Nissan XTrail T30 2005 User Manual

POWER STEERING SYSTEM

G STEERING

SECTION PS

POWER STEERING SYSTEM

CONTENTS

PRECAUTIONS .......................................................... 3

Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT BELT PRE-TEN-

SIONER” .................................................................. 3

Precautions for Steering System .............................. 3

PREPARATION ........................................... ................ 4

Special Service Tools [SST] ..................................... 4

Commercial Service Tools ........................................ 5

NOISE, VIBRATION AND HARSHNESS (NVH)

TROUBLESHOOTING .......................... ...................... 6

NVH Trouble Shooting Chart .................................... 6

POWER STEERING FLUID ........................................ 7

Checking Fluid Level ................................................ 7

Checking Fluid Leakage ........................................... 7

Air Bleeding Hydraulic System ................................. 7

STEERING WHEEL .................................................... 9

On-Vehicle Inspection and Service .......................... 9

CHECKING CONDITION OF INSTALLATION ...... 9

CHECKING STEERING WHEEL PLAY ................ 9

CHECKING NEUTRAL POSITION STEERING

WHEEL ................................................................. 9

CHECKING STEERING WHEEL TURNING

FORCE ............................... ...... ....... ...... ....... ......... 9

CHECKING FRONT WHEEL TURNING ANGLE ... 10

Removal and Installation ........................................ 10

REMOVAL ........................................................... 10

INSTALLATION ....................................................11

STEERING COLUMN ............................................... 12

Removal and Installation ........................................ 12

COMPONENT .................... ................................. 12

REMOV AL OF LOWER SHAFT , HOLE COVER,

CLAMP AND HOLE COVER SEAL .................... 12

INSTALLATION OF LOWER SHAFT, HOLE

COVER, CLAMP AND HOLE COVER SEAL ...... 13

REMOVAL OF STEERING COLUMN ASSEM-

BLY ...................................................................... 13

INSPECTION AFTER REMOVAL ....................... 14

INSTALLATION OF STEERING COLUMN

ASSEMBLY ......................................................... 14

INSPECTION AFTER INSTALLATION ................14

Disassembly and Assembly ....................................15

COMPONENT .....................................................15

DISASSEMBLY ...................................................15

INSPECTION AFTER DISASSEMBLY ................15

ASSEMBLY .........................................................15

INSPECTION AFTER ASSEMBLY ......................16

POWER STEERING GEAR AND LINKAGE ............17

Removal and Installation ........................................17

COMPONENT .....................................................17

REMOVAL ...........................................................17

INSTALLATION ...................................................18

INSPECTION AFTER INSTALLATION ................18

Disassembly and Assembly ....................................19

COMPONENT .....................................................19

DISASSEMBLY ...................................................20

INSPECTION AFTER DISASSEMBLY ................21

ASSEMBLY .........................................................23

POWER STEERING OIL PUMP ...............................28

On-Vehicle Inspection and Service .........................28

CHECKING RELIEF OIL PRESSURE ................28

Removal and Installation ........................................28

REMOVAL ...........................................................28

INSTALLATION ...................................................28

Disassembly and Assembly ....................................29

COMPONENT .....................................................29

INSPECTION BEFORE DISASSEMBLY .............29

DISASSEMBLY ...................................................29

INSPECTION AFTER DISASSEMBLY ................30

ASSEMBLY .........................................................30

HYDRAULIC LINE ....................................................33

Component .................. ...........................................33

Removal and Installation ........................................34

SERVICE DATA AND SPECIFICATIONS (SDS) ......35

Steering Wheel .......................................................35

Steering Angle ........................................................35

Steering Column .....................................................35

Steering Outer Socket and Inner Socket ................35

Steering Gear .........................................................36

Revision: 2005 March 2005 X-Trail

PS-1

Oil Pump .................................................................36

Steering Fluid ............................... ...........................36

Revision: 2005 March 2005 X-Trail

PS-2

PRECAUTIONS

PRECAUTIONS PFP:00001

Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT BELT PRE-TENSIONER”

AGS000L9

The Supplemental Rest raint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER” , used along with a front seat belt, helps to redu ce th e risk or se verit y of i njury to the driv er and front passenge r for ce rtain types of col lision. Information necessary to serv ice the system safely is included in t he SRS and SB sectio n of this Service Manual.

