lock ISUZU TROOPER 1998 Service Service Manual

FRONT END ALIGNMENT 2A – 5
Position of shim
Camber angle Caster angle
Front side Rear side
When added When removed Decreases Decreases
When removed When added Increases Increases
Caster shim
When removed Unchanged Decreases
When added Unchanged Increases
When added Decreases Unchanged
Camber shim
When removed Increases Unchanged
TOE-IN ADJUSTMENT
1. To adjust the toe-in angle, loosen the lock nuts on the
outer track rods and turn the outer track rods. Turn
both rods the same amount, to keep the steering
wheel centered.
Toe-in mm(in)
0 ± 2 (0 ± 0.08)
2. Tighten the lock nut to the specified torque.
Lock Nut Torque N·m (kg·m/lb·ft)
118 (12.0 / 87)
MAXIMUM STEERING ANGLE
ADJUSTMENT
The maximum steering angle of the front wheels can be
adjusted with the stopper bolts under the frame side
members.
1. Position each front wheel on the turning radius gauge
in a straight-ahead position.
2. Set the parking brake firmly.
3. Adjust the inside wheel angle of each side with the
stopper bolts.
NOTE:
The maximum protruding length (L) of stopper bolt from
the lock nut should be 10 mm (0.4 in) or less.

6. Tighten the lock nut to the specified torque.
Lock Nut Torque N·m (kg·m/lb·ft)
23 (2.3 / 17) 2A – 6 FRONT END ALIGNMENT
4. Similarly adjust the inside wheel angle of the other
side with stopper bolt.
Maximum Steering Angle
Inside wheel 34°+0°
-2°
Outside wheel 32°
NOTE:
Maximum steering angles should be set after adjusting
front wheel alignment.
5. If the stop between the lower link end and the knuckle
comes ahead of the stopper bolt, adjust the stopper
bolt so that inner stopper bolt touches the drop arm
(relay lever).

2A – 22 POWER STEERING
UNIT REPAIR
STEERING GEAR
5 These steps are based on the LHD model
6
8
131
2
3
4
9
10
11
12
7
Disassembly Steps
1. Dust cover
2. Retaining ring
3. Back up ring
4. Oil seal
5. Lock nut
6. Top cover assembly
7. O-ring
8. Sector shaft
9. Ball-nut and valve housing assembly
10. O-ring
11. Seal ring
12. O-ring
13. Gear box
Reassembly Steps
13. Gear box
12. O-ring
11. Seal ring
10. O-ring
9. Ball-nut and valve housing assembly
8. Sector shaft
7. O-ring
6. Top cover assembly
5. Lock nut
4. Oil seal
3. Back up ring
2. Retaining ring
1. Dust cover
440RW004
These steps are based on the LHD model.

POWER STEERING 2A – 23
DISASSEMBLY
CAUTION:
Do not clamp the steering gear assembly in a vise by the
power cylinder housing.
1. Dust Cover
2. Retaining Ring
3. Back up RIng
4. Oil Seal
1) Clean the faces of the extended stub shaft.
2) Plug the hose fitting on the inlet side.
3) Remove the oil seal by blowing compressed air
through the hole in the outlet side.
5. Lock Nut
Remove the adjusting screw lock nut and turn the
adjusting screw counterclockwise to remove the
preload between the sector gear and the rack piston,
then remove the top cover bolts.
6. Top Cover Assembly
Holding the top cover stationary, turn the adjusting
screw clockwise to raise and free to cover, then
remove the cover.
7. O-ring
8. Sector Shaft
Bring the stub shaft into straight-ahead position. Do
not force the sector shaft off the gear box with a
hammer or other impact tools.

POWER STEERING 2A – 27
7. O-ring
6. Top Cover Assembly
Top Cover Bolt Torque N·m (kg·m/lb·ft)
47 (4.8 / 35)
5. Lock Nut
Adjust the backlash between the worm gear and the
ball nut.
1) With the worm gear rotating, set it to the straight
ahead position.
2) Set the worm shaft preload to below 1N·m
(10kg·cm / 9 lb·in) with the sector shaft adjusting
screw.
3) Measure the worm shaft preload with the worm
gear turned 450°both to the right and to the left.
The worm gear preload in these positions should
be 0.4 - 0.6 N·m (4 - 6 kg·cm / 3.5 - 5.2 lb·in) lower
than in the straight ahead position.
4) Lock the sector shaft adjusting screw with the lock
nut.
Lock Nut Torque N·m (kg·m/lb·ft)
41 (4.2 / 30)
4. Oil Seal
Installer: 5-8522-0026-0 (J-26508)
3. Back up Ring
Position the chamfered face (outer circumference)
towards the oil seal.
2. Retaining Ring
position the chamfered face (outer circumference)
toward the oil seal.
1. Dust Cover

2A – 46 STEERING LINKAGE
OUTER TRACK ROD ASSEMBLY
Removal Steps
1. Nut and cotter pin, center track rod
2. Nut and cotter pin, knuckle arm
3. Lock nut, outer
4. Rod end assembly outer
5. Lock nut, inner
6. Rod end assembly, inner
The screw is threaded
counterclockwise.
Installation Steps
6. Rod end assembly, inner
5. Lock nut, inner
4. Rod end assembly outer
3. Lock nut, outer
2. Nut and cotter pin, knuckle arm
1. Nut and cotter pin, center track
rod These steps are based on the LHD model.

