steering INFINITI M35 2007 Factory Service Manual

STEERING COLUMN
PS-13
C
D
E
F
H
I
J
K
L
MA
B
PS
Revision: 2007 April2007 M35/M45
STEERING COLUMNPFP:48810
Removal and InstallationNGS000DA
COMPONENTS
CAUTION:

Do not give axial impact to steering column assembly during removal and installation.

Do not move steering gear assembly when removing steering column assembly.
1. Steering wheel 2. Combination switch & spiral cable 3. Steering column assembly
4. Upper joint 5. Collar 6. Hole cover seal
7. Clamp 8. Hole cover 9. Lower shaft
10. Lower joint
Refer to GI-11, "
Components" , for the symbols in the figure.
SGIA1172E

PS-14
STEERING COLUMN
Revision: 2007 April2007 M35/M45
REMOVAL OF UPPER JOINT, COLLAR, HOLE COVER SEAL, HOLE COVER, LOWER SHAFT
AND LOWER JOINT
1. Set vehicle to the straight ahead-position.
2. Remove fixing bolts and nut of upper joint (1), then remove
upper joint (1), collar (2) from lower shaft and steering column
assembly.
3. Raise vehicle.
4. Remove lower side fixing bolt of lower joint.
5. Remove upper side fixing bolt of lower joint, then remove lower
joint from lower shaft and steering gear assembly.
6. Remove lower shaft from vehicle.
7. Lowering vehicle.
8. Loosen clamp, and then remove hole cover seal from hole
cover.
9. Remove mounting nuts of hole cover, and then remove clamp
and hole cover from dash panel.
INSPECTION AFTER REMOVAL
Check each part of upper joint, collar, hole cover seal, hole cover, lower shaft and lower joint for damage or
other malfunctions. Replace if there are.
INSTALLATION OF UPPER JOINT, COLLAR, HOLE COVER SEAL, HOLE COVER, LOWER
SHAFT AND LOWER JOINT

Installation is the reverse order of removal. For tightening torque, refer to PS-13, "COMPONENTS" .

When installing upper joint, the angle which upper joint yoke (1)
forms with shaft center groove (A) should be at 90°.

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.
SGIA1181E
SGIA0844E
SGIA0845E
SGIA1290E

STEERING COLUMN
PS-15
C
D
E
F
H
I
J
K
L
MA
B
PS
Revision: 2007 April2007 M35/M45
–Align rear cover cap projection (A) with the marking position (B)
of gear housing assembly.
–Install slit part of lower joint (C) aligning with the projection (A) of
rear cover cap (1). Make sure that the slit part of lower joint (C)
is aligned with projection (A) of rear cover cap (1) and the mark-
ing position (B) of gear housing assembly.

Adjust neutral position of steering angle sensor. Refer to BRC-6,
"Adjustment of Steering Angle Sensor Neutral Position" .
REMOVAL OF STEERING COLUMN ASSEMBLY
1. Set vehicle to the straight-ahead position.
2. Remove driver air bag module. Refer to SRS-42, "
DRIVER AIR BAG MODULE" .
3. Remove steering wheel. Refer to PS-12, "
Removal and Installation" .
4. Remove steering column cover. Refer to IP-10, "
INSTRUMENT PANEL ASSEMBLY" .
5. Remove combination switch & spiral cable. Refer to SRS-44, "
SPIRAL CABLE" .
6. Remove instrument driver lower panel. Refer to IP-10, "
INSTRUMENT PANEL ASSEMBLY" .
7. Remove fixing bolts of knee protector (1), then remove knee
protector (1) from vehicle.
8. Remove low tire pressure warning control unit. Refer to WT-40,
"Low Tire Pressure Warning Control Unit" .
9. Disconnect each switch connectors installed to steering column
assembly, and then disconnect harness from steering column
assembly.
10. Remove fixing bolt of upper joint (1) (steering column assembly
side).
11. Remove steering column assembly mounting bolts and nut, then
remove steering column assembly from vehicle.
SGIA1175E
SGIA1176E
SGIA1182E

PS-16
STEERING COLUMN
Revision: 2007 April2007 M35/M45
INSPECTION AFTER REMOVAL

Check each part of steering column assembly for damage or other malfunctions. Replace if there are.

Measure the length L as shown in the figure if vehicle has been
involved in a minor collision. Replace steering column assembly
if outside the standard.

