Toyota land cruiser 1998 2007 steering hệ thống lái trên xe land cruiser đời 1998 2007

HỆ THỐNG LÁI TRÊN XE LAND CRUISER ĐỜI 1998-2007

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-STEERING AIR CONTROL VALVE

AIR CONTROL VALVE

INSPECTION

(a) Start the engine and run it at idle

(b) Fully turn the steering wheel

(c) Check that the engine rotations decrease when the

vacu-um hose of the air control valve is pinched

(d) Check that the engine rotations increase when the hose

is released

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INSPECT DRIVE BELT

Visually check the belt for excessive wear, frayed cords, etc

If any defect has been found, replace the drive belt

HINT:

Cracks on the rib side of a belt are considered acceptable If thebelt has chunks missing from the ribs, it should be replaced

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R11229Normal Abnormal

-STEERING POWER STEERING FLUID

POWER STEERING FLUID

BLEEDING

WITH STANDS

With the engine stopped, turn the wheel slowly from lock to lockseveral times

Run the engine at idle for a few minutes

(a) With the engine idling, turn the wheel to left or right fulllock position and keep it there for 2-3 seconds, then turnthe wheel to the opposite full lock position and keep itthere for 2-3 seconds

(b) Repeat (a) several times

If the system has to be bled twice specifically because of ing or emulsification, check for fluid leaks in the system

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R00427

R11229Normal Abnormal

R11562Engine Idling Engine Stopped

(a) Keep the vehicle level

(b) With the engine stopped, check the fluid level in the oilreservoir

If necessary, add fluid

(e) Check for foaming or emulsification

If there is foaming or emulsification, bleed power steering tem (See page SR-4)

sys-(f) With the engine idling, measure the fluid level in the oilreservoir

(g) Stop the engine

(h) Wait a few minutes and remeasure the fluid level in the oilreservoir

Maximum fluid level rise: 5 mm (0.20 in.)

If a problem is found, bleed power steering system(See page SR-4)

(i) Check the fluid level

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(a) Remove the air cleaner assembly with air cleaner hose(See page SR-40)

(b) Disconnect the pressure feed tube from the PS vanepump (See page SR-40)

(c) Connect SST, as shown below

SST 09640-10010 (09641-01010, 09641-01030,

09641-01060)

NOTICE:

Check that the valve of the SST is in the open position.

(d) Bleed the power steering system (See page SR-4).(e) Start the engine and run it at idle

(f) Turn the steering wheel from lock to lock several times toboost fluid temperature

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Z15499

PS Gear

SST

PS VanePump

OilReservoir

Open

Lock Position

(g) With the engine idling, close the valve of the SST and serve the reading on the SST

ob-Minimum fluid pressure:

NOTICE:

se-conds.

(h) With the engine idling, open the valve fully

(i) Measure the fluid pressure at engine speeds of 1,000 rpmand 3,000 rpm

Difference fluid pressure:

NOTICE:

Do not turn the steering wheel.

(j) With the engine idling and valve fully opened, turn thesteering wheel to full lock

Minimum fluid pressure:

(n) Bleed the power steering system (See page SR-4)

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42 (430, 31)

Clip

Engine Oil Filter Assembly

No 2 Engine Under Cover

-STEERING POWER STEERING GEAR

POWER STEERING GEAR

COMPONENTS

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132 (1,350, 98)

*99 (1,014, 74)

Cylinder EndStopper

Molybdenum disulfide lithium base grease

Power steering fluid

*For use with SST

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Molybdenum disulfide lithium base grease

Power steering fluid

* For use with SST

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F06129SST

F06130SST

When using a vise, do not overtighten it.

Using SST, secure the gear assembly in a vise, as shown in theillustration

SST 09630-00014 (09631-00142)

Using SST, remove the tube

Be careful not to damage the boot.

(b) Remove the clip, rack boot and clamp

(c) Employ the same manner described above to the otherside

HINT:

Mark the RH and LH rack boots

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F10798SST

F10799Matchmarks

F04822SST

(b) Using a spanner to hold the steering rack steady, and ing SST, remove the rack end

us-SST 09922-10010

NOTICE:

Use SST 09922-10010 in the direction shown in the tion.

illustra-(c) Remove the claw washer

(d) Employ the same manner described above to the otherside

HINT:

Mark the RH and LH rack ends

Using SST, remove the nut

SST 09922-10010

NOTICE:

SUB-ASSEMBL Y

VALVE ASSEMBLY

(a) Place matchmarks on the valve housing and rack ing

hous-(b) Remove the 2 bolts

(c) Pull out the control valve assembly with the valve ing

hous-(d) Remove the O-ring from the valve housing

(a) Using SST, loosen the bearing guide nut

SST 09631-20060

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F04825Vinyl Tape

F10800SST

F10801

SSTPress

(b) Wind vinyl tape to the control valve shaft

(c) Using a plastic hammer, tap out the valve assembly withthe nut from the control valve housing

NOTICE:

Be careful not to damage the oil seal lip.

