1998 ISUZU TROOPER Service Repair Manual

turn signal alarm AUX four wheel drive radio engine oil

Page 313 of 3573

ISUZU TROOPER 1998 Service Repair Manual POWER STEERING 2A – 11
•If the pressure recorded is lower than 9300
kPa (1350 psi) For 6VD1, 6VE1, and 9800 kPa
(100 kg/cm
2/ 1420 psi) For 4JG2, 4JX1, the
valve or the rotating group in the pump

Page 314 of 3573

ISUZU TROOPER 1998 Service Repair Manual BLEEDING THE POWER
STEERING SYSTEM
When a power steering pump or gear has been
installed, or an oil line has been disconnected, the
air that has entered the system must be bled out
before the vehicle

BLEEDING THE POWER
STEERING SYSTEM
When a power steering pump or gear has been
installed, or an oil line has been disconnected, the
air that has entered the system must be bled out
before the vehicle is operated. If air is allowed to
remain in the power steering fluid system, noisy
and unsatisfactory operation of the system may
result.
BLEEDING PROCEDURE
When bleeding the system, and any time fluid is
added to the power steering system, be sure to use
only power steering fluid as specified in
“MAINTENANCE AND LUBRICATION” in section
0B.
1. Fill the pump fluid reservoir to the proper
level and let the fluid settle for at least two
minutes.
2. Start the engine and let it run for a few
seconds.
Do not turn the steering wheel. Then turn the
engine off.
3. Add fluid if necessary.
4. Repeat the above procedure until the fluid
level remains constant after running the
engine.
5. Raise the front end of the vehicle so that the
wheels are off the ground.
6. Start the engine. Slowly turn the steering
wheel right and left, lightly contacting the
wheel stops.
7. Add power steering fluid if necessary.
8. Bring down the vehicle, set the steering wheel
at the straight forward position after turning it
to its full steer positions 2 or 3 times, and stop
the engine.
9. Stop the engine. Check the fluid level and
refill as required.
10. If the fluid is extremely foamy, allow the
vehicle to stand a few minutes and repeat the
above procedure.
INSPECT
•Belt for tightness.
•Pulley for looseness or damage. The pulley
should not wobble with the engine running.
•Make sure that hose and pipes are properly
fitted.
•Fluid level and fill to the proper level.
FLUSHING THE POWER
STEERING SYSTEM
1. Raise the front end of the vehicle off the
ground until the wheels are free to turn.
2. Remove the fluid return line at the reservoir
inlet connector and plug the connector.
Position the line toward a large container to
catch the draining fluid.
3. While running the engine at idle, fill the
reservoir with new power steering fluid. Turn
the steering wheel in both directions. Do not
contact wheel stops or hold the wheel in a
corner, or fluid will stop and the pump will be
in pressure relief mode. A sudden overflow
from the reservoir may develop if the wheel is
held at a stop.
4. 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.
5. 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. 2A – 12 POWER STEERING
ON-VEHICLE SERVICE

Page 315 of 3573

ISUZU TROOPER 1998 Service Repair Manual POWER STEERING 2A – 13
STEERING GEAR
Removal Steps
1. Pipe
2. Nut
3. Pitman arm
4. Universal joint bolt
5. Gear box mounting bolt and nut
6. Gear box
Installation Steps
6. Gear box
5. Gear box moun

Page 316 of 3573

ISUZU TROOPER 1998 Service Repair Manual 2A – 14 POWER STEERING
4. Universal Joint Bolt
Make a setting mark across the coupling flange and
worm shaft to ensure reassembly of the parts in the
original position.
5. Gear Box Mounting Bolt and

Page 317 of 3573

ISUZU TROOPER 1998 Service Repair Manual POWER STEERING 2A – 15
3. Pitman Arm
Align the notched tooth.
2 Nut
Pitman Arm Nut Torque N·m (kg·m/lb·ft)
216 (22.0 / 159)
1. Pipe
Pipe Nut Torque N·m (kg·m/lb·ft)
44 (4.5 / 33)

Page 318 of 3573

ISUZU TROOPER 1998 Service Repair Manual 2A – 16 POWER STEERING
POWER STEERING PUMP (6VD1, 6VE1 Engine Models)
6
5
3
4
5
1 2
Removal Steps
1. Drive belt
2. Pulley
3. Hose, suction
4. Hose, flexible
5. Bolt
6. Pump assembly
Installation St

Page 319 of 3573

ISUZU TROOPER 1998 Service Repair Manual POWER STEERING 2A – 17
1. Drive Belt
2. Pulley
3. Hose, Suction
4. Hose, Flexible
5. Bolt
6. Pump Assembly
CAUTION:
When removing the pump assembly, be careful not to
damage the wiring harness unde

Page 320 of 3573

ISUZU TROOPER 1998 Service Repair Manual 2A – 18 POWER STEERING
POWER STEERING PUMP (4JG2 Engine Model)
Removal Steps
1. Hose, suction
2. Hose, flexible
3. Adjust nut
4. Bolt
5. Adjust bolt
6. Belt
7. Bracket
8. Pulley
9. Bolt
10. Bracket

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