NISSAN PRIMERA 1999 Electronic Repair Manual

Checking Hydraulic System
Before starting, check belt tension, driving pulley and tire pres-
sure.
1. Set Tool. Open shut-off valve. Then bleed air. (See ªBleed-
ing Hydraulic Systemº.)
2. Run engine.
Make sure temperature of fluid in tank rises to 60 to 80ÉC
(140 to 176ÉF).
WARNING:
Warm up engine with shut-off valve fully opened. If engine
is started with shut-off valve closed, oil pressure in oil pump
will increase to relief pressure, resulting in an abnormal rise
in oil temperature.
3. Check pressure with steering wheel fully turned to left and
right positions with engine idling at 1,000 rpm.
CAUTION:
Do not hold the steering wheel in a locked position for more
than 15 seconds.
Oil pump maximum standard pressure:
QG: 7,502 - 8,101 kpa
(75 - 81 bar, 76.5 - 82.6 kg/cm
2,
1,088 - 1,175 psi)
SR: 7,002 - 7,600 kPa
(70 - 76 bar, 71.4 - 77.5 kg/cm
2,
1,015 - 1,102 psi)
CD: 7,690 - 8,493 kpa
(77 - 85 bar, 78,5 - 86,6 kg/cm
2,
1,116 - 1,231 psi)
4. If oil pressure is below the standard pressure, slowly close
shut-off valve and check pressure.
lWhen pressure reaches above standard pressure, gear is
damaged.
lWhen pressure remains below standard pressure, pump is
damaged.
CAUTION:
Do not close shut-off valve for more than 15 seconds.
5. After checking hydraulic system, remove Tool and add fluid
as necessary, then completely bleed air out of system.
SST834 ST27091000
Pump
TankGearHigh-
pressure
hose
Direction of oil flowLow-pressure
hose
ON-VEHICLE INSPECTION
ST-8

CAUTION:
lThe 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.
lRemove the steering wheel before removing the steering
lower joint to avoid damaging the SRS spiral cable.
NST019 Upper column cover
Steering column
assembly
Ignition switch grommet
Lower column cover
13-18
(1.3 - 1.8, 9 - 13)
15-19
(1.5 - 1.9, 11 - 14)
Push-on nut
: N´m (kg-m, ft-lb)
SEC. 484×487×488Spiral cable
Steering wheel
29-39
(3.0 - 4.0,
22 - 29)Horn pad (Includ-
ing Airbag mod-
ule)
STEERING WHEEL AND STEERING COLUMN
ST-9

Removal and Installation
STEERING WHEEL
lRemove screws from both sides of steering wheel and pull
out horn pad. Refer to RS section for Air Bag Module and
Spiral Cable Removal.
lAlign spiral cable correctly when installing steering wheel.
Refer to RS-section.
STEERING COLUMN
lWhen installing steering column, fingertighten all lower
bracket and clamp retaining bolts; then tighten them
securely. Do not apply undue stress to steering column.
lWhen attaching coupling joint, be sure tightening bolt faces
cutout portion.
lAlign slit of lower joint with projection on dust cover. Insert
joint until surface A contacts surface B.
CAUTION:
After installing steering column, turn steering wheel to make
sure it moves smoothly and that the number of turns from
the straight forward position to left and right locks are equal.
Be sure that the steering wheel is in a neutral position when
driving straight ahead.
NBF004
NST003
SST491C Steering gear
STEERING WHEEL AND STEERING COLUMN
ST-10