(d) Remove the nut from the valve assembly

NOTICE:

Be careful not the damage the oil seal lip.

(e) Remove the O-ring from the nut

(a) Using SST, remove the stopper

SST 09922-10010

NOTICE:

illustra-(b) Remove the O-ring from the stopper

(a) Using SST, press out the rack and oil seal

NOTICE:

Take care not to drop the rack.

SST 09950-70010 (09951-07200)(b) Remove the oil seal from the rack

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R10072Dial Indicator

F17589

Needle RollerBearing

R09561Bearing

INSPECTION

(a) Using a dial indicator, check the rack for runout and forteeth wear and damage

Maximum runout: 0.3 mm (0.012 in.)

(b) Check the back surface for wear and damage

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INSTALLATION

Torque the 2 new gear assembly set bolts, nuts and washers

Torque: 120 N·m (1,250 kgf·cm, 89 ft·lbf)

HINT:

Slide the gear assembly to the right side, slide the gear bly to the left side and position it

(a) Screw the lock nut and tie rod end onto the rack end untilthe matchmarks are aligned

(b) After adjusting toe-in, torque the nut (See page

SA-6)

Torque: 55 N·m (560 kgf·cm, 41 ft·lbf)

Torque the bolt

Using SST, connect the tube

Torque the union bolt with a new gasket

HINT:

Make sure the stopper of the pressure feed tube touches the

PS gear assembly as shown in the illustration, then torque thebolt

(a) Install a new O-ring

(b) Torque the 2 bolts and nut with the bracket

(c) Connect the 2 clips and hoses

SA-20 )

Tighten the 6 bolts

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Tighten the 7 bolts

AHEAD

HINT:

Do it with the front of the vehicle jacked up

(a) Align the matchmarks on the wheel and steering columnmain shaft

(b) Temporarily tighten the wheel set nut

(c) Connect the connector

SR-4 )

SA-6 )

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Cylinder End Stopper

WoodenBlock

REASSEMBLY

NOTICE:

When using a vise, do not overtighten it.

STEERING FLUID OR MOLYBDENUM DISULFIDE LITHIUM BASE GREASE

(a) Install SST to the rack

SST 09631-00350HINT:

If necessary, scrape the burrs off the rack teeth end and nish

bur-(b) Coat SST with power steering fluid

(c) Install the rack into the rack housing

(d) Remove the SST

(a) Install SST to the steering rack opposite end

SST 09631-00350(b) Coat SST with power steering fluid

(c) Coat a new oil seal lip with power steering fluid

(d) Install the oil seal by pushing it onto the SST without ing

tilt-NOTICE:

Make sure to install the oil seal facing the correct direction.

(e) Remove the SST

(a) Install the spacer

(b) Coat a new O-ring with power steering fluid, and install

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FulcrumLengthSST

F10803SST

F04832Vinyl Tape

F04824SST

F04823

(d) Using SST, torque the stopper

SST 09922-10010

Torque: 110 N·m (1,122 kgf·cm, 81 ft·lbf) NOTICE:

illustra-HINT:

Use a torque wrench with a fulcrum length of 380 mm (14.97in.)

(a) Install SST to the unions of the rack housing

SST 09631-12071(b) Apply 53 kPa (400 mmHg, 15.75 in.Hg) of vacuum forabout 30 seconds

(c) Check that there is no change in the vacuum

If there is change in the vacuum, check the installation of the oilseals

(a) Coat the teflon rings with power steering fluid

(b) To prevent oil seal lip damage, wind vinyl tape on the rated part of the control valve shaft

ser-(c) Push the valve assembly into the control valve housing

NOTICE:

Be careful not to damage the teflon rings and oil seal lip.

(d) Coat a new O-ring with power steering fluid, and install

it to the bearing guide nut

(e) Using SST, torque the nut

SST 09631-20060

Torque: 24.5 N·m (250 kgf·cm, 18 ft·lbf) NOTICE:

Be careful not to damage the oil seal lip.

