Steering Gear: Adjustments

ADJUSTMENT OF WORM SHAFT STARTING TORQUE





Steering gear box has adjusting bolt which gives preload to sector shaft.

Special Tool (A): 09944-18211 or equivalent.





Make adjustment according to following procedure.
1. Check worm shaft to ensure that it is free from thrust play.
2. Position pitman arm in nearly parallel with worm shaft as shown.
(With pitman arm in this position, front wheels are in straightforward state.)





3. Measure worm shaft starting torque from its position in straightforward state as described in 2.

Starting Torque for Worm shaft (a): 50 - 100 N cm (0.4 - 0.7 ft. lbs.)

Special Tool (A): 09944-18211 or equivalent.





If measured torque is not within specification, carry out adjustment with adjusting bolt to meet specification and check to confirm it again.





4. If worm shaft starting torque is checked all right, another check should be carried out on worm shaft operating torque in its entire operating range (by turning worm shaft all the way to the right and left).

Worm shaft (including sector shaft) operating torque under 120 N cm (10.9 ft. lbs.)

Special Tool (A): 09944-18211 or equivalent.

If measured torque does not conform to specification, readjust worm shaft starting torque in straightforward state by means of adjusting bolt, and then recheck worm shaft operating torque.

If specified value is not attained even after readjustment, it is advisable to replace gear box with new gear box assembly.