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Infiniti QX56 (Z62). Manual - part 1257

ST-38

< REMOVAL AND INSTALLATION >

STEERING SHAFT

Remove the steering shaft from upper joint by sliding the steer-
ing shaft (A: sliding range).

Remove the steering shaft and hole cover.

10. Remove collar, hole cover seal, and hole cover assembly.

CAUTION:

Never damage hole cover seal.

11. Perform inspection after removal. Refer to

ST-39, "Inspection"

INSTALLATION

Note the following, and install in the reverse order of removal.

CAUTION:

Spiral cable may be cut if steering wheel turns while separating steering column assembly and steer-
ing gear assembly. Be sure to secure steering wheel using string to avoid turning.
• Insert hole cover seal all the way to the hole cover.

CAUTION:

Never damage the seal lip of the hole cover seal with the tip of the steering shaft.

• Install clamp as shown in the figure.

• Tighten the clamp to the specified torque and check the clamp

length (A).

• After tightening the upper joint fixing bolt and nut, check the no

clearance between bolt and steering shaft.

CAUTION:

Never reuse upper joint mounting nut.

• When installing lower joint, tighten the steering gear side fixing bolt

first.

• When installing lower joint to steering gear assembly, follow the

procedure listed below.

- Set rack of steering gear in the neutral position.

NOTE:
To get the neutral position of rack, turn gear-sub assembly and measure the distance of inner socket, and
then measure the intermediate position of the distance.

JPGIA0070ZZ

: 9.2

: Vehicle front

JPGIA0071ZZ

Clamp length “A”

: 3.0 mm (0. 12 in) or less

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STEERING SHAFT

ST-39

< REMOVAL AND INSTALLATION >

- Align rear cover cap projection (A) with the marking position of

gear housing assembly (B).

- Install slit part of lower joint (C) aligning with the rear cover cap

projection (A). Make sure that the slit part of lower joint (C) is
aligned with rear cover cap projection (A) and the marking position
of gear housing assembly (B).

• When installing lower joint (1) to steering shaft (2), check the fixing

length (A).

• Perform inspection after installation. Refer to

ST-39, "Inspection"

Inspection

INFOID:0000000006225606

INSPECTION AFTER REMOVAL

Lower Joint

• Check dust boot clamp (looseness and disconnection) and dust boot (scratches, cracks, and holes).

Replace the lower joint, as necessary.

• Check each part of lower joint for damage and other malfunctions. Replace if there is a malfunction.

Steering Shaft

• Check steering shaft and hole cover seal for scratches, cracks, and holes. Replace the steering shaft or hole

cover seal, as necessary.

• Check the sliding range of the steering shaft.

CAUTION:

Check the sliding range (A) (between the extended position
and the contracted position) of the steering shaft.

• Check the length (L) (extended position) of the steering shaft.

: Bolt

JPGIA0038ZZ

: 15.3 mm (0.602 in)

JPGIA0068ZZ

: Refer to

ST-58, "Steering Shaft Sliding Range"

JPGIA0070ZZ

: Refer to

ST-58, "Steering Shaft Sliding Range"

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ST-40

< REMOVAL AND INSTALLATION >

STEERING SHAFT

• Rotate the steering shaft to check runout of the steering shaft at

the runout measuring point ( ) by using dial indicator and V-block.

• Check each part of steering shaft for damage and other malfunc-

tions. Replace if there is a malfunction.

INSPECTION AFTER INSTALLATION

• Check dust boot bellows (deformation, such as dents). Manually rework the bellows, as necessary.
• Check if steering wheel turns smoothly when it is turned several times fully to the end of the left and right.
• Check the steering wheel play, neutral position steering wheel, steering wheel turning force, and front wheel

turning angle. Refer to

ST-32, "Inspection"

• Adjust neutral position of steering angle sensor. Refer to

BRC-64, "Work Procedure"

Runout

: Refer to

ST-58, "Steering Shaft Sliding

Range"

: 120 mm (4.72 in)

: 240 mm (9.45 in)

JPGIA0075ZZ