2002 ISUZU AXIOM power steering fluid

2A±12
POWER±ASSISTED STEERING SYSTEM
4. Install all the lines and hoses. Fill the system with new
power steering fluid and bleed the system as
described in Bleeding The Power Steering System.
Operate the engine for about 15 minutes.
Remove the pump return line at the pump inlet and
plug the connection on the pump. While refilling the
reservoir, check the draining fluid for contamination.
If foreign material is still evident, replace all lines,
disassemble and clean or replace the power steering
system components. Do not re-use any drained
power steering fluid.
Steering Wheel Free Play Inspection
430R200001
1. With the tires in the straight-ahead position, check the
amount of steering wheel play by turning the wheel in
both directions until the tires begin to move.
NOTE: The wheel free play should be checked with the
engine running.
Free play: 0 ± 30 mm (0 ± 1.18 in)
2. Also check the steering wheel for play and looseness
in the mount by moving it back and forth and
sideways. When test driving, check for hard steering,
steering shimmy and tendency to pull to one side.
Front End Alignment Inspection and
Adjustment
General Description
ªFront End Alignmentº refers to the angular relationship
between the front wheels, the front suspension attaching
parts and the ground.
Proper front end alignment must be maintained in order to
insure efficient steering, good directional stability and to
prevent abnormal tire wear.
The most important factors of front end alignment are
wheel toe-in, wheel camber and axle caster.Camber:
This illustration shows view from the front of the vehicle.
480RS004Camber is the vertical tilting inward or outward of the front
wheels. When the wheels tilt outward at the top, the
camber is positive (+). When the wheels tilt inward at the
top, the camber is negative (-). The amount of tilt
measured in degrees from the vertical is called the
camber angle (1). If camber is extreme or unequal
between the wheels, improper steering and excessive tire
wear will result. Negative camber causes wear on the
inside of the tire, while positive camber causes wear to the
outside.
Caster:
This illustration shows view from the side of the vehicle.
480RS005

2A±18
POWER±ASSISTED STEERING SYSTEM
Power Steering Unit
Power Steering Unit and Associated Parts
440R100001
Legend
(1) Bracket
(2) Transfer Gear Assembly(3) Universal Joint Assembly
(4) Power Steering Unit Assembly
(5) Crossmember
Removal
1. Remove the stone guard.
2. Remove the transfer gear assembly and universal
joint assembly.
Make a setting mark across the coupling flange and
transfer gear assembly to ensure reassembly of the
parts in the original position.
3. Drain power steering fluid.
4. Remove the tie rod end assembly from knuckle.
Use tie rod end remover J±29107.
433RW002

POWER±ASSISTED STEERING SYSTEM2A±25
Inspection and Repair
Make all necessary adjustments, repairs, and part
replacements if wear, damage, or other problems are
discovered during inspection.
Rotor
442RS002Check that the groove in the vane is free from excessive
wear and that the vane slides smoothly. When part
replacement becomes necessary, the pump cartridge
should be replaced as a subassembly.
Vane
442RS003
Sliding faces of the vane should be free from wear.
(Particularly the curved face at the tip that contact with the
cam should be free from wear and distortion). When part
replacement becomes necessary, the pump cartridge
should be replaced as a subassembly.
Cam
The inner face of the arm should have a uniform contact
pattern without a sign of step wear. When part
replacement becomes necessary, the pump cartridge
should be replaced as a subassembly.
Side Plate
The sliding faces of parts must be free from step wear
(more than 0.01 mm), which can be felt by the finger nail.
The parts with minor scores may be reused after lapping
the face.
Relief Valve
The sliding face of the valve must be free from burrs and
damage. The parts with minor scores may be reused after
smoothing with emery cloth (#800 or finer).
Shaft
Oil seal sliding faces must be free from a step wear which
can be felt by the finger nail. Bushing fitting face must be
free from damage and wear.
O-ring, Oil Seal, Snap Ring
Be sure to discard used parts, and always use new parts
for installation. Prior to installation, lubricate all seals and
rings with power steering fluid.
Pressure Switch
Check the switch operation as follows:
With engine idling and A/C on, turn the steering wheel
fully to the left; compressor should interrupt and engine
idle speed will increase. Shut off A/C and again turn
steering fully to the left; engine idle will increase. If system
fails to function properly, disconnect connector at the
pressure switch and repeat system check while testing
continuity across disconnected SW connector.
Reassembly
1. Install oil seal to front housing. Be sure to discard
used oil seal, and always use new parts for
installation.
CAUTION: When installing the oil seal, be careful
not to damage the oil seal contacting surface of the
housing.
2. Install shaft assembly.

POWER±ASSISTED STEERING SYSTEM2A±27
Main Data and Specifications
General Specifications
Oil pumpTypeVane
Operating
fluidATF DEXRON)±III
Torque Specifications
E02RX004