STEERING LINKAGE 2A – 47
REMOVAL
Preparation:
Remove wheel and tire assembly.
Refer to “Wheels and Tires” in section 3E.
1. Nut and Cotter Pin, Center Track Rod
Disconnect outer track rod assembly at the center
track rod.
Remover: 5-8840-2121-0 (J-36831)
CAUTION:
Be careful not to break the ball joint boot.
2. Nut and Cotter Pin, Knuckle Arm
Remove outer track rod assembly from the knuckle
arm.
Remover: 5-8840-2121-0 (J-36831)
CAUTION:
Be careful not to break the ball joint boot.
3. Lock Nut, Outer
NOTE:
In either outer rod, the screw on the right side of the
vehicle is threaded counterclockwise.
6. Rod End, Inner
Apply setting marks to ensure reassembly of the
parts in their original position.
4. Rod End Assembly, Outer
Apply setting marks to ensure reassembly of the
parts in their original position.
5. Lock Nut, Inner
NOTE:
In either outer rod, the screw on the right side of the
vehicle is threaded counterclockwise.

2A – 48 STEERING LINKAGE
INSPECTION AND REPAIR
Make necessary correction or parts replacement if wear,
damage, corrosion, bending, deteriorations or any other
abnormal condition are found through inspection.
Check the following parts.
•Rod end assembly
•Ball joint (Boot, screws and tapered surfaces)
INSTALLATION
6. Rod End, Inner
Align the setting marks applied during desassembly.
5. Lock Nut, Inner
Lock Nut Torque N·m (kg·m/lb·ft)
118 (12.0 / 87)
NOTE:
In either outer rod, the screw on the right side of the
vehicle is threaded counterclockwise.
4. Rod End Assembly, Outer
Align the setting marks applied during disassembly.
3 Lock Nut, Outer
Lock Nut Torque N·m (kg·m/lb·ft)
118 (12.0 / 87)
2. Nut and Cotter pin, Knuckle Arm
Tighten the nut to the specified torque, with just
enough additional torque to align cotter pin holes.
Install new cotter pin.
Knuckle Arm Nut Torque N·m (kg·m/lb·ft)
98 (10.0 / 72)
1. Nut and Cotter Pin, Center Track Rod
Tighten the nut to the specified torque, with just
enough additional torque to align cotter pin holes.
Install new cotter pin.
Track Rod Nut Torque N·m (kg·m/lb·ft)
98 (10.0 / 72)
NOTE:
If replacing the track rod, adjust the new track rod
length.
Rod Length (L) mm (in)
328.3 (12.93) : Wide Tread
299 (11.77) : Narrow Tread
NOTE:
Adjust the toe-in. Refer to “Front End Alignment” in
section 3A.

SUPPLEMENTAL RESTRAINT SYSTEM STEERING WHEEL & COLUMN 2A – 51
SECTION 2A
SUPPLEMENTAL RESTRAINT SYSTEM
STEERING WHEEL & COLUMN
CAUTION:
When fasteners are removed, always reinstall them at the same location from which
they were removed. If a fastener needs to be replaced, use the correct part number
fastener for that application. If the correct part number fastener is not available, a
fastener of equal size and strength (or stronger) may be used. Fasteners that are not
reused, and those requiring thread locking compound, will be called out. The correct
torque value must be used when installing fasteners that require it. If the above
conditions are not followed, parts or system damage could result.
CONTENTS
PAGE
General Description ......................................................................................................... 2A – 52
On-Vehicle Service ........................................................................................................... 2A – 53
SRS Connectors ........................................................................................................... 2A – 53
Inflator Module Replacement ..................................................................................... 2A – 54
Steering Wheel Replacement ..................................................................................... 2A – 57
Combination Switch Replacement ............................................................................ 2A – 60
Lock Cylinder Replacement ........................................................................................ 2A – 64
Steering Column Replacement .................................................................................. 2A – 69

