Lexus SC300 / Lexus SC400. Manual — part 745
2.
INSTALL PUMP ASSEMBLY
Torque the bolts and nut on the pump assembly in the order
shown.
Torque:
Bolt 39 N
⋅
m (400 kgf
⋅
cm, 29 ft
⋅
lbf)
Nut 43 N
⋅
m (440 kgf
⋅
cm, 32 ft
⋅
lbf)
3.
CONNECT PRESSURE TUBE
Make sure the stopper is touching the pump housing, as
shown, then torque the union bolt.
Torque: 49 N
⋅
m (500 kgf
⋅
cm, 36 ft
⋅
lbf)
4.
BLEED POWER STEERING SYSTEM
(See page
)
–
STEERING
POWER STEERING
SR–119
COMPONENTS
SR0G5–03
SECTIONAL VIEW
SR0G6–01
SR–120
–
STEERING
POWER STEERING
POWER STEERING PUMP
DISASSEMBLY
SR0G7–02
1.
MOUNT POWER STEERING PUMP IN VISE
NOTICE: Do not tighten the vise too tight.
2.
REMOVE PUMP PULLEY
(a) Using SST, remove the pulley set nut.
SST 09278–54012
(b) Remove the pulley.
3.
REMOVE SUCTION PORT UNION
(a) Remove the 2 bolts and union.
(b) Remove the O–ring from the union.
4. REMOVE PRESSURE PORT UNION, FLOW CONTROL
VALVE AND SPRING
(a) Remove the pressure port union.
(b) Remove the O–ring from the union.
(c) Remove the flow control valve and spring.
5.
REMOVE SPRING SEAT
(a) Using snap ring pliers, remove the snap ring.
HINT: The snap ring is easier to remove if the spring seat is
pressed down slightly.
(b) Temporarily install a bolt to the seat and pull out it.
HINT: Use a bolt with diameter 6 mm (0.24 in.) and pitch 1.0
mm (0.039 in.).
(c) Remove the O–ring from the seat.
–
STEERING
POWER STEERING
SR–121
6.
REMOVE VANE PUMP SHAFT WITH BEARING
(a) Using snap ring pliers, remove the snap ring.
(b) Temporarily install the appropriate plate washer and pulley
nut to the pump shaft.
(c) Using SST, pull out the pump shaft.
SST 09910–00015 (09911–00011, 09912–00010)
7.
REMOVE REAR BRACKET
(a) Remove the 4 bolts and rear bracket.
(b) Remove the O–ring from the bracket.
8. REMOVE
WAVE
WASHER
9. REMOVE
SIDE
FRONT PLATE, CAM RING, ROTOR, VANE
PLATES AND SIDE REAR PLATE
(a) Using an extension bar and press, remove the side front
plate, cam ring, rotor, vane plates and side rear plate as an
assembly.
HINT: Catch the assembly in your hand to prevent it dropping.
SR–122
–
STEERING
POWER STEERING
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