WARNING:

● To avoid rende ring the SRS inopera tive, which c ould increa se the risk of perso nal injury or dea th

in the event of a collision which would result in air bag inflation, all maintenance must be performed by an authorized NISSAN/INFINITI dealer.

● Improper maintenance, inc luding incorrect removal and installation of the SRS, can lead to per-

sonal injury ca use d by unintentional ac tiv atio n o f the s ys t em . F or re mo va l of Spiral Cable and Ai r Bag Module, see the SRS section.

● Do not use electrical test equ ipment o n any circu it related to the SRS unless in structed to in this

Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness connectors.

Precautions for Steering Syst em AGS000LA

● In case of removing steering gear, make the final tightening with grounded and unloaded vehicle condi-

tion, and then check wheel alignm ent.

● Observe the following precautions when disassembling.

– Before disassem b ly, thoroughly clean the outside of the unit. – Disassembly should be done in a clean work area. It is important to prevent the internal parts from becom-

ing contaminated by dirt or other foreign matter.

– For easier and proper assembly, place disassembled parts in order on a parts rack. – Use nylon cl oth or paper to wels to cl ean the parts; com mon shop ra gs can l eave lint that migh t interfere

with their operation.

– Do not reuse non- reusable parts. – Before assembling, apply the specified grease to the directed parts.

Revision: 2005 March 2005 X-Trail

PS-3

PREPARATION

PREPARATION PFP:00002 Special Service Tools [SST] AGS000K8

Tool number (Kent-Moore No.) Tool name

ST27180001 (J-25726-A) Steering wheel puller

HT72520000 (J-25730-A) Ball joint remover a: 33 mm (1.30 in) b: 50 mm (1.97 in) r: 11.5 mm (0.453 in)

ST3127S000 (See J-25765-A) Preload gauge

1. GG9103000 (J-25765-A) Torque wrench

2. HT62940000 (–) Socket adapter

3. HT62900000 (–) Socket adapter

S-NT544

NT546

S-NT541

Description

Removing steering wheel

Removing steering outer socket

Inspecting sliding torque, steering torque, and rotating torque for ball joint

KV48104400 (—) Teflon ring correcting tool a: 50 mm (1.97 in) dia. b: 36 mm (1.42 in) dia. c: 100 mm (3.94 in)

KV48103400 (—) Torque adapter

KV48103500 (J-26357) Pressure gauge

Installing rack Teflon ring

S-NT550

Inspecting rotati ng torque

ZZA0824D

Measuring oil pump relief pressure

S-NT547

Revision: 2005 March 2005 X-Trail

PS-4

PREPARATION

Tool number (Kent-Moore No.) Tool name

KV48102500 (J-33914) Pressure gauge adapter

S-NT542

ST35300000 (—) Drift a: 45.1 mm (1.776 in) dia. b: 59.0 mm (2.323 in) dia.

ZZA0881D

Description

Measuring oil pump relief pressure

Installing oil seal

Commercial Service Tools AGS000K9

Tool number Tool name

Description

Power tool Removing wheel nuts

PBIC0190E

Revision: 2005 March 2005 X-Trail

PS-5

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING PFP:00003 NVH Trouble Shooting Chart AGS000KA

Use chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.

Reference page

Possible cause and suspected parts

Symptom Steering

×: Applicable

PS-7

PS-22

Fluid level

Air in hydraulic system

Outer socket ball joint swinging force Noise ЧЧЧЧЧЧЧЧЧ ЧЧЧЧЧЧЧ Shake ××× × ЧЧЧЧЧ Vibration ЧЧЧЧЧ × ×× × Shimmy ×××××××× Judder ××××××

PS-22

Outer socket ball joint rotating torque

PS-22

Outer socket ball joint end play

PS-7

Steering fluid leakage

PS-9

Steering wheel play

Steering gear rack sliding force

PS-9

PS-15

PS-17

PS-14

PS-12

EM-11

Drive belt looseness

Improper steering wheel

Improper installation or looseness or tilt lock le ver

Mounting rubber deterioration

Steering column deformation or damage

PS-17

NVH in PR section

Improper installation or looseness of steering column

Steering linkage looseness

PROPELLER SHAFT

NVH in WT section

NVH in RFD section

DIFFERENTIAL

NVH in WT section

NVH in FAX, RAX, FSU, RSU section

AXLE and SUSPENSION

TIRES

ROAD WHEELS

NVH in BR section

NVH in FAX, RAX section

DRIVE SHAFT

BRAKES

Revision: 2005 March 2005 X-Trail

PS-6

POWER STEERING FLUID

POWER STEERING FLUID PFP:KLF20

Checking Fluid Level AGS000KB

● Check fluid level with engine stopped.

