Regular Pressure Measurement

Connect the ST1, ST2 and ST3.
Preparation tool:

ST1: PRESSURE GAUGE (925711000)

ST2: ADAPTER HOSE B (34099AC020)

ST3: ADAPTER HOSE A (34099AC010)

Fig 1: Connecting ST1, ST2 And ST3
Courtesy of SUBARU OF AMERICA, INC.
Remove the air intake duct.
Disconnect the pressure hose (a) from the pump.
Using the gasket (Part No. 34621AC024) and bolt (Part No. 34620AC010), install the ST2 to pump instead of pressure hose (a).

Fig 2: Identifying Pressure Hose
Courtesy of SUBARU OF AMERICA, INC.
Attach the ST3 to the end of pressure hose which is removed from pump.
Replenish power steering fluid up to the specified level.
Open the valve, and start the engine.

Fig 3: Measuring Valve Hydraulic Pressure
Courtesy of SUBARU OF AMERICA, INC.
Measure the regular pressure.
Service limit:

981 kPa (10 kgf/cm ² , 142 psi) or less
If it is not within the specification, replace the faulty part for the following problems. (Pipe or hose clogged, leaks from fluid line, and mixture of foreign matter in fluid line)