Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Service 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
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