Measure steering column assembly rotating torque using preload gauge [SST: ST3127S000]. Replace
steering column assembly if outside the standard.
INSTALLATION OF STEERING COLUMN ASSEMBLY

Installation is the reverse order of removal. For tightening torque, refer to PS-13, "COMPONENTS" .

When installing upper joint, the angle which upper joint yoke (1)
forms with shaft center groove (A) should be at 90°.

Adjust neutral position of steering angle sensor. Refer to BRC-6,
"Adjustment of Steering Angle Sensor Neutral Position" .
INSPECTION AFTER INSTALLATION
Make sure that steering wheel operates smoothly by turning several times from full left stop to full right stop.
SGIA1177E
Steering column length LTelescopic maximum 551 – 555 mm (21.69 – 21.85 in)
Telescopic minimum 591 – 595 mm (23.27 – 23.43 in)
Rotating torque : 0 – 0.2 N·m (0 – 0.02 kg-m, 0 – 1 in-lb)
SGIA1290E

STEERING COLUMN
PS-17
C
D
E
F
H
I
J
K
L
MA
B
PS
Revision: 2007 April2007 M35/M45
Disassembly and AssemblyNGS000DB
COMPONENTS
DISASSEMBLY
1. Remove fixing screws of telescopic sensor, and then remove telescopic sensor from steering column.
2. Remove fixing screw of bracket, and then remove bracket from telescopic motor.
3. Remove fixing bolt of telescopic motor, and then remove telescopic motor from steering column.
4. Remove fixing screws of tilt sensor, and then remove tilt sensor from steering column.
5. Remove fixing bolt of tilt motor, and then remove tilt motor from steering column.
6. Remove fixing screws of brackets, and then remove brackets from steering column.
INSPECTION AFTER DISASSEMBLY
Check component parts for damage or other malfunctions. Replace if there are.
ASSEMBLY
Assembly is the reverse order of disassembly. For tightening torque, refer to PS-17, "COMPONENTS" .
1. Bracket 2. Bracket 3. Steering column
4. Telescopic motor 5. Bracket 6. Telescopic sensor
7. Tilt sensor 8. Tilt motor 9. Bracket
10. Bracket
Refer to GI-11, "
Components" , for the symbols in the figure.
SGIA1634E

PS-18
STEERING COLUMN
Revision: 2007 April2007 M35/M45
INSPECTION AFTER ASSEMBLY
Check tilt and telescopic mechanism operating range L1 , L2 as
shown in the figure.
Tilt operating range L
1: 37.5 mm (1.476 in)
Telescopic operating range L
2: 40 mm (1.57 in)
SGIA1179E

POWER STEERING GEAR AND LINKAGE
PS-19
C
D
E
F
H
I
J
K
L
MA
B
PS
Revision: 2007 April2007 M35/M45
POWER STEERING GEAR AND LINKAGEPFP:49001
Removal and InstallationNGS000DC
COMPONENTS
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.
REMOVAL
1. Set vehicle to the straight-ahead position.
2. Remove tires from vehicle with a power tool.
3. Remove undercover from vehicle with a power tool.
4. Remove lower side fixing bolt of lower joint.
5. Remove cotter pin (1), and then loosen the nut.
6. Remove steering outer socket (2) from steering knuckle (3) so
as not to damage ball joint boot (4) using the ball joint remover
(suitable tool).
CAUTION:
Temporarily tighten the nut to prevent damage to threads
and to prevent the ball joint remover from suddenly coming
off.
7. Remove high and low pressure piping of hydraulic piping, and
then drain power steering fluid. Refer to PS-39, "
HYDRAULIC
LINE" .
1. Cotter pin 2. Steering gear assembly 3. Steering gear assembly
(AWD models)
Refer to GI-11, "
Components" , for the symbols in the figure.
SGIA1387E
SGIA0844E
SGIA1183E

PS-20
POWER STEERING GEAR AND LINKAGE
Revision: 2007 April2007 M35/M45
8. Remove steering hydraulic piping bracket from front suspension member. Refer to PS-39, "HYDRAULIC
LINE" .
9. Remove power steering solenoid valve harness connector. Refer to PS-21, "
COMPONENTS" .
10. Remove rack stay (2WD) or front cross bar (AWD). Refer to FSU-8, "
Components" , FSU-26, "Compo-
nents" .
11. Remove mounting bolts and nuts of steering gear assembly, and then remove steering gear assembly
from vehicle.
INSTALLATION
Installation is the reverse order of removal. For tightening torque, refer to PS-19, "COMPONENTS" .

