Inspection

INSPECTION

STEERING GEAR TOTAL PINION TORQUE CHECK

Required Special Tool:

- MB991006: Preload Socket

CAUTION:

- When holding the steering gear in a vice, secure its mounting positions. If it is secured in any other place, the gear housing may become deformed or damaged.
- Do not loosen the adjust screw more than 2 rotations.
- If the adjust screw is loosened more than 2 rotations, or if it is removed, replace the steering gear assembly.





1. Using special tool MB991006, rotate the pinion gear at the rate of one rotation in approximately 4 to 6 seconds to check the total pinion torque.
Standard value: 0.8 - 1.9Nm (7.1 - 16.8 in-lb)
[Change in torque: 0.7Nm (6.2 in-lb) or less]
NOTE:
When measuring, remove the bellows from the rack housing. Measure the pinion torque through the whole stroke of the rack.

2. If the total pinion torque or the change in torque is outside the standard value, loosen the rack support cover once and retighten it to the specified torque 12 ± 2 Nm
(106 ± 17 in-lb). Then loosen the rack support cover 10 degrees, and check the pinion torque again.
If the total pinion torque cannot be adjusted to within the standard range by adjusting the rack support cover, replace the power steering gear (Refer to Power Steering Gear Box and Linkage Disassembly and Reassembly).