Rear Wheel Angle Inspection (4WS)

Rear Wheel Angle Inspection (4WS)
1. Set the turning radius gauges at the rear wheels.
2. Apply the brake and turn the steering wheel 127° to right.
Check the rear wheel.

Turning angle: 1° 30' ± 30'

3. Turn the steering back to center, apply the brake and turn the steering wheel 127° to the left.
Check the rear wheel turning angle again: 1° 30' ± 30'
4. Apply the brake and turn the steering wheel right and left to full lock.
5. At both left and right full lock, the rear wheel max turning angle should be:

Wheel pointing inward : 5° 0' ± 1°
Wheel pointing outward : 5° 20' ± 1°

6. If not as specified, see Alignment.
If not correctable by re-alignment, the rear steering gearbox may need to be replaced.