Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Manual - part 1988

STEERING  3B-31

  REASSEMBLY

Reassembly Steps

1. Gear box
2. Oil seal
3. Bearing
4. Bearing
5. Ball nut and worm shaft
6. Oil seal
7. O-ring

! 8. End cover

! 9. Lock nut
!10. Sector shaft

11. Needle bearing

!12. Adjust shim

13. Adjust screw

!14. Gasket
!15. Side cover
!16. Lock nut

3B-32  STEERING

Important Operations

8. End Cover

(1) When installing, take care so as not to cause damage to the

oil seal.

Taping the splines will provide some protection.

(2) Adjust the bearing preload by using socket.

Bearing Preload

N

⋅m (kgf⋅m/Ib⋅ft)

0.29 - 0.59 (0.03 - 0.06/0.22 - 0.43)

9. Lock Nut

Lock Nut Torque

N

⋅m (kgf⋅m/Ib⋅ft)

176.5

±49.0 (18.0±2.0/130.2±14.5)

Lock Nut Wrench : 5-8840-2006-0

(J-29753)

End Cover Installer : 5-8840-2007-0

(J-7624)

Note:
After tightening, check the bearing preload.

10.Sector Shaft
Align the center tooth of the ball-nut with that of the sector
shaft.

STEERING  3B-33

12.Adjust Shim
Adjust the clearance and check that the adjusting screw turns
freely.
Clearance

mm (in)

0.1 (0.004)

Adjusting shims available

mm (in)

1.524 (0.0600)
1.554 (0.0612)
1.585 (0.0624)
1.615 (0.0636)
1.646 (0.0648)

14.Gasket

15.Side Cover
Apply liquid gasket to the joining surface of each parts.

16.Lock Nut
Adjust the backlash between the sector gear and ball-nut.
(1) Install the pitman arm.

(2) Check  that  the  sector  shaft  moves  smoothly  in  the  correct

working angle range, then semi-tighten the lock nut.

(3) Measure preload of worm gear.

Preload

N

⋅m (kgf⋅m/Ib⋅ft)

less than 1.079 (0.11/0.795)

Note:
Obtain the specified backlash by turning the adjust screw.

The backlash should be measured at the drop arm end.
Backlash

mm (in)

0.2 (0.008)

3B-34  STEERING

POWER STEERING UNIT

REPAIR KIT

1. Nut : adjust screw
2. Gasket : cover
3. Gasket : sector shaft
4. Seal : sector shaft
5. Gasket : housing
6. Ring : retaining

7. Ring : back up
8. Seal: oil
9. Gasket : housing

10. Gasket : housing
11. Seal ring : housing
12. Dust Cover