A/T Main Case (Part 2)
DISASSEMBLYINPUT CLUTCH PACK ASSEMBLY
1. Remove the front sun gear.
2. Remove the thrust bearing.
3. Remove the snap ring, and then remove the front carrier.
4. Remove the input clutch assembly from rear internal gear.
ASSEMBLY
INPUT CLUTCH PACK ASSEMBLY
1. Assemble the input clutch assembly to rear internal gear.
2. Install the front carrier, and then install the snap ring.
3. Install the thrust bearing.
4. Install the front sun gear.
INSPECTION
FRONT, MIDDLE & REAR PLANETARY CARRIER ASSEMBLY
Check the following items.
- Visually inspect the tooth surface of planetary gear, and replace with new part if damaged, broken or excessively worn.
- Inspect the planetary carrier body for damage or breakage.
INPUT CLUTCH
- Check the clearance of the input clutch. Measure the clearance "L" between snap ring and retaining plate using a thickness gauge. If it is out of specification, replace the entire direct clutch assembly.
- Check for damage on the drive plate, driven plate and snap ring, and replace the entire input clutch assembly if damaged.
Standard: 0.7 - 1.1 mm (0.028 - 0.043 in)
HIGH & LOW REVERSE CLUTCH ASSEMBLY
- Check the clearance of the high & low reverse clutch.
Measure the clearance "L" between snap ring and retaining plate using a thickness gauge. If it is out of specification, replace the entire high & low reverse clutch assembly.
- Check for damage on the drive plate, driven plate and snap ring, and replace the entire high & low reverse clutch assembly if damaged.
Standard: 1.8 - 2.2 mm (0.071 - 0.087 in)
DIRECT CLUTCH ASSEMBLY
- Check the clearance of direct clutch.
Measure the clearance "L" between snap ring and retaining plate using a thickness gauge. If it is out of specification, replace them as direct clutch assembly.
- Check for damage on the drive plate, driven plate and snap ring, and replace the entire direct clutch assembly if damaged.
Standard: 0.6 - 1.0 mm (0.024 - 0.039 in)
REVERSE BRAKE
Check the following items.
- Drive plate facing for wear or damage
- Snap ring for wear, return spring for breakage, and spring retainer for deformation
- Lip seal and D-ring for damage
- Piston operation
ADJUSTMENT
1. Using the ST, measure the height "A" from the AT main case mating surface to convex surface of oil pump cover.
ST 499575400 GAUGE
2. Using the ST, measure the depth "B" from the convex surface of oil pump cover to thrust bearing transferring surface.
ST 499575400 GAUGE
3. Calculate the measured value from step 1) and 2), and then set the calculated value as "C".
Calculation formula: C = A - B
4. Using the ST, measure the depth "D" from the AT main case mating surface to thrust bearing transferring surface of front sun gear.
ST 499575400 GAUGE
5. Set the value as - which subtract the thickness of ST (499575400 GAUGE.from the measured value on step 4).
Calculation: - (mm) = D - 15 - (in) = D - 0.59]
6. Calculation formula:
Select one thrust bearing from the table to adjust clearance within 0.25 - 0.55 mm (0.0098 0.0217 in).
When clearances are 0.25 mm (0.0098 in): To (mm) = - - C + 0.03
[To (in.= - - C + 0.0012]
When clearances are 0.55 mm (0.0217 in): To (mm) = - - C + 0.27
[To (in.= - - C + 0.0106]
To: Thrust bearing thickness
C: Distance from oil pump cover mating surface to rear end of oil pump cover
E: Depth from mating surface of AT main case to bearing surface of front sun gear
NOTE: Calculation formula for "To" above is applied when measuring with the ST (499575400 GAUGE). In the calculation without using ST, substitute the thickness of collar used to calculate the value - on step 5).
