clock TOYOTA CAMRY V20 1986 Service Information

NOMENCLATURE
OPERATION
Forward Clutch
C
1Connects input shaft and front planetary ring gear
Direct Clutch
C
2Connects input shaft and front & rear planetary sun gear
2nd Coast Brake
B
1Prevents front & rear planetary sun gear from turning either clockwise or counterclockwise
2nd Brake
B
2Prevents outer race of F1 from turning either clockwise or counterclockwise, thus preventing front &
rear planetary sun gear from turning counterclockwise
1st & Reverse Brake
B
3Prevents rear planetary carrier from turning either clockwise or counterclockwise
No. 1 One-Way Clutch
F
1When B2 is operating, prevents front & rear planetary sun gear from turning counterclockwise
No. 2 One-Way Clutch
F
2Prevents rear planetary carrier from turning counterclockwise
O/D Direct Clutch
C
0Connects overdrive sun gear and overdrive-planetary carrier
O/D Brake
B
0Prevents overdrive sun gear from turning either clockwise or counterclockwise
O/D One-Way Clutch
B
0When transmission is being driven by engine, connects overdrive sun gear and overdrive carrier
Planetary GearsThese gears change the route through which driving force is transmitted in accordance with the
operation of each clutch and brake in order to increase or reduce the input and output speed
AT3207
Rear Planetary CarrierFront Planetary Ring Gear OUT O/D Planetary Sun GearINInput Shaft Shaft O/D Planetary CarrierIntermediateFront Planetary Carrier Rear Planetary
Ring Gear O/D Planetary Ring Gear
and Counter Drive Gear
FUNCTION OF COMPONENTS
Front and Rear Planetary Sun Gear
AT-6- AUTOMATIC TRANSAXLEOperation

AT3747
Snap RingBearingBearingSnap RingNo. 1 One-Way Clutch Ring Gear FlangeRing GearPlanetary GearSun GearSun Gear
Input DrumThrust WasherThrust Washer
(A540E only)
AT0185
Turn Free HoldLock
AT0186
Front Planetary Gear
COMPONENTS
DISASSEMBLY OF NO. 1 ONE-WAY CLUTCH
AND SUN GEAR
1. CHECK OPERATION OF NO. 1 ONE-WAY CLUTCH
Hold the sun gear and turn the hub. The hub should
turn freely clockwise and should lock counterclockwise.
2. REMOVE NO. 1 ONE-WAY CLUTCH FROM SUN
GEAR
While turning the hub clockwise, remove the No. 1
one-way clutch from the sun gear.
- AUTOMATIC TRANSAXLEComponent Parts (Front Planetary Gear)AT-57

AT0185
Turn HoldFree Lock
AT2741
AT7715
AT7714 AT7714
3. INSTALL NO. 1 ONE-WAY CLUTCH ON SUN GEAR
While turning the hub clockwise, slide the No. 1 one-
way clutch onto the sun gear.
4. RECHECK OPERATION OF NO. 1 ONE-WAY CLUTCH
INSPECTION OF PLANETARY RING GEAR
1. INSPECT RING GEAR FLANGE BUSHING
Using a dial indicator, measure the inside diameter of
the flange bushing.
Maximum inside diameter: 30.08 mm (1.1842 in.)
If the inside diameter is greater than the maximum, re-
place the flange.
2. REMOVE RING GEAR FLANGE
(a) Using a screwdriver, remove the snap ring.
(b) Remove the flange from the ring gear.
3. INSTALL RING GEAR FLANGE
(a) Position the flange into the ring gear.
(b) Using a screwdriver, install the snap ring.
- AUTOMATIC TRANSAXLEComponent Parts (Front Planetary Gear)AT-59

