front axle NISSAN PATROL 2006 Service Manual

Edition: February 1998
Release: February 1998 (01)
Publication No.: SM8E-0Y61E0E
Reference No.: 7711346063GENERAL INFORMATIONGI
MAINTENANCEMA
ENGINE MECHANICALEM
ENGINE LUBRICATION &
COOLING SYSTEMSLC
ENGINE CONTROL SYSTEMEC
ACCELERATOR CONTROL,
FUEL & EXHAUST SYSTEMFE
CLUTCHCL
MANUAL TRANSMISSIONMT
AUTOMATIC TRANSMISSIONAT
TRANSFERTF
PROPELLER SHAFT &
DIFFERENTIAL CARRIERPD
FRONT AXLE & FRONT SUSPENSIONFA
REAR AXLE & REAR SUSPENSIONRA
BRAKE SYSTEMBR
STEERING SYSTEMST
RESTRAINT SYSTEMRS
BODY & TRIMBT
HEATER & AIR CONDITIONERHA
ELECTRICAL SYSTEMEL
ALPHABETICAL INDEXIDX
PATROL GR
MODEL Y61 SERIES
NISSAN EUROPE S.A.S.
1998 NISSAN EUROPE S.A.S.
Produced in The Netherlands
Not to be reproduced in whole or in part
without the prior written permission of
Nissan Europe S.A.S., Paris, France.
QUICK REFERENCE INDEX

9. Set down weight slowly over axle center so that sensor springlength becomes the same as when in loaded condition (Refer
to table below). Check rear brake pressure in the same way
described in step 7.
4-door rear disc brake
Unit: kPa (bar, kg/cm2, psi)
Sensor spring
length ``L''* mm (in) Front brake
pressure
4,904 (49.0, 50, 711) Front brake
pressure 9,807
(98.1, 100, 1,422)
Rear brake
pressure Without
weight 175.2 - 178.2
(6.90 - 7.02) 2,158 - 3,138
(21.58 - 31.38, 22.0 - 32.0,313 - 455) 3,629 - 4,609
(36.29 - 46.09, 37.0 - 47.0,526 - 668)
With
weight 193.6 - 196.6
(7.62 - 7.74) 2,746 - 4,707
(27.46 - 47.07, 28.0 - 48.0,398 - 683) 4,217 - 6,178
(42.17 - 61.78, 43.0 - 63.0,611 - 896)
*: Depressed brake pedal.
10. Bleed air after disconnecting the tool. Refer to ``Bleeding Brake System'', BR-4.
11. Install front LH tire.
REMOVAL AND INSTALLATION
CAUTION:
+ Re®ll with new brake ¯uid ``DOT 3''.
+ Be careful not to splash brake ¯uid on painted areas; it
may cause paint damage. If brake ¯uid is splashed on
painted areas, wash it away with water immediately.
+ Do not reuse Load Sensing Valve once it is disassembled.
+ Replace damaged Load Sensing Valve as an assembly.
+ When disassembling, apply multi-purpose grease to all rubbing
areas.
SBR378D
BRAKE HYDRAULIC LINE/CONTROL VALVE
Load Sensing Valve (Cont'd)
BR-8

Removal and Installation
CAUTION:
Be careful not to damage sensor edge and sensor rotor teeth.
When removing the front wheel hub or rear axle shaft
assembly, disconnect the ABS wheel sensor from the assem-
bly and move it away.
FRONT WHEEL SENSOR
SBR187E
ANTI-LOCK BRAKE SYSTEM
BR-36

Diagnostic Procedure 7 (ABS works
frequently.)
CHECK BRAKE FLUID PRESSURE.
- ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Check brake ¯uid pressure distribution.
Refer to proportioning valve inspection.
OK
cNG Perform Preliminary
Check, refer to BR-40.
CHECK WHEEL SENSOR.
- ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
1. Check wheel sensor connector for ter- minal damage or loose connections.
2. Perform wheel sensor mechanical check.
Refer to Diagnostic Procedure 1,
BR-57.
OK
cNG Repair.
CHECK FRONT AXLES.
- ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Check front axles for excessive loose-
ness. Refer to FA section (``Front Wheel
Bearing'', ``ON-VEHICLE SERVICE'').
OK
cNG Repair.
Go toin Diagnostic Procedure 8,
BR-66.
.
.
.
TROUBLE DIAGNOSES FOR SYMPTOMS
BR-66

FRONT AXLE &
FRONT SUSPENSION
SECTION
FA
CONTENTS
PRECAUTIONS AND PREPARATION............................1
Precautions ..................................................................1
Special Service Tools ..................................................1
Commercial Service Tools ...........................................2
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING.....................................................3
NVH Troubleshooting Chart.........................................3
FRONT AXLE AND FRONT SUSPENSION...................4
ON-VEHICLE SERVICE..................................................5
Front Axle and Front Suspension Parts ......................5
Front Wheel Bearing....................................................5
Front Wheel Alignment ................................................8
FRONT AXLE Ð Drive ¯ange and Free-running
Hub.................................................................................10
FRONT AXLE Ð Manual-lock Free-running Hub...... 11
Removal ..................................................................... 11
Installation ..................................................................12
Inspection...................................................................12
FRONT AXLE Ð Auto-lock Free-running Hub..........13
Removal .....................................................................13
Installation ..................................................................13FRONT AXLE Ð Wheel Hub and Rotor Disc............14
Removal and Installation ...........................................14
Inspection...................................................................15
Assembly ...................................................................15
FRONT AXLE Ð Knuckle Flange................................17
Removal .....................................................................17
Inspection...................................................................19
Installation ..................................................................19
Knuckle Flange Grease Seal.....................................21
FRONT AXLE Ð Drive Shaft.......................................23
Inspection...................................................................23
Installation ..................................................................23
FRONT SUSPENSION..................................................24
Shock Absorber .........................................................25
Stabilizer Bar .............................................................25
Coil Spring .................................................................25
Leading Arm...............................................................26
Panhard Rod..............................................................26
SERVICE DATA AND SPECIFICATIONS (SDS)..........27
General Speci®cations ...............................................27
Inspection and Adjustment ........................................27
FA

