Infiniti F50. Manual - part 706

STEERING COLUMN

PS-13

C

D

E

F

H

I

J

K

L

M

A

B

PS

Disassembly and Assembly

EGS00072

DISASSEMBLY

1.

Remove combination switch from upper jacket tube.

2.

Remove tilt motor and sensor from jacket tube assembly.

3.

Remove telescopic motor and sensor from jacket tube assembly.

4.

Remove snap ring from steering column upper shaft.

5.

Remove upper jacket tube.

6.

Remove mounting nuts, and remove steering column upper shaft from jacket tube assembly.

PGIA0002E

1.

Upper jacket tube

2.

Tilt motor

3.

Tilt sensor

4.

Steering column upper shaft

5.

Tilt lever

6.

Spring

7.

Telescopic motor

8.

Telescopic sensor

9.

Snap ring

10. Bracket

11.

Jacket tube

12.

O-ring

13. Mounting nut

PS-14

STEERING COLUMN

Steering Lock

1.

Break self-shear type screws with a drill or other appropriate
tool.

2.

Install new self-shear type screws and then cut off self-shear
type screw heads.

ASSEMBLY

●

Refer to component parts diagram for tightening torque and reverse disassembly procedure for assembly.

Inspection

EGS00086

●

After installing steering column, check tilt mechanism operation.

●

When steering wheel does not turn smoothly, check steering col-
umn as follows and replace damaged parts.

1.

Check column bearings for damage or unevenness. Lubricate
with recommended multi-purpose grease or replace steering
column as an assembly, if necessary.

2.

Check steering column lower shaft for deformation or breakage.
Replace if necessary.

●

When the vehicle is involved in a light collision, check steering
column length 

″

L

1

 

″

 and steering column lower shaft length 

″

L

2

″

. If it is not within specifications, replace steering column as an

assembly.

SST678C

SGIA0053E

Steering column length 

″

L

1

 

″

: 638 - 668 mm (25.12 - 26.30 in)

Steering column lower shaft length 

″

L

2

 

″

: 379.8 mm (14.95 in)

SST315B

POWER STEERING GEAR AND LINKAGE

PS-15

C

D

E

F

H

I

J

K

L

M

A

B

PS

POWER STEERING GEAR AND LINKAGE

PFP:49001

Removal and Installation

EGS00073

REMOVAL

CAUTION:

The rotation of spiral cable (SRS 

″

 Air bag 

″

 component part) is limited. If steering gear must be

removed, set front wheels in the straight-ahead direction. Do not rotate steering column while steering
gear is removed.

1.

Remove undercover.

2.

Remove and tires cotter pin and remove tie rod outer socket
from knuckle arms with Tool.

CAUTION:

●

Be careful not to damage tie rod ball joint dust boot.

3.

Remove pinch bolt on lower side of lower joint.

4.

Loosen pinch bolt on upper side of lower joint.

5.

Remove high-pressure side and low-pressure side hydraulic
pipes from power steering gear.

6.

Remove gear and linkage assembly mounting bolts.

7.

Remove rack mount bracket and rack mount insulator from vehi-
cle.

8.

Disconnect EPS solenoid valve connector.

9.

Remove power steering gear from vehicle.

INSTALLATION

●

Install in the reverse order of removal.

●

Install pipe connector.

SGIA0662E

SFA794BA

1

Lower-pressure side 

 27.5 - 39.2 N·m (2.8 - 3.9 
kg-m, 21 - 28 ft-lb)

2

High-pressure side 

14.8 - 24.5 N·m (1.5 - 
2.4kg-m, 11 - 28 ft-lb)

SGIA0054E

PS-16

POWER STEERING GEAR AND LINKAGE

●

After installation, bleed system. Refer to 

PS-6, "Bleeding Hydraulic System"

 .

●

Follow the procedure below to install lower joint to power steer-
ing gear:

1.

Set rear cover cap projection into slot A in the gear sub-assem-
bly.

2.

Lock steering wheel by turning steering wheel clockwise by 60

°

from neutral position.

3.

Install lower joint to power steering gear while keeping position
shown at steps 1 and 2. Keep slit in lower section of lower joint
off rear cover cap projection.

4.

Unlock steering and set steering wheel in the neutral position.

5.

Check that rear cover cap projection is correctly positioned rela-
tive to slot A in the gear sub-assembly as shown in the illustration. 

PGIA0008E