Isuzu Amigo / Axiom / Trooper / Rodeo / VehiCross. Manual - part 574

POWER ASSISTED SYSTEM

2A–25

Gasket Setting

440RW002

D

Note the gasket(1) installation direction.

D

Apply a thin coat of power steering fluid to lip of each
part.

Reassembly

1. Install gear box.
2. Apply a thin coat of power steering fluid to the new

O-ring(2) and be sure to discard used part, then install
o-ring.

3. Apply a thin coat of power steering fluid to the new

seal ring(1) and be sure to discard used part,  then
install seal ring.

4. Apply a thin coat of power steering fluid to the new

O-ring and be sure to discard used part, then install
o-ring.

440RS010

5. Install ball-nut and valve housing assembly.

D

Always keep the ball screw and valve housing
assembly in a horizontal position (avoid holding it
vertically), or the rack piston will fall off onto the end
of the worm, causing the rack piston to slip out of the
worm shaft and ball to fall out.

440RS005

D

Be careful not to drop the O-ring into the valve
housing.

D

Tighten the valve housing bolts to the specified
torque.

Torque: 47 N·m (35 lb ft)

6. Install sector shaft.

D

Tape the sector shaft serrations to protect the seal
ring from damage.

D

Align the center tooth of ball nut with that of the
sector shaft.

440RS004

7. Install O-ring. 

2A–26

POWER ASSISTED SYSTEM

8. Install top cover assembly and tighten the fixing bolts

to specified torque.

Torque: 47 N·m (35 lb ft)

9. Adjust the backlash between the worm gear and the

ball nut.

440RS011

D

With the worm gear rotating, set it to the straight
ahead position.

D

Set the worm shaft preload to below 10kg·cm with
the sector shaft adjusting screw.

D

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) lower than in the straight
ahead position.

D

Lock the sector shaft adjusting screw with the lock
nut.

Lock nut torque: 41 N·m (30 lb ft)

10. Apply a thin coat of power steering fluid to oil seal lip of

each part, then use installer J–26508 to install oil seal.

440RS012

11. Install back up ring and position the chamfered face

(outer circumference) towards the oil seal.

12. Install retaining ring and position the chamfered face

(outer circumference) towards the oil seal.

13. Install dust cover.

POWER ASSISTED SYSTEM

2A–27

Main Data and Specifications

General Specifications

Steering unit

Type

Integral, ball screw

Gear ratio

16.3 : 1

Torque Specifications

E03RS003

2A–28

POWER ASSISTED SYSTEM

Power Steering Pump

Power Steering Pump and Associated Parts

436R200001

Legend

(1) Hose, Suction
(2) Hose, Flexible
(3) Bolt

(4) Belt
(5) Pulley
(6) Pump Assembly

Removal

1. Drain the engine coolant.
2. Place a drain pan below the pump.
3. Remove the air cleaner duct (1) and the radiator

upper hose (2).

436RW004