NVH Troubleshooting Chart
Use the chart below to help you ®nd the cause of the symptom. If necessary, repair or replace these parts.
Reference pageFA-4
FA-25
Ð
Ð
Ð
FA-24
FA-8
FA-25
FA-5
FA-8
Ð
Ð
Ð
Ð
Ð
Ð
Ð
FA-23
Ð
NVH in PD section
NVH in PD section
Refer to FRONT AXLE AND FRONT SUSPENSION in this chart.
NVH in RA section
Refer to TIRES in this chart.
Refer to ROAD WHEEL in this chart.
Refer to AXLE SHAFT in this chart.
NVH in BR section
NVH in ST section
Possible cause and SUSPECTED PARTS
Improper installation, looseness
Shock absorber deformation, damage or de¯ection
Bushing or mounting deterioration
Parts interference
Spring fatigue
Suspension looseness
Incorrect wheel alignment
Stabilizer bar fatigue
Wheel bearing damage
Out-of-round
Imbalance
Incorrect air pressure
Uneven tire wear
Deformation or damage
Non-uniformity
Incorrect tire size
Excessive joint angle
Joint sliding resistance
Imbalance
PROPELLER SHAFT
DIFFERENTIAL
FRONT AXLE AND FRONT SUSPENSION
REAR AXLE AND REAR SUSPENSION
TIRES
ROAD WHEEL
AXLE SHAFT
BRAKES
STEERING
SymptomFRONT
AXLE AND
FRONT
SUSPEN-
SIONNoiseXXXXXX XX XXXXXX
ShakeXXXX X X XXXXXX
VibrationXXXXX X XX X X
ShimmyXXXX X XXX XX
Judder X X XXXX XX
Poor quality ride
or handlingXXXXX XXX XXX
TIRESNoise XXXXXXX XXXX XXXX
Shake XXXXXX X X XX XXXX
Vibration X X X X X X X
Shimmy XXXXXXXX XX X XX
Judder XXXXXX X XX X XX
Poor quality ride
or handlingX XXXXX X XX X
ROAD
WHEELNoise X X X XXXXXX XXX
Shake X X X X X X X X X X X
Shimmy, judder X X X X X X X X X
Poor quality ride
or handlingX XX X XXX
AXLE
SHAFTNoise, vibration X XXXXXXX XX
ShakeX XX XXXX XX
X: Applicable
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
FA-3

SFA850B
FRONT AXLE AND FRONT SUSPENSION
FA-4

Front Axle and Front Suspension Parts
Check front axle and front suspension parts for excessive play,
cracks, wear and other damage.
+Shake each front wheel to check for excessive play.
+Make sure that cotter pin is inserted.
+Retighten all axle and suspensions nuts and bolts to the speci-
®ed torque.
Tightening torque:
Refer to FRONT SUSPENSION (FA-24).
+Check front axle and front suspension parts for wear, cracks
and other damage.
+Check shock absorber for oil leakage and other damage.
+Check knuckle ¯ange for grease leakage and knuckle ¯ange
grease seal for cracks and other damage.
Front Wheel Bearing
+Check that wheel bearings operate smoothly.
+Check axial end play.
Axial end play:
0mm(0in)
+Adjust wheel bearing preload if there is any axial end play or
wheel bearing does not turn smoothly.
SMA525A
SFA851B
SFA852B
SFA413A
ON-VEHICLE SERVICE
FA-5

PRELOAD ADJUSTMENT
Adjust wheel bearing preload after wheel bearing has been
replaced or front axle has been reassembled.
Adjust wheel bearing preload as follows:
1. Before adjustment, thoroughly clean all parts to prevent dirt
entry.
2. Apply multi-purpose grease sparingly to the following parts:
+Wheel hub (as shown at left)
+Wheel bearing
+Grease seal lip
+Contact surface between wheel bearing lock washer (cham-
fered side) and outer wheel bearing
3. Tighten wheel bearing lock nut with Tool.
: 167 - 196 Nzm (17 - 20 kg-m, 123 - 145 ft-lb)
4. Turn wheel hub several times in both directions.
5. Loosen wheel bearing lock nut so that torque becomes0Nzm
(0 kg-m, 0 ft-lb).
6. Retighten wheel bearing lock nut with Tool.
:3-5Nzm (0.3 - 0.5 kg-m, 26 - 43 in-lb)
SFA853B
SFA469A
FA781
SFA748BA
ON-VEHICLE SERVICE
Front Wheel Bearing (Cont'd)
FA-6

SFA859B
FRONT AXLE Ð Drive ¯ange and Free-running Hub
FA-10