STEERING GEAR AND LINKAGE DISASSEMBLY/ASSEMBLY

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1.  Disassemble in the order indicated in the table.

2.  Assemble in the reverse order of disassembly.

3.  After assembly, adjust the steering gear backlash. (See STEERING GEAR AND LINKAGE INSPECTION.)

4.  Add the specified steering gear oil.

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1
Nut
2
Pitman arm
(See Pitman Arm Disassembly Note.)
3
Clip
4
Dust boot
(See Dust Boot Disassembly Note.)
(See Dust Boot Assembly Note.)
5
Lock nut (side cover)
(See Locknut (Side Cover), Sector Shaft Disassembly Note.)
6
Sector shaft
(See Locknut (Side Cover), Sector Shaft Disassembly Note.)
(See Sector Shaft Assembly Note.)
7
Side cover
8
Adjusting shim
9
Adjusting screw
10
Oil seal
11
Retaining ring
12
Locknut
(See Locknut Disassembly Note.)
(See Locknut Assembly Note.)
13
Oil seal
14
Adjusting nut
(See Adjusting Nut Disassembly Note.)
15
Bearing
16
Worm shaft
17
Bearing
18
Gear housing


Pitman Arm Disassembly Note

1.  Separate the pitman arm from the steering gear using the SST.

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Dust Boot Disassembly Note

1.  Place the chisel against the boot and hold it at the angle shown.

2.  Remove the dust boot by tapping it with a hammer.

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Locknut (Side Cover), Sector Shaft Disassembly Note

1.  Loosen the locknut.

2.  Remove the side cover attaching bolts.

3.  Set the sector shaft in the middle position.

4.  Tap the sector shaft lower end using a plastic hammer to loosen the sector shaft.

5.  Lift and remove the sector shaft with the locknut and the side cover from the gear housing.

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Locknut Disassembly Note

1.  Remove the locknut using the SST.

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Adjusting Nut Disassembly Note

1.  Remove the adjusting nut using the SST.

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Locknut Assembly Note

1.  Inspect the worm shaft preload using the SST.

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Steering gear worm shaft preload
0.98—1.37 N·m {10.0—13.9 kgf·cm, 8.7—12.1 in·lbf}
[Pull scale reading: 9.8—13.7 N {1.00—1.39 kgf, 2.21—3.07 lbf}]

2.  If not as specified, adjust the preload.

(1)  Loosen the locknut using the SST.
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(2)  Turn the adjusting screw using the SST.
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(3)  Tighten the locknut to the specified torque using the SST.
Tightening torque
128—166 N·m {13—17 kgf·m, 95—122 ft·lbf}
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(4)  Inspect the worm shaft preload again.


Sector Shaft Assembly Note

1.  Set the adjusting screw and shim, in the “T” groove.

2.  Measure the clearance in the axial direction.

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3.  Adjust the clearance to the specified value if the clearance is more than the specified value

Clearance:
0—0.1 mm {0—0.004 in}
Adjusting shim thickness:
1.97 mm {0.077 in}
2.03 mm {0.079 in}
2.09 mm {0.082 in}
2.00 mm {0.079 in}
2.06 mm {0.081 in}
Caution
Be careful not to damage the oil seal and bearing.

4.  Assemble the sector shaft in such a way that the teeth of the sector shaft mesh with the center part of the teeth of the worm shaft.


Dust Boot Assembly Note

1.  Wipe the grease off the ball joint.

2.  Put a small amount of lithium-based grease into a new dust boot.

3.  Install the dust boot onto to the ball joint.

4.  Set the SST over the boot and install a new clip.

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5.  Wipe away excessive grease.