Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Manual - part 2037

3B-38  STEERING

  REASSEMBLY

Reassembly Steps

1. Gear box

V

2. Gasket

V

3. Seal
4. Needle bearing

V

5. Gasket

V

6. Seal ring

V

7. Gasket

V

8. Ball nut and valve housing assembly

V

9. Oil seal

V

10. Seal ring

V

11. Retaining ring

V

12. Sector shaft
13. Needle bearing
14. O-ring

V

15. Top cover assembly

V

16. Lock nut

STEERING  3B-39

Important Operations

2. Seal Ring

3. Dust Seal

Note the setting direction.
Apply a thin coat of grease to lip of each part.

5. O-Ring

6. Seal Ring

7. O-Ring

Apply a thin coat of grease.

8. Ball Nut and Valve Housing Assembly

(1) It is strongly advisable to keep the ball screw and valve

housing assembly always in a horizontal position and avoid

holding it vertically, or the rack piston will fall off onto the

end of the worm, causing the rack piston to slip out of the

worm shaft and balls to fall out.

(2) Be careful so as not to the drop the O-ring fitted to oil

passage in the valve housing.

(3) Tighten the valve housing retaining bolts to the specified

torque.

Valve Housing Bolt Torque

N

⋅

m (kgf

⋅

m/Ib

⋅

ft)

47

±

7 (4.8

±

0.8/34.7

±

5.8)

9. Oil Seal
Oil Seal Installer : 5-8522-0026-0

(J-26508)

3B-40  STEERING

10.Back Up Ring

11.Retaining Ring
Turn the face with rounded edge (outer circumference) to the
oil seal.

12.Sector Shaft

(1) Tape the sector shaft serrations to protect the seal ring from

damage.

(2) Align the center tooth of ball nut with that of the sector shaft.

15.Top Cover Assembly

Top Cover Bolt Torque

N

⋅

m (kgf

⋅

m/Ib

⋅

ft)

47

±

7 (4.8

±

0.7/34.7 

±

5.2)

16.Lock Nut
Adjust the backlash between the worm gear and the ball nut.
(1) With the worm gear rotating, set it to the straight ahead

position.

(2) Set the worm shaft preload to below 0.98 N

⋅

m (10 kgf

⋅

cm/

8.7 lb

⋅

in) with the sector shaft adjusting screw.

(3) Measure the worm shaft backlash with the worm gear

turned 450

°

 both to the right and to the left.

The worm gear preload in these positions should be 0.3 

±

0.1 N

⋅

m (3 

±

 1 kgf

⋅

cm / 2.6 

±

 0.9 lb

⋅

in) lower than in the

straight ahead position.

(4) Lock the sector shaft adjusting screw with the lock nut.

Lock Nut Torque

N

⋅

m (kgf

⋅

m/Ib

⋅

ft)

41

±

6 (4.2

±

0.6/30.2

±

4.4)

STEERING  3B-41

STEERING LINKAGE

GENERAL DESCRIPTION