● Make sure that fluid leve l is be tw ee n MI N and MAX.

● Fluid levels at HOT and COLD are different. Do not confuse

them.

HOT : Fluid temperature 50 - 80°C (122 - 176°F) COLD : Fluid temperature 0 - 30°C (32 - 86°F)

CAUTION:

● The fluid level should not exceed the MAX line. Excessive

fluid will cause fluid leakage from the cap.

● Do not reuse drained power steering fluid.

● Recommended fluid is Genuine Nissan PSF or equiva-

STC0996D

lent.

Checking Fluid Leakage AGS000KC

Check hydraulic connections for fluid leakage, cracks, damage, looseness, or w ear.

1. Run engine until the fluid tempera ture reaches 50 to 80°C (122 to 176°F) in reservoir tank, an d keep engine speed idle.

2. Turn steering wheel several times from full lef t stop to full right stop.

3. Hold steering wheel at each lock position for five seconds and carefully, check for fluid leakage.

CAUTION:

Do not hold the steering wheel in a locked position for more than 10 seconds. (There is the possibility that oil pump may

SGIA0506E

be damaged.)

4. If fluid leakage at connections is noticed, then loosen flare nut and then retighten. Do not over tighten connector as this can damage O-ring, washer and connector.

5. If fluid leakage from oil pump is noticed, check oil pump. Refer to PS-28, "

POWER STEERING OIL

PUMP" .

6. Check steer ing gear boots for accumulation of fluid indicating from stee ring gear.

Air Bleeding Hydraulic System AGS000KD

If air bleeding is not complete, the following symptoms can be observed.

● Bubbles are created in reservoir tank.

● Clicking noise can be heard from oil pump.

● Excessive buzzing in the oil pump.

NOTE:

Fluid noise may occur in the valve or oil pump. This does not affect performance or durability of the system.

1. Turn steering wheel several times from full left stop to full right stop with engine off.

CAUTION:

Turn steering whe el while filling reservoir tank with fluid so as not to lowe r fluid level below the MIN line.

2. Start engine and hold steering wheel at each lock position for 3 seconds at idle to check for fluid leakage.

3. Repeat step 2 above several times at approximately 3 second intervals.

CAUTION:

Do not hold the steering whe el in a loc ked pos ition for more than 10 seconds. (The re is the p oss ibility that oil pump may be damaged.)

4. Check fluid for bubbles and white contamination.

Revision: 2005 March 2005 X-Trail

PS-7

POWER STE E RI N G FL U ID

5. Stop engine if bubbles and white contamination do not drain out. Perform step 2 to 3 above after waiting until bubbles and white contamination drain out.

6. Stop the engine, and then check fluid level.

Revision: 2005 March 2005 X-Trail

PS-8

STEERING WHEEL

STEERING WHEEL PFP:48430

On-Vehicle Inspection and Service AGS000KE

CHECKING CONDITION OF INSTALLATION

● Check installation conditions of steering gear assembly, front suspension, 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.

Steering wheel axial end play : 0 mm (0 in)

● Check steering gear assembly mounting nuts and bolts for looseness. Refer to PS-17, "COMPONENT" .

CHECKING STEERING WHEEL PLAY

● Turn steering wheel so that front wheels come to the straight-ahead position. Start engine and lightly turn

steering wheel to t he lef t an d right until front whe els s tart to m ov e. Me as ure steering wheel m ov em e nt o n the outer circumference.

Steering wheel play : 0 - 35 mm (0 - 1.38 in)

● When the measurement value is outside the st andard value, check backlash for each joint of steering col-

umn and installation condition of power steering gear.

CHECKING NEUTRAL POSITION STEERING WHEEL

● Make sure that steering gear assembly, steering column and steering wheel are installed in the correct

position.

