Steering Gear: Service and Repair
REMOVAL1. Take out fluid in oil tank with syringe or such.
2. Disconnect high pressure pipe from steering gearbox by removing union bolt.
NOTE: As fluid flows out of disconnected joints, put a receptacle under joints or a plug to pipe.
3. Disconnect low pressure hose from steering gear box.
NOTE: As fluid flows out of disconnected joints, put a receptacle under joints or a plug to hose.
4. Remove steering lower shaft assembly.
For detail, refer to Steering Lower Shaft Assembly Removal.
CAUTION: Be sure to set front wheels (tires) in straight direction and remove ignition key from key cylinder, otherwise contact coil of airbag system may get damaged.
5. Jack up vehicle and remove both right and left wheels.
6. Disconnect both right and left tie rod ends from knuckle, refer to steps 2. to 3. of item Tie-Rod End Removal.
7. Remove steering gear box mounting bolts and then remove steering gear box from vehicle.
Steering gear box found to be in defective condition should be replaced with a new one.
NOTE: Don't disassemble P/S gear box.
INSTALLATION
Reverse removal procedure for installation of steering gear box noting following points.
- After confirming that front tire is in straight position, install steering gear box to body temporarily. Next, with tie-rod end installed to knuckle, set rack in position close to neutral. Then obtain the neutral state by aligning match marks on pinion shaft and steering gear case.
- Install steering shaft joint to pinion shaft and tighten shaft joint bolts (for correct installation refer to Steering Shaft Lower Assembly).
CAUTION: Be sure to confirm that steering wheel and front tires (wheels) are in straight position when installing steering shaft lower assembly.
- If a plug was put to disconnected pipe when removing steering gear box, remove that plug before reconnecting pipe.
- Use specified torque as given below.
Tightening Torque:
(a): 25 Nm (2.5 kg-m, 18.0 ft. lbs.)
(b): 35 Nm (3.5 kg-m, 25.5 ft. lbs.)
(c): 55 Nm (5.5 kg-m, 40.0 ft. lbs.)
- Connect tie-rod end to knuckle and tighten new tie-rod end nut.
- After installation, be sure to fill specified power steering fluid and bleed air.
- Check toe setting. Adjust as required. (Refer to Alignment.)