Toyota Hilux Surf 1993 Owner's Manual page 775

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STEERING
Power Steering (On–Vehicle Inspection)
4. CHECK FLUID PRESSURE READING WITH VALVE
CLOSED
Close the pressure gauge valve and observe the reading
on the gauge.
Minimum pressure:
3VZ Engine 7,845 kPa (80 kg f/cm
Ex. 3VZ Engine 7,355 kPa (75 kgf/cm
NOTICE:
Do not keep the valve closed for more than 10 sec–
onds.
Do not let the fluid temperature become too high.
If pressure is low, repair or replace the PS pump.
5. OPEN VALVE FULLY
6. CHECK AND RECORD PRESSURE READING AT 1,000
RPM
7. CHECK AND RECORD PRESSURE READING AT 3,000
RPM
Check that there is 490 kPa (5 kgf/cm
difference in pressure between the 1,000 rpm and 3,000
rpm checks.
If the difference is excessive, repair or replace the flow
control valve of the PS pump.
8. CHECK PRESSURE READING WITH STEERING WHEEL
TURNED TO FULL LOCK
[Standard type power steering]
Be sure the pressure gauge valve is fully opened and the
engine idling.
Minimum pressure:
3VZ Engine
Ex. 3VZ Engine
If pressure is low, the gear housing has an internal leak
and must be repaired or replaced.
[Progressive power steering]
(a) Turn the steering wheel to full lock position.
(b) Disconnect the solenoid connector.
(c) Be sure the pressure gauge valve is fully opened and
the engine is running at 1,000 rpm.
Minimum pressure:
3VZ Engine
Ex. 3VZ Engine
If pressure is low, the gear housing has an internal leak or
the solenoid is faulty.
2
, 1,138 psi)
2
, 1,067 psi)
2
, 71 psi) or less
2
7,845 kPa (80 kg f/cm
, 1,138 psi)
2
7,355 kPa (75 kgf/cm
, 1,067 psi)
2
7,845 kPa (80 kgf/cm
, 1,138 psi)
2
7,355 kPa (75 kgf/cm
, 1,067 psi)
SR–43

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