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
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