Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Manual - part 1990

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)

46.7

±7.8 (4.7±0.7/34±5.1)

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.

13.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.

16.Top Cover Assembly

Top Cover Bolt Torque

N

⋅m (kgf⋅m/Ib⋅ft)

44.1

±4 (4.5±0.5/32.5 ±3.6)

17.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)

41.2

±5.9 (4.2±0.6/30.4±4.3)

STEERING  3B-41

STEERING LINKAGE

GENERAL DESCRIPTION

3B-42  STEERING

 

  REMOVAL AND INSTALLATION

! Except Europe and Thailand for 4J series and 6VD1 engine model

Removal Steps

1. Nut
2. Bolt
3. Steering damper
4. Nut

" 5. Nut ; pitman arm
" 6. Nut ; relay lever
" 7. Intermediate rod

Installation Steps

7. Intermediate rod

" 6. Nut ; relay lever
" 5. Nut ; pitman arm

4. Nut
3. Steering damper
2. Bolt

" 1. Nut