Fluid Pressure Inspection

Assemble the SSTs as shown in the figure.

Fig 1: Assembling SST
Courtesy of MAZDA MOTORS CORP.
Disconnect the pressure pipe from the steering gear, and connect the SSTs.
Tightening torque 29.4-44.1 N.m {3.00-4.49 kgf.m, 21.7-32.5 ft.lbf}

Fig 2: Connecting SSTs
Courtesy of MAZDA MOTORS CORP.
Bleed the air from the system.
Open the gauge valve fully.
Start the engine and turn the steering wheel fully left and right to raise the fluid temperature to 50- 60 °C {122-140 °F} .
Close the gauge valve completely.

Fig 3: Measuring Oil Pump Fluid Pressure (Valve Closed)

Courtesy of MAZDA MOTORS CORP.

Increase the engine speed to 1,000-1,500 rpm and measure the fluid pressure generated by the oil pump.
- If the pressure is not within the specification, repair or replace the oil pump component.
CAUTION:
- If the valve is left closed for more than 5 seconds, the fluid temperature will rise excessively and adversely affect the oil pump.
Oil pump fluid pressure 8.23-8.92 MPa {84.0-90.9 kgf/cm ² , 1,200-1,290 psi}
Open the gauge valve fully and increase the engine speed to 1,000-1,500 rpm .

Fig 4: Measuring Oil Pump Fluid Pressure (Valve Open)

Courtesy of MAZDA MOTORS CORP.

Turn the steering wheel fully to the left and right, then measure the fluid pressure generated at the gear housing.
- If the pressure is not within the specification, repair or replace the steering gear component.
CAUTION:
- If the steering wheel is kept in the fully turned position for more than 5 seconds, the fluid temperature will rise excessively and adversely affect the oil pump.
Gear housing fluid pressure 8.23-8.92 MPa {84.0-90.9 kgf/cm ² , 1,200-1,290 psi}
Remove the SSTs . Install and tighten the pressure pipe to the specified torque.
Tightening torque 29.4-44.1 N.m {3.00-4.49 kgf.m, 21.7-32.5 ft.lbf}
Bleed the air from the system.