Subaru Legacy (2005 year). Manual - part 840

PS-31

POWER ASSISTED SYSTEM (POWER STEERING)

Steering Gearbox [LHD Model]

16) Insert the ST from pinion housing side and re-
move the oil seal using press.
ST

34099PA010

OIL SEAL REMOVER (3.0 R 
model)

ST

34199AE050

OIL SEAL REMOVER (Except 
for 3.0 R model)

17) Using a press, remove the bushing of gearbox
installation portion.

2. CONTROL VALVE

1) Disconnect the pipes A and B from gearbox.
2) Secure the gearbox removed from vehicle in a
vise using ST.
ST1

926200000

STAND

ST2

34199AG000 BOSS D

CAUTION:
Secure the gearbox in a vise using the ST as 
shown. Do not secure the gearbox assembly 
without this ST.

3) Using the ST, loosen the lock nut.
ST

926230000

SPANNER

4) Tighten the adjusting screw until it no longer
tightens.

5) Loosen the adjusting screw and remove the
spring and sleeve.

(1) Press

(2) Oil seal

PS-00138

(2)

(1)

ST

PS-00517

(1) Clamp

(1) Lock nut

(1) Adjusting screw

PS-00492

(1)

ST1

ST2

PS-00494

ST

(1)

PS-00495

(1)

PS-32

POWER ASSISTED SYSTEM (POWER STEERING)

Steering Gearbox [LHD Model]

6) Remove the two bolts securing valve assembly.

7) Carefully draw out the input shaft and remove
the valve assembly.

8) Put a vinyl tape around the spline portion, and
slide the dust cover to remove.

9) Using a press remove the pinion & valve assem-
bly from valve housing.

10) Using the ST and a press, remove the bushing
and oil seal from the valve housing.
ST

34199AG090 INSTALLER & REMOVER

CAUTION:
• Do not apply a force to the end surface of
valve housing.
• Do not reuse oil seal after removal.

(1) Dust cover

PS-00116

PS-00143

PS-00144

(1)

(1) Pinion & valve ASSY

(2) Valve housing

(3) Cloth

(1) Oil seal

(2) Bushing

(2)

(3)

(1)

PS-00149

(2)

(1)

PS-00150

ST

PS-33

POWER ASSISTED SYSTEM (POWER STEERING)

Steering Gearbox [LHD Model]

11) Using a snap ring pliers, remove the snap ring,
valve, oil seal and back-up washer.

CAUTION:
Be careful not to scratch pinion and valve as-
sembly.

D: ASSEMBLY

1. RACK HOUSING ASSEMBLY

1) Using a press, install the bushing to gearbox in-
stallation portion.

2) Insert the ST to rack.
ST

34199AG040 GUIDE (3.0 R model)

ST

34199AG030 GUIDE (Except for 3.0 R mod-

el)

3) Install the seal ring to piston portion of rack.

(1) Using the ST, form the seal ring properly.

ST1

34199AG080 FORMER PISTON

ST2

34199AG060 GUIDE G (26) (3.0 R model)

ST2

34199AG050 GUIDE G (24) (Except for 3.0 

R model)

(2) Using the ST-B and ST-C, install the oil seal
to ST-A.

ST

34199FE040

INSTALLER A, B, C (3.0 R 
model)

ST

927490000

INSTALLER A, B, C (Except 
for 3.0 R model)

NOTE:
Face the oil seal in the direction as shown in the fig-
ure.

(1) Snap ring

(2) Valve

(3) Oil seal

(4) Back-up ring

(1) Seal ring

(2) Rack

PS-00518

(1)

(2)

(3)

(4)

PS-00519

PS-00520

ST

(1)

(2)

(1) Seal ring

(2) Rack

(A) Oil seal

PS-00559

(2)

(1)

ST1

ST2

PS-00075

ST  A

ST  B

ST  C

(A)

PS-34

POWER ASSISTED SYSTEM (POWER STEERING)

Steering Gearbox [LHD Model]

(3) Insert the ST-A with oil seal assembled from
the gear side of rack. Remove the oil seal from
ST-A near piston, and then remove the ST-A
from rack.

4) Install the back-up washer from the gear side of
rack.

5) Install the ST on rack, equally apply a thin coat of
grease to the rack and ST, and then install the oil
seal.
ST

926250000

GUIDE

CAUTION:
Be careful not to scratch the oil seal lips with 
the inner ring section of piston.

6) Apply a coat of grease to the grooves in rack,
sliding surface of sleeve and sealing surface of pis-
ton. Then insert the rack into steering body from
cylinder side.
7) Check the threaded end of holder and gearbox
cylinder end for burrs, damage and etc. Correct it if
faulty.
8) Insert the ST into gearbox cylinder, and then
press-fit the oil seal.
ST

34199AG010 INSTALLER

9) Temporarily tighten the holder to gearbox cylin-
der.
10) Set the ST to the end of rack.
ST

34199FE000

INSTALLER & REMOVER 
(3.0 R model)

ST

34099FA030

INSTALLER & REMOVER 
(Except for 3.0 R model)

(A) Oil seal

(B) Rack

(C) Piston

(1) Oil seal

(2) Back-up washer

(3) Rack

PS-00076

ST  A

(A)

(B)

(C)

PS-00077

(1) Rack piston inner ring

(2) Outer side oil seal

(3) Rack

PS-00078

PS-00521

ST