This steering wheel and column repair section
covers the Supplemental Restraint System (SRS)
steering column. The following repair procedures
are specific to SRS Components. When servicing a
vehicle equipped with Supplemental Restraint
System, pay close attention to all WARNINGS and
CAUTIONS.
For detailed explanation about SRS, refer to Section
9J "SUPPLEMENTAL RESTRAINT SYSTEM (SRS)"
of manual.
The steering column has three important features in
addition to the steering function:
1. The column is energy absorbing, designed to
compress in a front-end collision to minimize
the possibility of injury to the driver of the
vehicle.
2. The ignition switch and lock are mounted
conveniently on the column.
3. With the column mounted lock, the ignition
and steering operation can be locked to
prevent theft of the vehicle.
The column may be disassembled and
reassembled. To insure the energy absorbing
action, it is important that the specified screws,
bolts and nuts be used only as designated and that
they are tightened to the specified torque.
When the column is removed from the vehicle, a
sharp blow on the end of steering shaft or shift
lever, leaning on the column assembly, or dropping
the assembly could shear or loosen the fasteners
that maintain column rigidity.
WARNING
THIS VEHICLE HAS A SUPPLEMENTAL RE-
STRAINT SYSTEM (SRS).REFER TO THE SRS
COMPONENT AND WIRING LOCATION VIEW
IN ORDER TO DETERMINE WHETHER YOU ARE
PERFORMING SERVICE ON OR NEAR THE SRS
COMPONENTS OR THE SRS WIRING. WHEN
YOU ARE PERFORMING SERVICE ON OR NEAR
THE SRS COMPONENTS OR THE SRS WIRING,
REFER TO THE SRS SERVICE INFORM ATION.
FAILURE TO FOLLOW WARNINGS COULD RE-
SULT IN POSSIBLE AIR BAG DEPLOYMENT,
PERSONAL INJURY, OR OTHERWISE UN-
NEEDED SRS SYSTEM REPAIRS.
SAFE HANDLING OF INFLATOR MODULES
REQUIRES FOLLOWING THE PROCEDURES
DESCRIBED BELOW FOR BOTH LIVE AND
DEPLOYED MODULES.
SAFETY PRECAUTIONS MUST BE FOLLOWEDWHEN HANDLING A DEPLOYED AIR BAG AS-
SEMBLY (AIR BAG). AFTER DEPLOYMENT,
THE AIR BAG ASSEMBLY (AIR BAG) SURFACE
MAY CONTAIN A SMALL AMOUNT OF SODIUM
HYDROXIDE, A BY-PRODUCT OF THE DEPLOY-
MENT REACTION, THAT IS IRRITATING TO THE
SKIN AND EYES.MOST OF THE POWDER ON
THE AIR BAG ASSEMBLY (AIR BAG) IS HARM-
LESS. AS A PRECAUTION, WEAR GLOVES
AND SAFETY GLASSES WHEN HANDLING A
DEPLOYED AIR BAG ASSEMBLY, AND WASH
YOUR HANDS WITH MILD SOAP AND WATER
AFTERWARDS.
WHEN CARRYING A LIVE AIR BAG ASSEMBLY,
MAKE SURE THE BAG AND TRIM COVER ARE
POINTED AWAY FROM YOU. NEVER CARRY
AN AIR BAG ASSEMBLY BY THE WIRES OR
CONNECTOR ON THE UNDERSIDE OF MODULE.
IN THE CASE OF AN ACCIDENTAL DEPLOY-
MENT, THE BAG WILL THEN DEPLOY WITH
MINIMAL CHANCE OF INJURY. WHEN PLACING
A LIVE AIR BAG ASSEMBLY ON A BENCH OR
OTHER SURFACE, ALWAYS FACE THE BAG AND
TRIM COVER UP, AWAY FROM THE SURFACE.
NEVER REST A STEERING COLUMN ASSEMBLY
ON THE STEERING WHEEL WITH THE AIR
BAG ASSEMBLY FACE DOWN AND COLUMN
VERTICAL.THIS IS NECESSARY SO THAT A
FREE SPACE IS PROVIDED TO ALLOW THE AIR
BAG ASSEMBLY TO EXPAND IN THE UNLIKELY
EVENT OF ACCIDENTAL DEPLOYMENT. OTHER-
WISE, PERSONAL INJURY COULD RESULT.
TO AVOID DEPLOYMENT WHEN TROUBLE
SHOOTING THE SRS SYSTEM, DO NOT USE
ELECTRICAL TEST EQUIPMENT, SUCH AS
BATTERY-POWERED OR A/C-POWERED VOLT-
METER, OHMMETER, ETC., OR ANY TYPE OF
ELECTRICAL EQUIPMENT OTHER THAN SPECI-
FIED IN THIS MANUAL. DO NOT USE A NON-
POWERED PROBE-TYPE TESTER.
INSTRUCTIONS IN THIS MANUAL MUST BE
FOLLOWED CAREFULLY, OTHERWISE PER-
SONAL INJURY MAY RESULT. 2A – 52 SUPPLEMENTAL RESTRAINT SYSTEM STEERING WHEEL & COLUMN
GENERAL DESCRIPTION