2006 NISSAN PATROL head

Checking Steering Wheel Play
+With wheels in a straight-ahead position, check steering wheel
play.
Steering wheel play:
35 mm (1.38 in) or less
+If it is not within speci®cation, check the following for loose and
worn components.
Steering gear assembly
Steering linkage
Steering column
Front suspension and axle
Checking Neutral Position on Steering Wheel
Pre-checking
+Make sure that wheel alignment is correct.
Wheel alignment:
Refer to SDS in FA section.
+Verify that the steering gear is centered before removing the
steering wheel.
Checking
1. Check that the steering wheel is in the neutral position when
driving straight ahead.
2. If it is not in the neutral position, remove the steering wheel and
reinstall it correctly.
3. If the neutral position is between two teeth, loosen drag link lock
nuts. Adjust neutral position by turning drag link adjuster.
Front Wheel Turning Angle
1. Rotate steering wheel all the way right and left; measure turn-
ing angle.
Turning angle of full turns:
Refer to SDS in FA section.
2. If not within speci®cation, adjust using stopper bolt.
SST489B
SST490BA
SST756C
SMA127
SST773C
ON-VEHICLE SERVICE
ST-4

Removal and Installation
V1Air bag module
V2Steering wheel
V3Spiral cable
V4Combination switch
V5Steering column assembly
V6Column cover
V7Lower shaft
V8Coupling
CAUTION:
+The rotation of the spiral cable (SRS ``Air bag'' component
part) is limited. If the steering gear must be removed, set
the front wheels in the straight-ahead direction. Do not
rotate the steering column while the steering gear is
removed.
+Remove the steering wheel before removing the steering
lower joint to avoid damaging the SRS spiral cable.
STEERING WHEEL
+Remove air bag module and spiral cable. Refer to RS section
(``Removal Ð Air Bag Module and Spiral Cable'', ``SUPPLE-
MENTAL RESTRAINT SYSTEM'').
SST758C
SBF812E
STEERING WHEEL AND STEERING COLUMN
ST-8

+Align spiral cable correctly when installing steering wheel.
a. Set the front wheels in the straight-ahead position.
b. Make sure that the spiral cable is in the neutral position.
The neutral position is detected by turning left 2.5 revolutions
from the right end position. Align the two marks (
,
m).
CAUTION:
The spiral cable may snap due to steering operation if the
cable is installed in an improper position.
Also, with the steering linkage disconnected, the cable may
snap by turning the steering wheel beyond the limited number
of turns. (The spiral cable can be turned up to 2.5 turns from
the neutral position to both the right and left.)
+Remove steering wheel with Tool.
STEERING COLUMN
+When installing steering column, ®ngertighten all lower bracket
and clamp retaining bolts; then tighten them securely. Do not
apply undue stress to steering column.
+When attaching coupling joint, be sure tightening bolt faces
cutout portion.
SRS276
SST777C
SST759C
STEERING WHEEL AND STEERING COLUMN
Removal and Installation (Cont'd)
ST-9

Disassembly and Assembly
V1Combination switch
V2Lock nut
V3Jacket tube assembly
V4Tilt lever
V5Tilt spring
V6Steering column shaft assembly
V7Band
V8Column cover
V9Coupling
+When disassembling and assembling, unlock steering lock with
key.
+Install lock nut on steering column shaft and tighten the nut to
speci®cation.
: 25-34Nzm (2.5 - 3.5 kg-m, 18 - 25 ft-lb)
+Steering lock
a. Break self-shear type screws with a drill or other appropriate
tool.
b. Install new self-shear type screws and then cut off self-shear
type screw heads.
SST760C
SST490C
SST742A
STEERING WHEEL AND STEERING COLUMN
ST-10

b. Turn stub shaft all the way to right and left several times.
c. Measure turning torque at 360É position from straight-ahead
position with Tools.
Turning torque at 360É
0.15 - 0.78 Nzm (1.5 - 8.0 kg-cm, 1.3 - 6.9 in-lb)
2. Measure turning torque at straight-ahead position.
Straight-ahead position is a position where stub shaft is
turned 2.14 turns (two full turns and 50É) from lock position.
Turning torque at straight-ahead position:
0.2 - 0.5 Nzm (2 - 5 kg-cm, 1.7 - 4.3 in-lb)
higher than turning torque at 360É
Maximum turning torque:
0.44 - 1.18 Nzm (4.5 - 12 kg-cm, 3.9 - 10.4 in-lb)
3. Check sector shaft end play in neutral position.
End play:
Less than 0.1 mm (0.004 in)
If turning torque and end play are not within speci®cations,
replace power steering gear assembly.
SST652AA
POWER STEERING GEAR (Model: PB69K)
Inspection (Cont'd)
ST-14

POWER STEERING SYSTEM
(Model: PB69K)
Steering wheel turning force
(at 360É from neutral posi-
tion and circumference of
steering wheel) N (kg, lb)39 (4, 9) or less
Oil pump pressure
kPa (bar, kg/cm
2, psi)8,140 - 8,728
(81.4 - 87.3, 83 - 89, 1,180 - 1,266)
at idling
Fluid capacity
m!(Imp ¯ oz)Approximately 1,000 (35.2)
Normal operating tempera-
ture ÉC (ÉF)60 - 80 (140 - 176)
Steering gear turning torque
Nzm (kg-cm, in-lb)
360É position from
straight-ahead position0.15 - 0.78 (1.5 - 8.0, 1.3 - 6.9)
Straight-ahead position
(As compared with steer-
ing wheel turned 360É)0.2 - 0.5 (2 - 5, 1.7 - 4.3) higher
Maximum turning torque 0.44 - 1.18 (4.5 - 12, 3.9 - 10.4)
Backlash at pitman arm top
end (in a straight-
ahead position) mm (in)0 - 0.1 (0 - 0.004)
End play (at sector shaft
end in neutral position)
mm (in)0.1 (0.004) or less
SERVICE DATA AND SPECIFICATIONS (SDS)
Inspection and Adjustment (Cont'd)
ST-23