Subaru Legacy III (2000-2003 year). Manual - part 850

 

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Subaru Legacy III (2000-2003 year). Manual - part 850

 

 

PS-88

POWER ASSISTED SYSTEM (POWER STEERING)

OIL PUMP

3. HYDRAULIC PRESSURE

CAUTION:
• Be sure to complete all items aforementioned
in “INSPECTION”, prior to measuring hydraulic
pressure. Otherwise, pressure can not be mea-
sured correctly. <Ref. to PS-94, 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 damaged due to long keep of
these conditions.
• Put cotton cloth waste at a place where fluid
drops before pressure gauge is installed. Wipe
off split fluid thoroughly after the measure-
ment.

NOTE:
Keep engine idling during the measurement.
1) REGULAR PRESSURE MEASUREMENT 

(1) Connect ST1, ST2 and ST3.

ST1

92511000

PRESSURE GAUGE

ST2

34099AC020 ADAPTER HOSE B

ST3

34099AC010 ADAPTER HOSE A

(2) Disconnect pressure hose from the pump.
(3) Using gasket (Part No. 34621AC021) and
bolt (Part No. 34620AC010), instal ST2 to the
pump instead of pressure hose.
Except 3.0 L and Turbo model:

3.0 L and Turbo model:

(4) Disconnect pipe C form pipe (on gearbox
side).
(5) Install ST3 to pipe C.

(6) Replenish power steering fluid up to speci-
fied level.
(7) Open valve, and start the engine.
(8) Measure regular pressure.

ST1

925711000

PRESSURE GAUGE

ST2

34099AC020 ADAPTER HOSE B

ST3

34099AC010 ADAPTER HOSE A

Service limit:

981 kPa (10 kg/cm

2

, 142 psi) or less

(1) Suction hose

(2) Pressure hose

PS-00225

( 1 )

( 2 )

(1) Suction hose

(2) Pressure hose

(1) Pipe C

(2) Pipe D

PS-00228

( 1 )

( 2 )

( 1 )

( 2 )

PS-00205

Open

PS-00152

ST1

ST2

ST3

PS-89

POWER ASSISTED SYSTEM (POWER STEERING)

OIL PUMP

(9) If it is not within the specified value, replace
the troubled part caused by the following symp-
toms; pipe or hose clogged, leaks from fluid line,
and mix of foreign objects in fluid line.

2) Measure relief pressure.

(1) Using STs, measure relief pressure.
(2) Close valve.
(3) Measure relief pressure.

ST1

925711000

PRESSURE GAUGE

ST2

34099AC020 ADAPTER HOSE B

ST3

34099AC010 ADAPTER HOSE A

Service limit:

Except 3.0 L and Turbo model

9,611 — 10,199 kPa (98 — 104 kg/cm

2

, 

1,394 — 1,479 psi)

3.0 L and Turbo model

7,650 — 8,340 kPa (78.03 — 88.13 kg/cm

2

, 

1,109 — 1,209 psi)

(4) If it is not within the specified value, replace
the oil pump.

3) Measure working pressure.

(1) Using STs, measure working pressure.
(2) Open valve.
(3) Measure working pressure of control valve
by turning wheel from stop to stop.

ST1

925711000

PRESSURE GAUGE

ST2

34099AC020 ADAPTER HOSE B

ST3

34099AC010 ADAPTER HOSE A

Service limit:

Except 3.0 L and Turbo model

9,611 — 10,199 kPa (98 — 104 kg/cm

2

, 

1,394 — 1,479 psi)

3.0 L and Turbo model

7,650 — 8,340 kPa (78.03 — 88.13 kg/cm

2

, 

1,109 — 1,209 psi)

(4) If it is within the specified value, measure
steering effort. <Ref. to PS-97, MEASURE-
MENT OF STEERING EFFORT, INSPECTION,
General Diagnostic Table.>  If it is not within
specified value, replace control valve itself or
control valve and pinion as a single unit with new
ones.

PS-00153

ST1

ST3

ST2

Open

PS-00152

ST1

ST2

ST3

PS-90

POWER ASSISTED SYSTEM (POWER STEERING)

RESERVOIR TANK

9. Reservoir Tank

A: REMOVAL

1. EXCEPT 3.0 L AND TURBO MODEL

1) Drain fluid from the reservoir tank.
2) Disconnect pipe D from return hose and suction
hose from oil pump.

CAUTION:
• Do not allow fluid from the hose end to come
into contact with pulley belt.
• To prevent foreign matter from entering the
hose and pipe, cover the open ends of them
with a clean cloth.

3) Remove reservoir tank from bracket by pulling it
upwards.

2. 3.0 L AND TURBO MODEL

1) Drain fluid from the reservoir tank.
2) Disconnect return hose and suction hose from
reservoir tank.

CAUTION:
• Do not allow fluid from the hose end to come
into contact with pulley belt.
• To prevent foreign matter from entering the
hose, cover the open ends of them with a clean
cloth.

3) Remove reservoir tank from bracket by pulling it
upwards.

B: INSTALLATION

1. EXCEPT 3.0 L AND TURBO MODEL

1) Install reservoir tank to bracket.
2) Connect pipes D to return hose and suction hose
to oil pump.

3) Feed the specified power steering fluid. <Ref. to
PS-92, Power Steering Fluid.>

(1) Suction hose

(2) Pipe D

(3) Return hose

( 1 )

( 2 )

( 3 )

PS-00242

(1) Suction hose

(2) Return hose

(1) Suction hose

(2) Pipe D

(3) Return hose

PS-00243

( 1 )

( 2 )

( 1 )

( 2 )

( 3 )

PS-00242

PS-91

POWER ASSISTED SYSTEM (POWER STEERING)

RESERVOIR TANK

2. 3.0 L AND TURBO MODEL

1) Install reservoir tank to bracket.
2) Connect return hose and suction hose to reser-
voir tank.

3) Feed the specified power steering fluid. <Ref. to
PS-92, Power Steering Fluid.>

C: INSPECTION

Check reservoir tank for cracks, breakage, or dam-
age. If any cracks, breakage, or damage is found,
replace reservoir tank.

(1) Suction hose

(2) Return hose

PS-00243

( 1 )

( 2 )

 

 

 

 

 

 

 

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