Infiniti M45 (Y34). Manual — part 704
STEERING WHEEL
PS-7
C
D
E
F
H
I
J
K
L
M
A
B
PS
STEERING WHEEL
PFP:48430
On-Vehicle Service
AGS000A6
●
Checking condition of installation
Check installation condition of steering gear assembly, front sus-
pension, axle and steering column.
●
Check if movement exists when steering wheel is moved up and
down, to the left and right and to the axial direction.
●
Check if the mounting bolts for the steering gear are loose or
not.
CHECKING STEERING WHEEL PLAY
1.
Set the tires to the straight ahead direction, start the engine,
then turn the steering wheel to the left and right lightly, and mea-
sure the steering wheel movement on the outer circumference
when the steering wheel is turned up to the tires start moving.
●
It is not within specification, check the following for loose or
worn components.
–
Steering gear assembly
–
Steering column
–
Front suspension and axle
CHECKING NEUTRAL POSITION ON STEERING WHEEL
●
Check neutral position on steering wheel after confirming that front wheel alignment is correct. Refer to
FSU-6, "Wheel Alignment Inspection"
1.
Set the vehicle to the straight ahead direction, check if steering wheel is in the neutral position.
2.
If it is not in the neutral position, remove the steering wheel and reinstall it correctly.
3.
If the neutral position cannot adjust in the two teeth of steering column shaft, loosen tie-rod lock nuts of
steering outer sockets, then adjust the tie-rods by the same amount in the opposite direction.
CHECKING STEERING WHEEL TURNING TORQUE
1.
Park vehicle on a level in the dry surface, set parking brake.
2.
Remove driver air bag module from the steering wheel. Refer to
SRS-38, "DRIVER AIR BAG MODULE"
3.
Start the engine at idle, make steering fluid reach to normal
operating temperature, then check steering wheel turning torque
with the pre-load gauge (special service tool).
4.
If steering wheel turning force is out of specification, check relief hydraulic pressure of the oil pump. Refer
to
End play of the axle direction for steering wheel:
0 mm (0 in)
Tightening torque:
135 - 164 N·m (14 - 16 kg-m, 100 - 120 ft-lb)
SGIA0383E
Steering wheel play
: 0 - 35 mm (0 - 1.38 in)
SST489B
Turning torque:
Less than 7.45 N·m (0.76 kg-m, 66 in-lb)
SGIA0480E
PS-8
STEERING WHEEL
CHECKING FRONT WHEEL TURNING ANGLE
●
Check front wheel turning angle after the toe-in inspection.
Place the front wheels on turning radius gauges and the rear
wheels on stands so that the vehicle can be level. Check the
maximum inner and outer wheel turning angles for LH and RH
road wheels.
●
Start engine and run at idle, turn the steering wheel all the way
right and left, measure the turning angle.
●
If it is not within specification, measure the rack strokes.
●
If the rack stroke is out of specification, disassemble steering
gear to check the rack stroke.
●
Turning angles are not adjustable. If any of the steering angles
is not within specification, check the following components for
wear or damage.
–
Steering gear
–
Steering column
–
Front suspension components
If they are damaged, replace with new one respectively.
Removal and Installation
AGS000A7
Refer to
.
FAA0016D
Turning angle at full turns
Inner wheel (Angle: A)
Minimum
30
°
55
′
(30.92
°
)
Nominal
33
°
55
′
(33.92
°
)
Maximum
34
°
55
′
(34.92
°
)
Outer wheel (Angle: B)
Nominal
28
°
45
′
(28.75
°
)
SGIA0055E
Rack stroke “L”
: 60 mm (2.36 in)
STC0034D
STEERING COLUMN
PS-9
C
D
E
F
H
I
J
K
L
M
A
B
PS
STEERING COLUMN
PFP:48810
Removal and Installation
AGS0008E
NOTE:
●
Care must be taken not to give axial impact to steering column assembly during removal and installation.
●
Care must be taken not to move steering gear during removal of steering column assembly.
REMOVAL
1.
Set vehicle to straight-ahead direction.
2.
Remove driver air bag module. Refer to
SRS-38, "DRIVER AIR BAG MODULE"
.
3.
Remove steering upper and lower covers.
4.
Remove combination switch & spiral cable. Refer to
5.
Remove hood opener.
1.
Driver air bag module
2.
Steering wheel lock nut
3.
Steering wheel
4.
Steering wheel switch
5.
Lower lid
6.
Combination switch & spiral cable
7.
Column upper cover
8.
Column lower cover
9.
Tilt switch
10. Steering column assembly
11. Ignition switch
12. Collar
13. Special bolt
14. Upper joint
15. Hole cover
16. Lower shaft
17. Lower joint
SGIA0385E
PS-10
STEERING COLUMN
6.
Remove cover of ignition switch.
7.
Remove screw for the instrument lower driver panel as shown in
the figure.
8.
Disconnect the TCS OFF switch harness connector, data link
connector for CONSULT-II.
9.
Disconnect steering lock harness connector from steering col-
umn.
10. Remove knee protector lower. Refer to
11. Separate steering column shaft from upper joint in the following
procedure.
a.
Loosen nut of special bolt for the lower yoke of upper joint.
NOTE:
Do not reuse nut for special bolt.
b.
Turn steering wheel to the left to appear set ribs of collar.
c.
Fix steering wheel with a string in order not to turn then, remove
special bolt and nut.
d.
Expand the set ribs outside of yoke lightly, then disengage them
from yoke.
e.
Raise yoke to separate from collar. As a result, steering column
shaft separates from upper joint.
CAUTION:
Be careful to handle collar because it is easily broken.
12. Remove mounting bolts and nuts from steering column assem-
bly, then remove it from the vehicle.
SGIA0387E
SGIA0388E
SGIA0389E
SGIA0390E
SGIA0391E
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