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.
–Align rear cover cap projection (A) with the marking position (B)
of gear housing assembly.
–Install slit part of lower joint (C) aligning with the projection (A) of
rear cover cap (1). Make sure that the slit part of lower joint (C)
is aligned with both the projection (A) of rear cover cap (1) and
the marking position (B) of gear housing assembly.

After installation, bleed air from the steering hydraulic system.
Refer to PS-8, "
Air Bleeding Hydraulic System" .

Perform final tightening of nuts and bolts on each part under
unladen conditions with tires on level ground when removing
steering gear assembly. Check wheel alignment. Refer to FSU-
6, "Wheel Alignment Inspection" , FSU-24, "Wheel Alignment
Inspection" .

Adjust neutral position of steering angle sensor after checking wheel alignment. Refer to BRC-6, "Adjust-
ment of Steering Angle Sensor Neutral Position" .
INSPECTION AFTER INSTALLATION
Make sure that steering wheel operates smoothly by turning several times from full left stop to full right stop.
SGIA1175E

POWER STEERING GEAR AND LINKAGE
PS-21
C
D
E
F
H
I
J
K
L
MA
B
PS
Revision: 2007 April2007 M35/M45
Disassembly and AssemblyNGS000DD
COMPONENTS
CAUTION:

Disassemble and assemble steering gear assembly by securing the mounting area in a vise using
copper plates.

Clean steering gear assembly with kerosene before disassembling. Be careful to avoid splashing
or applying any kerosene over connector of discharge port or return port.
1. Outer socket 2. Boot clamp 3. Boot
4. Inner socket 5. Boot clamp (stainless wire) 6. End cover assembly
7. Rack oil seal 8. Rack Teflon ring 9. O-ring
10. Rack assembly 11. Gear housing assembly 12. Cylinder tubes
13. O-ring 14. Gear-sub assembly 15. power steering solenoid valve
16. Rear cover cap
Refer to GI-11, "
Components" , and the followings for the symbols in the figure.
: Apply power steering fluid.
: A p p l y G e n u i n e L i q u i d G a s k e t , T h r e e B o n d 1111 B o r e q u i v a l e n t .
: Apply multi-purpose grease.
SGIA1388E

PS-22
POWER STEERING GEAR AND LINKAGE
Revision: 2007 April2007 M35/M45
DISASSEMBLY
1. Remove fixing bolts of power steering solenoid valve, and then remove power steering solenoid valve
from gear-sub assembly.
2. Remove cylinder tubes from gear housing assembly.
3. Remove rear cover cap from gear-sub assembly.
4. Measure adjusting screw height “H”, and loosen adjusting
screw.
CAUTION:

Do not loosen adjusting screw 2 turns or more.

Replace steering gear assembly if adjusting screw is
loosened 2 turns or more and it is removed.
5. Remove fixing bolts of gear-sub assembly, and then remove
gear-sub assembly from gear housing assembly.
6. Remove O-ring from gear housing assembly.
7. Loosen outer socket lock nut, and remove outer socket.
8. Remove boot clamp, and then remove boot from inner socket.
CAUTION:
Do not damage inner socket and gear housing assembly when removing boot. Inner socket and
gear housing assembly must be replaced if inner socket and gear housing assembly are damaged
because it may cause foreign material interfusion.
9. Remove inner socket from gear housing assembly.
10. Drill out the clinching part of gear housing assembly (end cover
assembly side) outer rim with a 3 mm (0.12 in) drill bit. [Drill for
approximately 1.5 mm (0.059 in) depth.]
11. Remove end cover assembly with a 36 mm (1.42 in) open head
(suitable tool).
CAUTION:
Do not damage rack assembly surface when removing.
Rack assembly must be replaced if damaged because it
may cause fluid leakage.
12. Pull rack assembly together with rack oil seal (outer side) out
from gear housing assembly.
CAUTION:
Do not damage cylinder inner wall when removing rack
assembly. Gear housing assembly must be replaced if dam-
aged because it may cause fluid leakage.
13. Heat rack Teflon ring to approximately 40°C (104°F) with a
dryer, and remove rack Teflon ring and O-ring from rack assem-
bly.
CAUTION:
Do not damage rack assembly. Rack assembly must be
replaced if damaged because it may cause fluid leakage.
SGIA0624E
STC0013D
SST081B
SGIA0151E