NISSAN TERRANO 2004 Service Repair Manual

Removal and Installation
CAUTION:
IThe rotation of the spiral cable (SRS ªAir bagº 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.
I Remove the steering wheel before removing the steering
lower joint to avoid damaging the SRS spiral cable.
STEERING WHEEL
IRemove remote audio control (if applied).
I Remove air bag module and spiral cable.
Refer to RS-28, ªRemoval Ð Air Bag Module and Spiral Cableº.
YST020
SBF812E
STEERING WHEEL AND STEERING COLUMN
ST-8
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IAlign 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 (
).
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.)
I Remove steering wheel with Tool.
STEERING COLUMN
IWhen installing steering column, fingertighten upper support
bracket bolts and lower support bracket nuts; then tighten them
to the specified torque. Do not apply undue stress to steering
column.
I When attaching coupling joint, be sure tightening bolt faces
cutout portion.
I When inserting coupling joint onto steering gear axle, make
sure that it is positioned correctly.
CAUTION:
After installing steering column, turn steering wheel to make
sure it moves smoothly and that the number of turns from the
straight-ahead forward position to left and right locks are
equal. Be sure that the steering wheel is in a neutral position
when driving straight ahead. Number of steering wheel turns from straight-ahead
position:Right 1.93
Left 1.93
SRS266
SST777C
NST005
STEERING WHEEL AND STEERING COLUMN
Removal and Installation (Cont'd)
ST-9
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Disassembly and Assembly
L.H.D., R.H.D.
IWhen disassembling and assembling, unlock steering lock with
key.
I Install snap ring on upper shaft with box wrench.
YST065
NST007
SST628A
STEERING WHEEL AND STEERING COLUMN
ST-10
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IAfter installing steering column, check tilt mechanism opera-
tion.
L
1:8-12mm (0.32 - 0.47 in)
L
2: 18 - 22 mm (0.71 - 0.87 in)
I Steering lock
a. Break self-shear type screws with a drill or other appropriate tool.
b. Install self-shear type screws until self-shear type screw heads are cut off.
I When disassembling and assembling, unlock steering lock with
key.
I Ensure that rounded surface of snap ring faces towards bear-
ing when snap ring is installed.
Inspection
IWhen steering wheel can not be rotated smoothly, check the
steering column for the following matters and replace damaged
parts:
a. Check column bearings for damage or unevenness. Lubricate with recommended multi-purpose grease or replace steering
column as an assembly, if necessary.
b. Check jacket tube for deformation or breakage. Replace if nec- essary.
I When the vehicle is involved in a light collision, check column
length ªLº. If it is not within specifications, replace steering col-
umn assembly ªL
1º.
Column length: ªL
1º: 830.5 - 832.7 mm (32.697 - 32.783 in)
EST006
SST300A
SST301A
EST007
STEERING WHEEL AND STEERING COLUMN
Disassembly and Assembly (Cont'd)
ST-11
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Description
YST060
POWER STEERING GEAR
ST-12
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YST061
POWER STEERING GEAR
Description (Cont'd)ST-13
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Removal and Installation
Before removing, clean exteriors of gear housing and oil pump
with steam and dry with compressed air.
STEERING GEAR
IThe steering gear must not be disassembled. Replace as an
assembly.
I Remove only the parts shown in the illustration.
NST008
POWER STEERING GEAR
ST-14
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Inspection and Adjustment
STEERING GEAR PRELOAD
Measure preload in worm gear.
1. Mount steering gear to Tool (KV48100301) and place it in avise, as shown in the illustration.
2. Turn worm gear several times by hand completely to the left and right (full lock to lock).
3. Measure preload at  360É from straight-ahead position.
a. Turn worm gear counterclockwise until full lock position. Then turn clockwise more than two turns until the straight-
ahead position.
Straight-ahead position is the position where the two mat-
ing marks are in line (approx. 765É from full lock position).
b. Turn worm gear one full turn (360É) clockwise and measure total preload at this position.
c. Turn worm gear two full turns (720É) counterclockwise and measure total preload.Total preload at  360É from straight-ahead position:
: 0.4 - 1.2 N ×m (0.04 - 0.12 kg-m, in-lb)
4. Measure total preload at straight-ahead position.
a. Place worm gear in straight-ahead position. See step 3.a.
b. Measure total preload in straight-ahead position. Total preload at straight-ahead position:
: 0.6 - 1.6 N ×m (0.06 - 0.16 kg-m ,5-14in-lb)
5. If either one of the above measured values are not within specifications, adjust total preload by turning sector shaft
adjusting screw. Tighten adjusting screw lock nut with tools.Lock nut:
:30N ×m (3 kg-m, 22 ft-lb)
YST022
YST023
SST653A
EST011
POWER STEERING GEAR
ST-15
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Removal and Installation
YST062
POWER STEERING OIL PUMP
ST-16
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Removal and Installation
YST063
STEERING LINKAGE
ST-17
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