TOYOTA RAV4 2006 Service Repair Manual

U151F AUTOMATIC TRANSAXLE – AUTOMATIC TRANSAXLE UNITAX–243
AX
77. INSTALL PARK/NEUTRAL POSITION SWITCH
ASSEMBLY
(a) Install the switch to the manual valve shaft.
(b) Temporarily install the 2 bolts.
(c) Install a new lock washer and tighten the manual
valve shaft nut.
Torque: 5.4 N*m (55 kgf*cm, 48 in.*lbf)
(d) Temporarily install the control shaft lever.
(e) Turn the lever counterclockwise until it stops, and
then turn it clockwise 2 notches.
(f) Remove the control shaft lever.
(g) Align the groove and neutral basic line.
(h) Hold the switch in this position and tighten the 2
bolts.
Torque: 6.9 N*m (70 kgf*cm, 61 in.*lbf)
(i) Using a screwdriver, stake the nut with the lock
washer.
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AX–244U151F AUTOMATIC TRANSAXLE – AUTOMATIC TRANSAXLE UNIT
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(j) Install the control shaft lever with the washer and
nut.
Torque: 13 N*m (130 kgf*cm, 9 ft.*lbf)
78. INSTALL SPEEDOMETER DRIVEN HOLE COVER
SUB-ASSEMBLY
(a) Coat a new O-ring with ATF and install it to the
speedometer driven hole cover.
(b) Install the bolt and hole cover to the transaxle.
Torque: 6.9 N*m (70 kgf*cm, 61 in.*lbf)
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U151F AUTOMATIC TRANSAXLE – OIL PUMPAX–249
AX
REASSEMBLY
1. INSTALL FRONT OIL PUMP OIL SEAL
(a) Using SST and a hammer, tap in a new oil seal to
the oil pump body.
SST 09350-32014 (09351-32140)
HINT:
The seal end should be flat with the outer edge of
the oil pump.
(b) Coat the lip of the oil seal with MP grease.
2. INSTALL FRONT OIL PUMP BODY O-RING
(a) Coat a new O-ring with ATF, and install it to the oil
pump body.
NOTICE:
• Make sure that the O-ring is not twisted or
pinched.
• Apply enough ATF to the O-ring before
installation.
3. INSTALL FRONT OIL PUMP DRIVEN GEAR
(a) Coat the front oil pump driven gear with ATF, and
install it to the oil pump body with the marked side
facing upward.
4. INSTALL FRONT OIL PUMP DRIVE GEAR
(a) Coat the front oil pump drive gear with ATF, and
install it to the oil pump body with the marked side
facing upward.
5. INSTALL STATOR SHAFT ASSEMBLY
(a) Set the stator shaft and align it with each bolt hole.
(b) Using a T30 "torx" socket, install the 11 bolts.
Torque: 9.8 N*m (100 kgf*cm, 87 in.*lbf)
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AX–250U151F AUTOMATIC TRANSAXLE – OIL PUMP
AX
6. INSTALL CLUTCH DRUM OIL SEAL RING
(a) Coat 2 new oil seal rings with ATF.
(b) Install 2 new clutch drum oil seal rings.
NOTICE:
Do not expand the ring ends excessively.
7. INSPECT OIL PUMP ASSEMBLY (See page AX-247)
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U151F AUTOMATIC TRANSAXLE – SECOND BRAKE PISTONAX–253
AX
REASSEMBLY
1. INSTALL 2ND BRAKE PISTON O-RING
(a) Coat 2 new O-rings with ATF, and install them in the
2nd brake piston.
NOTICE:
Make sure that the O-ring is not twisted or
pinched.
2. INSTALL 2ND BRAKE PISTON
(a) Coat the 2nd brake piston with ATF, and install it to
the 2nd brake cylinder.
NOTICE:
Be careful not to damage the O-ring.
3. INSTALL 2ND BRAKE PISTON RETURN SPRING
SUB-ASSEMBLY
(a) Install the 2nd brake piston return spring.
NOTICE:
After installing the spring, check that all of the
springs fit in the piston correctly.
(b) Place SST on the piston return spring, and
compress the piston return spring with a press.
SST 09387-00060
(c) Using a screwdriver, install the snap ring.
(d) Be sure that the end gap of the snap ring is not
aligned with the spring retainer claw.
NOTICE:
Stop the press when the spring seat is lowered
to a position 1 to 2 mm (0.039 to 0.078 in.) from
the snap ring groove. This prevents the spring
seat from being deformed.
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AX–256U151F AUTOMATIC TRANSAXLE – FORWARD CLUTCH
AX
(d) Remove the forward clutch return spring from the
input shaft.
4. REMOVE FORWARD CLUTCH RETURN SPRING
SUB-ASSEMBLY
(a) Place the forward clutch drum onto the oil pump.
(b) Holding the forward clutch piston by hand, apply
compressed air (392 kPa, 4.0 kgf/cm
2, 57 psi) to the
oil pump to remove the forward clutch piston.
HINT:
When the piston cannot be removed because it is
slanted, blow air again with the protruding side
pushed, or remove the piston using needle nose
pliers with vinyl tape on the tip.
5. REMOVE INPUT SHAFT OIL SEAL RING
(a) Remove the input shaft oil seal ring from the input
shaft.