(f) Using a punch, stake the nut

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19°

F17595SST

F17182SST

CON-TROL VALVE ASSEMBLY

(a) Coat a new O-ring with power steering fluid, and install

it to the valve housing

(b) Align the matchmarks on the valve housing and rackhousing, and install the valve housing with the valve as-sembly to the rack housing

(c) Torque the 2 bolts

GUIDE SPRING AND RACK GUIDE SPRING CAP

(a) Apply sealant to 2 or 3 threads of the cap

Sealant:

Part No 08833-00080, THREE BOND 1344, LOCTITE 242 or equivalent

(b) Temporarily install the cap

(a) To prevent the steering rack teeth from damaging the oilseal lip, temporarily install the RH and LH rack ends.(b) Torque the rack guide spring cap

(c) Return the cap 19°

(d) Using SST, turn the control valve shaft right and left 1 or

2 times

SST 09616-0001 1(e) Loosen the cap until the rack guide spring is not function-ing

(f) Using SST and a torque wrench, tighten the cap until thepreload is within specification

SST 09616-0001 1

Preload (turning):

Center Area 1.8 - 2.2 N·m (18.4 - 22.4 kgf·cm, 16.0 - 19.5 in.·lbf) End Area

1.3 - 1.7 N·m (13.3 - 17.3 kgf·cm, 11.5 - 15.0 in.·lbf)

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SST

FulcrumLength

F05047Rack Groove

F17183

Fulcrum Length

SST

(a) Apply sealant to 2 or 3 threads of the nut

1.3 - 1.7 N·m (13.3 - 17.3 kgf·cm, 11.5 - 15.0 in.·lbf)

(d) Remove the RH and LH rack ends

ENDS

(a) Install a new washer, and temporarily tighten the rackend

HINT:

Align the claws of the washer with the steering rack grooves

(b) Using a spanner to hold the steering rack steady, and ing SST, torque the rack end

us-SST 09922-10010

Torque: 99 N·m (1,014 kgf·cm, 74 ft·lbf) NOTICE:

illustra-HINT:

Use a torque wrench with a fulcrum length of 380 mm (13.58in.)

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F17184Brass Bar

(c) Using a brass bar and hammer, stake the washer

NOTICE:

Avoid any impact to the rack.

(d) Employ the same manner described above to the otherside

Be careful not to damage or twist the boot.

(c) Using pliers tighten a new clamp, as shown in the tion

illustra-(d) Employ the same manner described above to the otherside

Using SST, install the tube

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F12852SST

R13479Matchmarks

Remove the 7 bolts

Remove the 6 bolts

(a) Disconnect the 2 clips and hoses

(b) Remove the 2 bolts and nut with the bracket

(c) Remove the O-ring

HINT:

Turn the steering wheel fully to the right side

Remove the union bolt, gasket and disconnect the pressurefeed tube

Using SST, disconnect the tube

(c) Employ the same manner described above to the otherside

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Remove the 2 gear assembly set bolts, nuts and washers.HINT:

Slide the gear assembly to the right side, pull out the left side

of the gear assembly from the member

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(a) Using SST, press out the oil seal and bearing from thecontrol valve housing.

SST 09950-60010 (09951-00260),

09950-70010 (09951-07150)

(b) Coat a new oil seal lip with power steering fluid

(c) Using SST, press in the oil seal

(a) Using SST, press out the oil seal from the bearing guidenut

SST 09950-60010 (09951-00320),

09950-70010 (09951-07100)

(b) Coat a new oil seal lip with power steering fluid

(c) Using SST, press in the oil seal

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R16011Bushing

(a) Using a screwdriver, remove the bushing from the der end stopper

cylin-NOTICE:

Be careful not to damage the cylinder end stopper.

(b) Coat the inside of a new bushing with molybdenum fide lithium base grease

disul-(c) Install the bushing

O-RING

(a) Using a screwdriver, remove the teflon ring and O-ringfrom the steering rack

NOTICE:

Be careful not to damage the groove for the ring.

(b) Coat a new O-ring with power steering fluid and install it

(c) Expand a new teflon ring with your fingers

NOTICE:

Be careful not to overexpand the ring.

(d) Coat the ring with power steering fluid

(e) Install the ring to the rack, and settle it down with your gers

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Z06085SST

F04830

ScrewExtractor

F04831Sliding Handle

(a) Using a screwdriver, remove the 4 teflon rings from thecontrol valve assembly

NOTICE:

Be careful not to damage the grooves for the ring.

(b) Expand 4 new rings with your fingers

NOTICE:

Be careful not to overexpand the ring.

(c) Coat the rings with power steering fluid

(d) Install the rings to the control valve assembly, and settlethem down with your fingers

(e) Carefully slide the tapered end of SST over the rings untilthe ring fits to the steering rack

SST 09631-20081

NOTICE:

Be careful not to damage the rings.

(a) Using a screw extractor, remove the union seat from thecontrol valve housing

(b) Using plastic hammer and sliding handle, lightly tap in anew union seat

NOTICE:

Before installing the union seat, remove dust sticking to the control valve housing.

