Lexus RX300 (MCU15). Service manual — part 575
D03581
D03580
D09691
D09692
D03579
–
AUTOMATIC TRANSAXLE
COMPONENT PARTS
AX–43
U140F AX (RM848E)
(b)
Using a screwdriver, install the snap ring to the transaxle
case.
23.
INSTALL U/D CLUTCH ASSEMBLY
(a)
Coat the bearing and bearing race with petroleum jelly
and install it onto the U/D clutch.
Race diameter: mm (in.)
Inside
Outside
Bearing
37.73 (1.4854)
58.0 (2.283)
Race
29.9 (1.177)
55.5 (2.185)
(b)
Install the U/D clutch assembly to the transaxle case.
24.
INSTALL U/D PLANETARY GEAR ASSEMBLY AND
DIFFERENTIAL ASSEMBLY
(a)
Install the pawl pin and spring to the parking lock pawl.
(b)
Temporarily install the parking lock pawl, shaft and spring
to the transaxle case, as shown in the illustration.
(c)
Install the U/D planetary gear assembly to the transaxle
case.
NOTICE:
Engage all the discs of U/D clutch and hub spline of the U/D
planetary gear assembly firmly and assemble them se-
curely.
D09693
D03576
D03875
D
D09945
Dimension (1)
Dimension (2)
D03928
AX–44
–
AUTOMATIC TRANSAXLE
COMPONENT PARTS
U140F AX (RM848E)
(d)
Install the parking lock pawl shaft.
(e)
Install the pawl shaft with the bolt.
Torque: 9.8 N·m (100 kgf·cm, 7 ft·lbf)
(f)
Using a straight edge and vernier calipers as shown in the
illustration, measure the gap between the top of the differ-
ential drive pinion in the U/D planetary gear and contact
surface of the transaxle case and housing (Dimension D).
NOTICE:
Note down the dimension D as it is necessary for the fol-
lowing process.
(g)
As shown in the illustration, measure the 2 places of the
transaxle housing. Calculate the dimension E using the
formula.
NOTICE:
Note down the dimension E as it is necessary for the follow-
ing process.
HINT:
Dimension E = Dimension (1) – Dimension (2)
25.
INSTALL MULTIPLE DISC CLUTCH HUB
(a)
Install the bearing race to the transaxle while checking its
direction.
Bearing race diameter: mm (in.)
Inside
Outside
Bearing race
34.5 (1.358)
48.5 (1.909)
D03628
D03929
D03820
D03574
D03573
–
AUTOMATIC TRANSAXLE
COMPONENT PARTS
AX–45
U140F AX (RM848E)
(b)
Coat the thrust bearing and race with petroleum jelly and
install them onto the multiple disc clutch hub.
Thrust bearing and race diameter: mm (in.)
Inside
Outside
Bearing
36.3 (1.429)
52.2 (2.055)
(c)
Install the bearing to the multiple clutch hub.
Bearing diameter: mm (in.)
Inside
Outside
Bearing
23.5 (0.925)
44.0 (1.732)
(d)
Install the forward clutch hub to the transaxle case.
(e)
Install the thrust bearing to the forward clutch.
Bearing diameter: mm (in.)
Inside
Outside
Bearing
33.85 (1.3327)
52.2 (2.055)
NOTICE:
Install the thrust bearing properly so that the black race will
be visible.
(f)
Install the forward clutch to the multiple clutch hub.
NOTICE:
Align the splines of all discs in the forward clutch with
those of multiple clutch hub to assemble them securely.
26.
INSTALL 2 NEW APPLY GASKET
D03572
D03571
D03569
AX–46
–
AUTOMATIC TRANSAXLE
COMPONENT PARTS
U140F AX (RM848E)
27.
INSTALL DIFFERENTIAL ASSEMBLY
28.
INSTALL TRANSAXLE HOUSING
(a)
Calculate the end play value using the following formula
and values of Dimension D and E that were measured
when installing cylindrical roller bearing and U/D plane-
tary gear. Select an appropriate U/D planetary gear thrust
bearing race No.2 which satisfies the specified end play
value, and install it.
End play: 0.50 – 0.99 mm (0.0197 – 0.0390 in.)
HINT:
End play = Dimension E – Dimension D – thrust bearing thick-
ness 3.28 mm (0.1291 in.) – U/D gear thrust bearing race No.2
thickness
Race thickness: mm (in.)
E – D
Thickness
Less than 7.64 (0.3008)
3.5 (0.138)
7.64 (0.3008) or more
3.8 (0.150)
Bearing and bearing race diameter: mm (in.)
Inside
Outside
Bearing
57.2 (2.252)
84.96 (3.3449)
Bearing race
56.4 (2.220)
83.0 (3.268)
(b)
Install the oil pump and 7 bolts to the transaxle case
Torque: 22 N·m (226 kgf·cm, 16 ft·lbf)
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