Steering Gear / Inspection and Adjustment

STEERING GEAR / Inspection and Adjustment


NOTE: Before replacing power steering, make sure there is no oil leakage around sealing portion and check steering turning torque as follows:

Check sealing portion.
- Sector shaft cover O-ring
- Sector shaft U-packing
- Sector shaft oil seal
- Rear housing O-ring
- Gear housing O-ring






TURNING TORQUE MEASUREMENT
1. Measure turning torque at 360° position.
a. Install steering gear on Tool.






b. Turn stub shaft all the way to right and left several times.
c. Measure turning torque at 360° position from straight-ahead position with Tools.

Turning torque at 360°:........................0.20 - 0.90 Nm (2.0 - 9.2 kgf-cm, 1.8 - 8.0 inch lbs.)





d. Measure turning torque at straight-ahead position.

Straight-ahead position is a position where stub shaft is turned 1.93 turns (two full turns and 50°) from lock position.
If turning torque is not within specifications, adjust by turning sector shaft adjusting screw.

Turning torque at straight-ahead position:..................0.45 - 0.80 Nm (4.6 - 8.2 kgf-cm, 4.0 - 7.1 inch lbs.) higher than turning torque at 360°
Maximum turning torque:.................1.7 Nm (17.3 kgf-cm, 15.0 inch lbs.)






2. Tighten adjusting screw lock nut with tools.