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SR0MD-1 1

F17213

Air Cleaner Assembly

with Air Cleaner Hose

MAF Meter Connector

-STEERING POWER STEERING VANE PUMP

POWER STEERING VANE PUMP

COMPONENTS

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Pressure Port Union

69 (700, 51)

O-RingFlow Control Valve

Rotor

Snap Ring

x10Vane Plate

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F17215SST

Using SST, hold the vane assembly in a vise

SST 09630-00014 (09631-00132)

(a) Check that the pump rotates smoothly without abnormalnoise

(b) Temporarily install the bolt to the shaft

(c) Using a torque wrench, check the pump rotating torque

Rotating torque:

0.3 N·m (2.8 kgf·cm, 2.4 in.·lbf) or less

(a) Remove the bolt

(b) Remove the O-ring from the union

VALVE AND SPRING

Remove the O-ring from the union

(a) Loosen the 4 bolts

(b) Remove the vane pump assembly from the SST

(c) Remove the 4 bolts and rear housing

(d) Remove the gasket from the housing

PUMP ROTOR

Using a screwdriver, remove the snap ring from the vane pumpshaft

NOTICE:

Be careful not to drop the plate.

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R10282Feeler Gauge

F17219

INSPECTION

SHAFT AND BUSHING OF FRONT HOUSING AND REAR HOUSING

Using a micrometer and caliper gauge, measure the oil ance

clear-Standard clearance:

Front housing and shaft 0.020 - 0.077 mm (0.00079 - 0.00303 in.) Rear housing and shaft

0.020 - 0.077 mm (0.00079 - 0.00303 in.) Maximum clearance:

Front housing and shaft 0.070 mm (0.00276 in.) Rear housing and shaft 0.080 mm (0.00315 in.)

If it is more than the maximum, replace a new vane pump sembly

(a) Using a micrometer, measure the height, thickness andlength of the 10 plates

Minimum thickness: 1.405 mm (0.05531 in.)

(b) Using a feeler gauge, measure the clearance betweenthe rotor groove and plate

Maximum clearance: 0.03 mm (0.0012 in.)

If it is more than the maximum, replace a new vane pump sembly

(a) Coat the valve with power steering fluid and check that itfalls smoothly into the valve hole by its own weight

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F04865Compressed Air

R08702Calipers

(b) Check the flow control valve for leakage

Close one of the holes and apply compressed air392-490 kPa (4-5 kgf/cm2, 57-71 psi) into the oppositeside hole, and confirm that air does not come out from theend holes

If necessary, replace a new vane pump assembly

Using calipers, measure the free length of the spring

Minimum free length: 31.3 mm (1.2323 in.)

If it is not within the specification, replace a new vane pump sembly

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F17225Stopper

EM6656

INSTALLATION

Torque the 3 bolts

Install new gaskets on each side of the tube and torque theunion bolt

HINT:

Make sure that the stopper of the tube touches the PS vanepump body as shown in the illustration, then torque the bolt

Install the clip

Install the 2 clips

Loosen the drive belt tension by turning the drive belt tensionercounterclockwise, and install the belt

CLEANER HOSE

(a) Tighten the 3 bolts

(b) Tighten the clamp

(c) Connect the hose

(d) Connect the MAF meter connector

Tighten the 8 bolts

Tighten the 6 bolts

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F17223

F17224Inscribed Mark

(a) Install a new O-ring to the front housing

(b) Install a new O-ring to side plate

(c) Install the side plate as shown in the illustrating

HINT:

Align the hole of the side plate with the hole of the front housing

Install the ring with the inscribed mark facing outward

HINT:

Align the hole of the cam ring with the hole of the front housing

(a) Install the rotor with the inscribed mark facing outward.(b) Install a new snap ring to the vane pump shaft

(a) Install the plates with the round end facing outward

(a) Coat new gasket with power steering fluid and install it tothe housing

(b) Temporarily install the 4 bolts

(c) Using SST, hold the vane pump assembly in a vise.(d) Torque the 4 bolts

PRESSURE PORT UNION

(a) Install the valve facing the correct direction(See page SR-38)

(b) Coat a new O-ring with power steering fluid and install it

to the union

(c) Torque the union

(a) Coat a new O-ring with power steering fluid and install it

to the union

(b) Torque the bolt

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Tiêu đề	Toyota Land Cruiser 1998 2007 Steering hệ thống lái trên xe Land Cruiser đời 1998 2007
Tác giả	Author
Trường học	Toyota University
Chuyên ngành	Automotive Engineering
Thể loại	Chuyên đề
Năm xuất bản	2004
Thành phố	Unknown

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Số trang	66
Dung lượng	1,21 MB