AT0191
Turn HoldFreeLock
AT0323AT4474
Snap RingRetainerRetainerSnap RingThrust WasherBearingFlange No. 2 One-Way
ClutchOuter RaceThrust Washer
(A540H Only)Gear Rear PlanetaryRing GearSnap Ring
Rear Planetary Gear
COMPONENTS
DISASSEMBLY OF NO. 2 ONE-WAY CLUTCH
1. CHECK OPERATION OF NO. 2 ONE-WAY CLUTCH
Hold the outer race and turn the rear planetary gear.
The rear planetary gear should turn freely counter-
clockwise and should lock clockwise.
2. SEPARATE NO. 2 ONE-WAY CLUTCH AND REAR
PLANETARY GEAR
3. REMOVE THRUST WASHERS
(A540E)
Remove the thrust washer from the rear side of plane-
tary gear.
(A540H)
Remove the two thrust washers from both sides of
planetary gear.
- AUTOMATIC TRANSAXLEComponent Parts (Rear Planetary Gear)AT-63

AT3634
SST
AT3645
HoldLockFreeTurn
AT3646
AT3751AT7721
6. INSTALL DIRECT CLUTCH ON CASE
7. RECHECK PISTON STROKE OF DIRECT CLUTCH
Using a dial indicator, measure the piston stroke while
applying and releasing the compressed air (4 - 8 kg/
cm
2, 57 - 114 psi or 392 - 785 kPa) as shown.
Piston stroke: 1.75 - 2.49 mm
(0.0689 - 0.0980 in.)
SST 09350-32014 (09351-32190)
DISASSEMBLY OF COUNTER DRIVE GEAR
1. CHECK OPERATION OF ONE-WAY CLUTCH
(a) Install the overdrive direct clutch into the one-way
clutch.
(b) Hold the overdrive direct clutch and turn the inter-
mediate shaft. The shaft should turn freely clock-
wise and should lock counterclockwise.
(c) Remove the overdrive direct clutch.
2. CHECK COUNTER DRIVE GEAR PRELOAD
(a) Hold the overdrive planetary gear in a vise with
soft jaws.
HINT: Do not let the counter drive gear touch the vise.
(b) Using a tension gauge, measure the preload.
Preload (at starting): 940 - 1,560 g
(2.1 - 3.4 lb, 9.2 - 15.3 N)
HINT: Turn the counter drive gear right and left several
times before measuring the preload.
- AUTOMATIC TRANSAXLEComponent Parts (Overdrive Unit)AT-73

AT3645HoldLockFreeTurn
AT0426
AT3649
AT3748
AT3647
11. INSTALL OVERDRIVE ONE-WAY CLUTCH AND
RETAINING PLATE
(a) Install the one-way clutch into the outer race.
(b) Install the two retainer on both sides of the one-
way clutch.
(c) Install the one-way clutch into the overdrive plane-
tary gear.
HINT: Be sure that the one-way clutch is installed in the
correct direction.
(d) Install the retaining plate.
(e) Install the snap ring.
12. CHECK OPERATION OF O/D ONE-WAY CLUTCH
(a) Install the overdrive direct clutch into the one-
way clutch.
(b) Hold the overdrive direct clutch and turn the in-
termediate shaft. The shaft should turn freely
clockwise and should lock counterclockwise.
(c) Remove the overdrive direct clutch.
AT-80- AUTOMATIC TRANSAXLEComponent Parts (Overdrive Unit)

AT1905
AT2823
AT7730
AT3673 AT3672
FlangeDisc Plate
2. INSTALL FLANGE, DISCS AND PLATES
(a) Install the flange, discs and plates.
Install in order: P = Plate D = Disc
Flange-D-P-D-P-D-P
(b) Install the cushion plate with the rounded end
facing upward.
3. POSITION PISTON RETURN SPRING
4. INSTALL SNAP RING INTO CASE
Be sure the end gap of the snap ring is not aligned with
one of cutouts.
5. INSTALL OVERDRIVE PLANETARY GEAR ONTO
OVERDRIVE DIRECT CLUTCH
While turning the overdrive planetary gear clockwise,
install it onto the overdrive direct clutch.
- AUTOMATIC TRANSAXLEComponent Parts (Overdrive Unit)AT-83

