Infiniti FX35 / FX45. Manual - part 869

PS-18

< SERVICE INFORMATION >

POWER STEERING GEAR AND LINKAGE

7.

Remove oil pipings (high pressure side and low pressure side)
from steering gear assembly, then drain fluid from pipings.

8.

Remove mounting bolt of steering hydraulic piping bracket from
steering gear assembly.

9.

Remove mounting bolt (lower side) of lower joint.

10. Remove mounting bolts of steering gear assembly with power

tool, and then remove steering gear assembly from vehicle.

INSTALLATION

• Refer to "Removal and Installation" for tightening torque. Install in the reverse order of removal.

NOTE:
Refer to component parts location and do not reuse non-reusable parts.

• After removing/installing or replacing steering components, check wheel alignment. Refer to 

FSU-5, "Wheel

Alignment Inspection"

.

• After adjusting wheel alignment, adjust neutral position of steering angle sensor. Refer to 

BRC-8, "Adjust-

ment of Steering Angle Sensor Neutral Position"

.

SGIA0541E

SGIA0545E

SGIA0542E

SGIA0546E

POWER STEERING GEAR AND LINKAGE

PS-19

< SERVICE INFORMATION >

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• When steering wheel is set in the straight ahead direction, confirm

slit of lower joint fits with the projection on rear cover cap, further-
more marking position on steering gear assembly nearly fits with
the projection on rear cover cap.

• After installation, bleed air from piping. Refer to 

PS-7, "Air Bleeding

Hydraulic System"

.

INSPECTION AFTER INSTALLATION

Check if steering wheel turns smoothly when it is turned several times fully to the end of the left and right.

Disassembly and Assembly

INFOID:0000000001327717

COMPONENTS

SGIA0539E

1.

Outer socket

2.

Boot clamp

3.

Boot

4.

Inner socket

5.

Boot clamp

6.

Gear housing assembly

7.

Rack oil seal

8.

Rack assembly

9.

Rack Teflon ring

10. O-ring

11.

End cover assembly

12. Cylinder tubes

SGIA1678E

PS-20

< SERVICE INFORMATION >

POWER STEERING GEAR AND LINKAGE

CAUTION:

• Secure steering gear assembly with a vise, using copper

plates or something similar to prevent it from being damaged.
Do not grip cylinder with a vise.

• Before performing disassembly, clean steering gear assembly

with kerosene. Be careful not to bring any kerosene into con-
tact with the discharge and return port connectors.

DISASSEMBLY

1.

Remove cylinder tubes from gear housing assembly.

2.

Remove rear cover cap from gear housing assembly.

3.

Measure adjusting screw height from gear housing assembly,
then loosen adjusting screw.

CAUTION:

• Do not turn adjusting screw more than twice.
• Replace steering gear assembly when adjusting screw is

removed or more than twice.

4.

Use a rear cover wrench (SST) to remove rear cover from pinion
assembly.

5.

Remove O-ring with a flat-bladed screwdriver, and pull out rear
cover.

6.

Remove pinion assembly from gear housing assembly.

CAUTION:

In order to protect oil seal from any damage, pull pinion
assembly out straightly.

7.

Loosen lock nut of outer socket, and remove outer socket.

8.

Remove boot clamps of the small diameter side and the large
diameter side, then remove boot.

CAUTION:

13. Pinion assembly

14. O-ring

15. Rear cover

16. Rear cover cap

Refer to 

GI-8, "Component"

 and the followings for the symbols in the figure. 

: Apply power steering fluid.

: Apply Genuine Liquid Gasket, Three Bond 1111B or equivalent.

: Apply multi-purpose grease.

SGIA0544E

SGIA0568E

SGIA0728E

SGIA0508E

POWER STEERING GEAR AND LINKAGE

PS-21

< SERVICE INFORMATION >

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When removing boots, be careful not to damage inner socket and gear housing assembly. If they
are damaged, change them to avoid oil leaks.

9.

Drill out the clinching part of cylinder outer rim with a 3 mm (0.12
in) drill in 1.5 mm (0.059 in) depth.

10. Remove end cover assembly with a 45 mm (1.77 in) open head

(suitable tool).

CAUTION:

Be careful not to damage rack. If it is damaged, replace
rack. Otherwise, oil leaks may result.

11. Pull rack assembly with rack oil seal out of gear housing assem-

bly.

CAUTION:

Be careful not to damage cylinder. If it is damaged, replace
gear housing assembly. Otherwise, oil leaks may result.

12. Heat rack Teflon ring to approximately. 40

°

C (104

°

F) with a

dryer, then remove it and O-ring from rack.

CAUTION:

Be careful not to damage rack. If it is damaged, change to a
new one to avoid oil leaks.

13. Use a taped 29 mm (1.14 in) socket and an extension bar.

Remove rack oil seal from gear housing assembly.

CAUTION:

Be careful not to damage gear housing assembly and cylin-
der inner wall. If it is damaged, gear housing assembly
must be replaced. Otherwise, oil leaks will result.

INSPECTION AFTER DISASSEMBLY

Boot

Check boot for cracks and deformation. Replace it, if necessary.

Rack

Check rack for damage and wear. Replace it, if necessary.

Pinion Assembly

• Check pinion gear for damage and wear. Replace it, if necessary.
• Check bearing while rotating it. Replace bearing if bearing ball race was dented, worn, or damaged.

STC0013D

SST081B

SGIA0151E

SGIA0179E