INSPECTION
1. INSPECT PACK CLEARANCE OF FORWARD
CLUTCH
(a) Install the forward clutch on the oil pump.
NOTICE:
Be careful not to damage the oil seal ring of the
oil pump.
(b) Using a dial indicator, measure the forward clutch
pack clearance while applying and releasing
compressed air (392 kPa, 4.0 kgf/cm
2, 57 psi).
Standard pack clearance:
1.00 to 1.25 mm (0.0394 to 0.4921 in.)
If the clearance is not as specified, inspect the
discs, plates and flange.
HINT:
If the opening is large, cover it with a piece of cloth
to prevent the compressed air from being released.
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U151F AUTOMATIC TRANSAXLE – FORWARD CLUTCHAX–257
AX
2. INSPECT FORWARD MULTIPLE DISC CLUTCH DISC
(a) Check if the sliding surface of the disc, plate and
flange are worn or burnt.
If necessary, replace them.
NOTICE:
• If the lining of the disc comes off or is
discolored, or if a part of the groove is worn,
replace all the discs.
• Before installing new discs, immerse them in
ATF for at least 15 minutes.
3. INSPECT FORWARD CLUTCH RETURN SPRING
SUB-ASSEMBLY
(a) Using a vernier caliper, measure the free length of
the spring together with the spring seat.
Standard free length:
26.74 mm (1.0528 in.)
4. INSPECT FORWARD MULTIPLE DISC CLUTCH DISC
(a) Check if the disc lightly rotates when rotating the
forward clutch after inserting the multiple disc clutch
into it.
NOTICE:
Do not place the forward clutch in a vise.
REASSEMBLY
1. INSTALL INPUT SHAFT OIL SEAL RING
(a) Compress a new input shaft oil seal ring from both
sides to reduce dimension A.
Dimension A:
5.0 mm (0.197 in.)
(b) Coat the oil seal ring with ATF and install it to the
forward clutch drum.
NOTICE:
Do not expand the end gap of the oil seal ring
too much. Fix the hooks firmly.
2. INSTALL FORWARD CLUTCH PISTON SUB-
ASSEMBLY
(a) Coat the forward clutch piston with ATF, and install it
to the forward clutch drum.
NOTICE:
Be careful not to damage the lip of the forward
clutch piston.
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AX–258U151F AUTOMATIC TRANSAXLE – FORWARD CLUTCH
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3. INSTALL FORWARD CLUTCH RETURN SPRING
SUB-ASSEMBLY
(a) Install the return spring to the forward clutch drum.
NOTICE:
After installing the spring, check that all of the
springs fit in the piston correctly.
(b) Coat the clutch balancer with ATF.
(c) Install the clutch balancer to the forward clutch
drum.
NOTICE:
• Be careful not to damage the lip of the
forward clutch balancer.
• Make sure that the clutch balancer is not
pinched and that there are no other defects
on the lip.
• Apply sufficient ATF to the sealing lip before
installation.
(d) Place SST on the clutch balancer, and compress
the clutch balancer with a press.
SST 09387-00020
(e) Install the snap ring with a snap ring expander.
(f) Be sure that the end gap of the snap ring is not
aligned with the spring retainer claw.
NOTICE:
• Stop the press when the spring seat is
lowered to a position 1 to 2 mm (0.039 to
0.078 in.) from the snap ring groove. This
prevents the spring seat from being
deformed.
• Do not expand the snap ring excessively.
(g) Set the end gap of the snap ring in the piston as
shown in the illustration.
NOTICE:
The end gap of the snap ring should not align
with any of the stoppers.
4. INSTALL FORWARD MULTIPLE DISC CLUTCH DISC
(a) Coat the 5 discs with ATF.
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U151F AUTOMATIC TRANSAXLE – FORWARD CLUTCHAX–259
AX
(b) Install the 5 plates, 5 discs and flange to the forward
clutch drum.
NOTICE:
Make sure that the plates, discs, and flange are
installed as shown in the illustration.
(c) Using a screwdriver, install the snap ring.
(d) Check that the end gap of the snap ring is not
aligned with one of the cutouts.
NOTICE:
The snap ring should be fully engaged in the
groove of the drum.
5. INSPECT PACK CLEARANCE OF FORWARD
CLUTCH
(a) Using a dial indicator, measure the forward clutch
pack clearance while applying and releasing
compressed air (392 kgf/cm
2, 4.0 kPa, 57 psi).
Pack clearance:
1.00 to 1.25 mm (0.0394 to 0.4921 in.)
If the piston stroke is less than the minimum, parts
may be assembled incorrectly. Check and
reassemble the parts again.
If the clearance is not as specified, select another
flange.
HINT:
There are 5 different thicknesses of flanges
available.
Standard flange thickness
6. INSPECT FORWARD MULTIPLE DISC CLUTCH DISC
(See page AX-257)
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No. Thickness No. Thickness
1 3.00 mm (0.1181
in.)4 3.45 mm (0.1358
in.)
2 3.15 mm (0.1240
in.)5 3.60 mm (0.1417
in.)
3 3.30 mm (0.1299
in.)--

AX–6U241E AUTOMATIC TRANSAXLE – AUTOMATIC TRANSAXLE SYSTEM
AX
SYSTEM DIAGRAM
The configuration of the electronic control system in the
U241E automatic transaxle is as shown in the following chart.
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