Subaru 2004 IMPREZA Service Manual page 39

Axial play (Direction
0.9 mm (0.035 in) or less
(1)
P
(1) Dial indicator
2) Ditch deflection of pulley
Service limit:
1.0 mm (0.039 in) or less
NOTE:
Read the value for one surface of V ditch, and then
the value for another off the dial.
(1) Dial indicator
3) Resistance to rotation of pulley
Service limit:
Maximum load; 9.22 N (0.94 kgf, 2.07 lb) or
less
NOTE:
• A rather higher value may be indicated when pul-
ley starts turning.
Oil Pump
)
PS-00146
PS-00147
PS-83
POWER ASSISTED SYSTEM (POWER STEERING)
• Measure the load during rotation and make a
judgment.
(1) Spring balance
3. HYDRAULIC PRESSURE
NOTE:
• Be sure to complete all items aforementioned in
"INSPECTION", prior to measuring hydraulic pres-
sure. Otherwise, pressure can not be measured
correctly. <Ref. to PS-87, INSPECTION, General
Diagnostic Table.>
• Do not leave the valve of pressure gauge closed
or hold the steering wheel at stop end for 5 seconds
or more in any case, as the oil pump may be dam-
aged due to long keep of these conditions.
• Put a cotton cloth waste at a place where fluid
drops before the pressure gauge is installed. Wipe
off split fluid thoroughly after the measurement.
1) REGULAR PRESSURE MEASUREMENT
(1) Connect the ST1, ST2 and ST3.
ST1 92511000 PRESSURE GAUGE
ST2 34099AC020 ADAPTER HOSE B
ST3 34099AC010 ADAPTER HOSE A
(2) Remove the air intake duct.
(3) Disconnect the pipe C from the pump.
(4) Using the gasket (Part No. 34621AC021)
and bolt (Part No. 34620AC010), install the ST2
to the pump instead of pipe C.
(1)
(1) Bolt A
(2) Pipe C
(3) Pipe D
PS-00148
(2)
(3)
PS-00432