Lexus SC300 / Lexus SC400. Service manual — part 710
REPLACEMENT OF OIL SEAL
1.
REMOVE OIL SEAL
(a) Using snap ring pliers, remove the snap ring and plate
washer.
(b) Using a screwdriver, pry out the oil seal.
NOTICE: Be careful not to damage the housing.
2.
INSTALL OIL SEAL
(a) Using
SST and a hammer, tap in a new oil seal to a depth
of 4.5–5.5 mm (0.177–0.217 in.) from the housing edge.
(b) Using snap ring pliers, install the plate washer and snap
ring.
(c) Apply fluid to the oil seal lip.
–
COOLIING SYSTEM
Electronically Controlled Hydraulic Cooling Fan
(Hydraulic Motor)
CO–53
ASSEMBLY OF HYDRAULIC MOTOR
(See Components on page
HINT:
•
Thoroughly clean all parts to be assembled.
•
Before installing the parts, apply new fluid to all sliding
and rotating surfaces.
1. MOUNT
MOTOR
HOUSING
Slightly mount the motor housing in a vise.
NOTICE: Be careful not to damage the motor housing.
2.
INSTALL FRONT THRUST WASHER
3.
INSTALL DRIVEN AND DRIVE ROTORS
Install the drive and driven rotors with the dot mark facing up-
ward.
4.
INSTALL DRIVE SHAFT
5.
INSTALL REAR THRUST WASHER
6. INSTALL
MOTOR
COVER
(a) Install a new O–ring to the motor housing groove.
(b) Install the motor cover with the four bolts.
Torque: 28 N
⋅
m (290 kgf
⋅
cm, 21 ft
⋅
lbf)
CO–54
–
COOLIING SYSTEM
Electronically Controlled Hydraulic Cooling Fan
(Hydraulic Motor)
7.
INSTALL DRIVE SHAFT PRELOAD
(a) Check that the drive shaft rotates smoothly without
abnormal noise.
(b) Temporarily install the pulley nut, and check the rotating
torque.
Rotating torque:
0.3 N
⋅
m (3.0 kgf
⋅
cm, 2.6 in.
⋅
lbf)
INSTALLATION OF HYDRAULIC MOTOR
(See Components on page
1.
INSTALL HYDRAULIC MOTOR TO FAN SHROULD
Install the hydraulic motor with the three bolts.
Torque: 4.9 N
⋅
m (50 kgf
⋅
cm, 43 in.
⋅
lbf)
2.
INSTALL COOLING FAN TO HYDRAULIC MOTOR
Install the fan with the plate washer bolt.
Tighten the nut by turning it counterclockwise.
Torque: 15 N
⋅
m (150 kgf
⋅
cm, 11 ft
⋅
lbf)
3. INSTALL
RADIATOR
FAN
SHROULD
(a) Place the fan shrould on the radiator.
(b) Slightly
lift the fan shrould, and connect the two oil cooler
hoses (for cooling fan) to the hose clamp on the fan
shrould.
(c) Install the fan shrould with the four bolts.
Torque: 4.9 N
⋅
m (50 kgf
⋅
cm, 43 in.
⋅
lbf)
–
COOLIING SYSTEM
Electronically Controlled Hydraulic Cooling Fan
(Hydraulic Motor)
CO–55
(d) Install the wire clamp to the fan shrould.
4. INSTALL COOLING FAN RESERVOIR TANK TO FAN
SHROULD
(a) Install the reservoir tank with the four bolts.
Torque: 4.9 N
⋅
m (50 kgf
⋅
cm, 43 in.
⋅
lbf)
(b) Install the suction hose to the clamp on the fan shrould.
5.
INSTALL COOLING FAN INLET PIPE TO FAN SHROULD
Install the inlet pipe with the two bushings, brackets and
bolts.
Torque: 4.9 N
⋅
m (50 kgf
⋅
cm, 43 in.
⋅
lbf)
6. CONNECT
HOSES
Connect the following hoses:
(1) Pressure
hose
to
hydraulic
motor
Connect the
pressure hose with a new gasket and union bolt.
Torque: 64 N
⋅
m (650 kgf
⋅
cm, 47 ft
⋅
lbf)
(2) Return hose to hydraulic motor.
(3) Upper radiator hose to radiator.
CO–56
–
COOLIING SYSTEM
Electronically Controlled Hydraulic Cooling Fan
(Hydraulic Motor)
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