Power Steering Pressure - Mazda 323 1988 Workshop Manual

INSPECTION AND ADJUSTMENT 10
POWER STEERING PRESSURE
1. Disconnect the high-pressure hose of the gear
housing side, and attach the
SST
so that the valve
is connected to the gear housing side.
Tightening torque: 39-49 N.m
(4.0-5.1 m-kg, 29-36 ft-lb)
gear housing
mpletely
2. Bleed the air from the system.
3. After opening the gauge valve completely, start the
engine and turn the steering wheel fully left and
right to raise the fluid temperature to 50-60°C
(122-140°F).
4. To measure the fluid pressure generated by the
oil pump, close the gauge valve completely and
increase the engine rpm to
1000-1500 rpm.
Oil pump fluid-pressure
6,867 Z% kPa (70 % kg/cm* 995 2;: psi)
Warning
If the valve is left closed for more than 15 se-
conds, the fluid temperature will increase ex-
cessively and adversely affect the oil pump.
If the fluid pressure is low, replace the oil pump as-
sembly.
5. To measure the fluid pressure generated at the
gear housing, first open the gauge valve complete-
ly, increase the engine rpm to
1,000-l ,500 rpm,
and then turn the steering wheel all the way to the
left and right.
Thermometer [50-60°C (122- 140°F)1
Warning Warning
If the steering wheel is kept in the fully turned If the steering wheel is kept in the fully turned
positlon for more than 15 seconds, the fluid positlon for more than 15 seconds, the fluid
temperature will rise excessively. temperature will rise excessively.
Gear housing fluid-pressure limit
6,867 -'#%?A kPa (70 -'B.s kg/cm' 995 _'36 psi)
If the fluid pressure is low, repair or replace the gear
box.
6. After removing the gauge set, tighten the high-
pressure hose to the specified torque.
7. Bleed the air from the system.
(Refer to page
1 O-l 0.)
10-11