AT3989
AT3697
Shim Outer Race A540E
AT3585
A540E
AT3588
(c) Turn the gear counterclockwise and clockwise sev-
eral times.
(d) Using a torque meter, measure the preload of the
drive pinion.
Drive pinion preload (at starting):
New bearing
10 - 16 kg-cm
(8.7 - 13.9 in.-lb, 1.0 - 1.6 N-m)
Reused bearing
5 - 8 kg-cm
(4.3 - 6.9 in.-lb, 0.5 - 0.8 N-m)
If the preload is greater than specified,
replace the bearing spacer.
If the preload is less than specified, retigh-
ten the nut 130 kg-cm (9 ft-lb, 13 N-m) at
a time until the specified preload is
reached.
If the maximum torque is exceeded while retightening the
nut, replace the bearing spacer and repeat the preload
procedure.
Do not back off the nut to reduce the preload.
Maximum torque: 3,600 kg-cm (260 ft-lb, 353 N-m)
(e) If the preload is adjusted within specification, make
a note of it.
(f) Stake the lock nut.
8. (A540E)
PLACE OUTER RACE AND SHIM ONTO RH SIDE
BEARING
9. PLACE DIFFERENTIAL CASE INTO TRANSAXLE
CASE
(A540E)
Be sure to install the shim and outer race into place.
AT-124- AUTOMATIC TRANSAXLEInstallation of Component Parts

AT3602
AT3720
AT3721
SST
AT5022
Thrust
Washer
AT3563
12. CHECK FIRST AND REVERSE BRAKE
(a) Check the operation of the first and reverse brake
piston.
Apply compressed air into the case passage and confirm
that the piston moves.
(b) Using a filler gauge, check the pack clearance of
the first and reverse brake.
Clearance: A540E
0.85 - 2.05 mm (0.033 - 0.081 in.)
A540H
1.04 - 2.16 mm (0.041 - 0.085 in.)
13. INSTALL NO. 2 ONE-WAY CLUTCH INTO CASE
(a) Place the No. 2 one-way clutch with the shiny
side of flange upward.
(b) Install the one-way clutch while turning the plane-
tary gear clockwise with SST.
SST 09350-32014 (09351-32050)
If can not turn the planetary gear clockwise, check the
installation of the one-way clutch.
(c) Install the snap ring.
HINT: Be sure that the end gap of the snap ring is not
aligned with one of cutouts.
(d) (A540H only)
Coat the thrust washer with petroleum jelly and
install it onto the rear planetary gear.
AT-134- AUTOMATIC TRANSAXLEInstallation of Component Parts

AT3728
AT3730
Outer Diameter Inner Diameter
A540E
Bearing45.5 (1.791)30.1 (1.185)
A540HBearing45.0 (1.772)30.0 (1.181)
Race45.0 (1.772)28.0 (1.102)
AT5036
A540H A540EA540E A540H
AT3551
AT5026
Race
(A540H)
Outer Diameter
Inner Diameter
A540E
Bearing45.5 (1.791) 30.1 (1.185)
A540HFront Race37.9 (1.492)22.0 (0.866)
Bearing36.1 (1.421)22.2 (0.874)
Rear Race35.0 (1.378)19.0 (0.748)
and HINT: The bearings are the same on the
side (A540E).
(b) Install the planetary gear onto the sun gear. Bearing and race:
mm (in.)
Bearing and race:(b) While turning the sun gear clockwise, install it into
the No. 1 one-way clutch.
20. INSTALL OIL SEAL RING TO INTERMEDIATE SHAFT
HINT: After installing the oil seal ring, check that it
moves smoothly.
21. INSTALL FRONT PLANETARY GEAR
(a) Coat the races and bearings with petroleum jelly, and
install them onto the both sides of planetary gear.mm (in.)
22. INSTALL FRONT PLANETARY RING GEAR
(A540H)
Coat the race with petroleum jelly and install it onto the
tip of ring gear.
Race: Outer diameter 35.7 mm (1.406 in.)
Inner diameter 23.0 mm (0.906 in.)
- AUTOMATIC TRANSAXLEInstallation of Component PartsAT-137