Fluid Pressure Inspection

Assemble the SSTs as shown in the figure.
1. Tightening torque 40-49 N.m {4.0-5.0 kgf.m, 29-36 ft.lbf}
Mark both hose connections to ensure that the hose is reinstalled in its original position.

Fig 1: Assembling Special Service Tools
Courtesy of MAZDA MOTORS CORP.
Disconnect the pressure pipe from the oil pump, and connect the SSTs
Bleed the air from the system.

Fig 2: Connecting Special Service Tools To Oil Pump
Courtesy of MAZDA MOTORS CORP.
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. Increase the engine speed to 1,000-1,500 RPM and measure the fluid pressure generated by the oil pump.

Fig 3: Checking Pump Fluid Pressure (Gauge Valve Closed)
Courtesy of MAZDA MOTORS CORP.
- If the pressure is not within specification, 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.
1. Oil pump fluid pressure 8.33-9.06 MPa {85.0-92.3 kgf/cm ² , 1,209-1,314 psi}
Open the gauge valve fully and increase the engine speed to 1,000-1,500 RPM.

Fig 4: Checking Pump Fluid Pressure (Gauge 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 specification, repair or replace the gear housing 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.
1. Gear housing fluid pressure 8.33-9.06 MPa {85.0-92.3 kgf/cm ² , 1,209-1,314 psi}
Remove the SSTs . Install and tighten the pressure pipe to the specified torque.
1. Tightening torque 32-47 N.m {3.2-4.8 kgf.m, 24-34 ft.lbf}
Bleed the air from the system.