● Perform neutral position inspection after wheel alignment. Refer to FSU-6, "Wheel Alig nm en t In sp ec ti on " .

● Set vehicle to the straight-ahead position and confirm steering wheel is in the neutral position.

● Loosen outer socket lock nut and turn inner socket to left and right equally to make fine adjustments if

steering wheel is not in the neutral position.

CHECKING STEERING WHEEL TURNING FORCE

1. Park vehicle on a level and dry surface, set parking brake.

2. Start engine.

3. Bring power steering fluid up to adequate operating temperature. [Make sure temperature of fluid is approximate ly 50 to 80°C (122 to 176°F).]

NOTE:

Tires need to be inflated normal pressure.

4. Check steering wheel turning force when steering wheel has been turned 360° from neutral position.

Steering wheel turning force

: 36 N (3.7 kg, 8.2 lb) or less

5. If steering wheel turning force is out of the specification, check rack sliding force.

a. Disconnect lower shaft and steering knuckle from steering gear

assembly.

b. Start and run engine at idle to make sure steering fluid has

reached normal opera tin g tem p era ture .

SST491B

c. W hile pu lling ou ter soc ket slo wly in ±11.5 m m (±0.453 in) range

from neutral position, make sure rack sliding force is within specification.

Rack sliding force

: 255 - 294 N (26 - 30 kg, 57 - 66 lb)

d. Check sliding force outside above range.

Rack sliding force: 294 N (30 kg, 66 lb) or less

e. If rack sliding forc e is not within spec ification, ove rhaul steering

gear assembly.

Revision: 2005 March 2005 X-Trail

PS-9

SST090B

STEERING WHEEL

CHECKING FRONT WHEEL TURNING ANGLE

● Check front wheel turning angle after toe-in inspection. Place

front wheels on turning radius gauges and rear wheels on stands. Check the maximum inner and outer wheel turning angles for LH and RH road wheels.

● With the engine a t idle, turn st eering wheel f rom full left s top to

full right stop and measure the turning angles.

Inner wheel (Angle: A) Minimum 36°00′ (36.0°)

Nominal 39°00′ (39.0°) Maximum 40°00′ (40.0°)

Outer wheel (Angle: B) Nominal 31°00′ (31.0°)

FAA0016D

SGIA0055E

● Measure rack stroke if angles are outside the specified value.

Rack stroke “L” : 66.5 mm (2.618 in)

● Disassemble steering gear to check the cause that rack stroke is

outside of the standard.

● Steering angles are not adjustable. Check steering gear, steer-

ing column and front suspension components for wear or damage if any of th e turning angles ar e different from the speci fied value. Replace any of them, if any non-standard condition exists.

SGIA0629J

Removal and Installation AGS000KF

REMOVAL

1. Set front wheels in the str aight-ahead direction.

2. Remove driver air bag module from steering wheel. Refer to SRS-31, "

3. Remove steering wheel lock nut after steering is locked.

4. Remove steering wheel with the steering wheel puller [SST].

DRIVER AIR BAG MODULE" .

SGIA0939E

Revision: 2005 March 2005 X-Trail

PS-10

STEERING WHEEL

INSTALLATION

Install in the reverse order of the removal. For tightening torque, refer to PS-12, "COMPONENT" .

NOTE:

● When reconne cting spiral ca ble, fix cable w ith a tape so tha t fixing case a nd rotating part keep al igned.

This will omit neutral position alignment procedure during spiral cable installation.

● Neutral position (refe r to figure).. . Gently turn s piral cab le clock-

wise until it comes to the stop. Then turn it counterclockwise (approximately 3.0 turns) until centering mark is aligned with adjustment mark. (Service part is fixed in neutral position with stopper. It can be installed onto steering wheel without alignment once stopper is removed.)

CAUTION:

● Place steering wheel as follows: Front wheels in straight-

ahead position. R mark on the cancel claw faces down. 3 bosses align with 3 holes behind steering wheel assembly. Make sure that spiral cable is placed in neutral position and that locating pin on the left of the spiral cable is aligned with the locating pinhole behind the steering wheel assembly.

SGIA0940E

Revision: 2005 March 2005 X-Trail

PS-11

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