Disassembly and Assembly
WARNING:
Refer to `PRECAUTIONSº (on page ST-2) and to RS section
for spiral cable servicing information.
lTo remove combination switch, remove attaching screws,
disconnect harnesses and remove switch.
NST020 Boot Combination
switch assembly
24-29
(2.4 - 3.0,
17 - 22) Jacket tube assemblyWasherSpiral cable assy
: N´m (kg-m, ft-lb)
: Do not re-use
SEC. 488
O-ring
Snap ring
24-29
(2.4 - 3.0, 17 - 22)
Lower jointColumn shaft assembly
NST021 Screws remain captive in switch
Remove
STEERING WHEEL AND STEERING COLUMN
ST-11

lEnsure that rounded surface of snap ring faces toward bear-
ing when snap ring is installed.
lInstall snap ring on upper shaft with a suitable tool.
lSteering lock
a. Break self-shear type screws with a drill or other appropriate
tool.
b. Install self-shear type screws and then cut off self-shear type
screw heads.
Inspection
Tilt mechanism
lAfter installing steering column, check tilt mechanism opera-
tion.
SST770A
SST741A
SST742A
SST582B
STEERING WHEEL AND STEERING COLUMN
Disassembly and Assembly (Cont'd)
ST-12

lWhen steering wheel does not turn smoothly, check the
steering column as follows and replace damaged parts.
a. Check column bearings for damage or unevenness. Lubri-
cate with recommended multi-purpose grease or replace
steering column as an assembly, if necessary.
b. Check jacket tube for deformation or breakage. Replace if
necessary.
lWhen the vehicle is involved in a light collision, check column
length ªLº. If it is not within specifications, replace steering
column as an assembly.
Column length ªLº:
536.0 - 538.0 mm (21.10 - 21.18 in)
SST583B
STEERING WHEEL AND STEERING COLUMN
Inspection (Cont'd)
ST-13

Removal and Installation
lDetach tie-rod outer sockets from knuckle arms with Tool.
CAUTION:
lThe rotation of the spiral cable (SRS ªAir bagº compo-
nent 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.
lRemove the steering wheel before removing the steering
lower joint to avoid damaging the SRS spiral cable.
lRemove low and high pressure connectorsp1andp2.
lRemove exhaust front tube.
SST584B
: Do not re-use
SEC. 492
SFA372 HT72520000
SST574B
POWER STEERING GEAR AND LINKAGE
ST-14

lRemove dust cover from steering lower joint. Remove joint.
lRemove harness from subframe mounting bracket.
lRemove gear housing brackets.
lSupport transmission housing with engine jack.
lRemove center member with engine mounting rear bracket.
lGuide transfer tube over harness mounting bracket. Slide
gear to left side of vehicle, lower and remove from right side
as illustrated.
SST578B
UST003
SST577B
SST579B
.SST581B
POWER STEERING GEAR AND LINKAGE
Removal and Installation (Cont'd)
ST-15

lInstall pipe connector.
lObserve specified tightening torque when tightening high-
pressure and low-pressure pipe connectors. Excessive tight-
ening can damage threads or damage connector O- ring.
lThe O-ring in low-pressure pipe connector is larger than that
in high-pressure connector. Take care to install the correct
O-ring.
Connector tightening torque:
Low-pressure side ª
p1º
20 - 25 N´m (2.0 - 2.6 kg-m, 14 - 19 ft-lb)
High-pressure side ª
p2º
15 - 25 N´m (1.5 - 2.5 kg-m, 11 - 18 ft-lb)
lEnsure that steering gear is correctly aligned in housing
brackets, and that transfer tubes do not foul bulkhead or
subframe.
lInitially, tighten nut on tie-rod outer socket and knuckle arm
to 29 to 39 N´m (3 to 4 kg-m, 22 to 29 ft-lb). Then tighten
further to align nut groove with first pin hole so that cotter pin
can be installed.
CAUTION:
Tightening torque must not exceed 49 N´m (5 kg-m, 36 ft-lb).
SST574B
SST824A
POWER STEERING GEAR AND LINKAGE
Removal and Installation (Cont'd)
ST-16

Disassembly
Always use soft jaws when clamping steering gear housing
in a vise. Handle gear housing carefully, as it is made of
aluminum.
1. Remove outer tie-rod.
2. Remove dust boot.
Inspection
Thoroughly clean all parts in cleaning solvent or automatic trans-
mission fluid ªDexronTMº type, and blow dry with compressed air,
if available.
SST585B
SEC. 492
NST022
.Jaw
protectors
POWER STEERING GEAR AND LINKAGE
Removal and Installation (Cont'd)
ST-17