the opening on bracket A.
(4) Tighten the bolt to secure the bush.
Tightening torque: 13 ± 2 N·m

2.Align the slit on the steering shaft assembly with the emboss on the power steering gear box assembly.

3.Insert the steering column bolt into the non-threaded bolt hole, and tighten it to the specified torque.
Tightening torque: 32 ± 3 N·m

>>C<< TIE ROD END/LOCK NUT INSTALLATION

Screw in the tie rod end to achieve the right and left length as illustrated. Lock with the lock nut.
Reference value (A): 53.1 ± 1 mm
note The lock nuts must be tightened securely only after the steering gear is installed to the vehicle and toe-in is adjusted.

>>D<< SPLIT PIN INSTALLATION

Insert the split pin into the nut, and then secure it by bending.