Disassembly

DISASSEMBLY





1. Drain ATF through drain plug.





2. Remove torque converter.





3. Check torque converter one-way clutch using check tool as shown at left.
a. Insert check tool into the groove of bearing support built into one-way clutch outer race.
b. While fixing bearing support with check tool, rotate one-way clutch spline using flat-bladed screwdriver.
c. Check inner race rotates clockwise only. If not, replace torque converter assembly.





4. Remove oil charging pipe and oil cooler tube.





5. Set manual shaft to T" position.
6. Remove PNP switch.





7. Remove oil pan and oil pan gasket.
- Do not reuse oil pan bolts.
8. Check foreign materials in oil pan to help determine cause of malfunction. If the fluid is very dark, smells burned, or contains foreign particles, the frictional material (clutches, band) may need replacement. A tacky film that will not wipe clean indicates varnish build up. Varnish can cause valves, servo, and clutches to stick and may inhibit pump pressure.
- If frictional material is detected, replace radiator after repair of A/T.
9. Remove control valve assembly according to the following procedures.





a. Remove control valve assembly mounting bolts A, B and C.





b. Remove stopper ring from terminal body.
c. Push terminal body into transmission case and draw out solenoid harness.





10. Remove manual valve from control valve assembly as a precaution.





11. Remove return spring from servo release accumulator piston.





12. Remove servo release accumulator piston with compressed air.
13. Remove O-rings from servo release accumulator piston.





14. Remove N-D accumulator piston and return spring with compressed air.
15. Remove O-rings from N-D accumulator piston.





16. Check accumulator pistons and contact surface of transmission case for damage.
17. Check accumulator return springs for damage and free length. Return springs:
Refer to "RETURN SPRING", under Specifications; Mechanical.





18. Remove lip seals from band servo oil port.
19. Remove converter housing according to the following procedures.





a. Remove converter housing mounting bolts A and B.





b. Remove converter housing.





c. Remove O-ring from differential oil port.





20. Remove final drive assembly from transmission case.





21. Remove differential side bearing outer race from transmission case using Tool.





22. Remove differential side bearing adjusting shim from transmission case.





23. Remove differential side bearing outer race from converter housing using Tool.





24. Remove oil seal from converter housing using a screwdriver.
- Be careful not to damage case.





25. Remove side oil sea[ from transmission case using a screwdriver.





26. Remove oil tube from converter housing.
27. Remove oil pump according to the following procedures.





a. Remove O-ring from input shaft.





b. Remove oil pump assembly from transmission case.





c. Remove thrust washer and bearing race from oil pump assembly.
28. Remove brake band according to the following procedures.





a. Loosen lock nut, then back off anchor end pin.
- Do not reuse anchor end pin.





b. Remove brake band from transmission case.





- To prevent brake linings from cracking or peeling, do not stretch the flexible band unnecessarily. When removing the brake band, always secure it with a clip as shown in the figure at left. Leave the clip in position after removing the brake band.





c. Check brake band facing for damage, cracks, wear or burns.
29. Remove input shaft assembly (high clutch) and reverse clutch according to the following procedures.





a. Remove input shaft assembly (high clutch) with reverse clutch.





b. Remove input shaft assembly (high clutch) from reverse clutch.





c. Remove needle bearing from high clutch drum.
d. Check input shaft assembly and needle bearing for damage or wear.





30. Remove high clutch hub and needle bearing from transmission case.
31. Check high clutch hub and needle bearing for damage or wear.





32. Remove front sun gear and needle bearings from transmission case.
33. Check front sun gear and needle bearings for damage or wear.
34. Remove front planetary carrier assembly and low one-way clutch according to the following procedures.





a. Remove snap ring using a screwdriver.





b. Remove front planetary carrier with low one-way clutch.





c. Check that low one-way clutch rotates in the direction of the arrow and locks in the opposite direction.
d. Remove low one-way clutch from front planetary carrier by rotating it in the direction of unlock.





e. Remove needle bearing from front planetary carrier.





f. Check front planetary carrier, low one-way clutch and needle bearing for damage or wear.
g. Check clearance between pinion washer and planetary carrier using feeler gauge.
Standard clearance: 0.15 - 0.70 mm (0.0059 - 0.0276 inch)
Allowable limit: 0.80 mm (0.0315 inch)
Replace front planetary carrier if the clearance exceeds allowable limit.
35. Remove rear planetary carrier assembly and rear sun gear according to the following procedures.





a. Remove rear planetary carrier assembly from transmission case.





b. Remove rear sun gear from rear planetary carrier.





c. Remove needle bearings from rear planetary carrier assembly.





d. Check rear planetary carrier, rear sun gear and needle bearings for damage or wear.
e. Check clearance between pinion washer and rear planetary carrier using feeler gauge.
Standard clearance: 0.15 - 0.70 mm (0.0059 - 0.0276 inch)
Allowable limit: 0.80 mm (0.0315 inch)
Replace rear planetary carrier if the clearance exceeds allowable limit.





36. Remove rear internal gear from transmission case.





37. Remove needle bearing from rear internal gear.
- Check needle bearing for damage or wear.





38. Remove forward clutch assembly from transmission case.





39. Remove thrust washer from transmission case.
40. Remove output shaft assembly according to the following procedures.





a. Remove side cover bolts.





b. Remove side cover by lightly tapping it with a soft hammer.
- Be careful not to drop output shaft assembly. It might come out when removing side cover.





c. Remove adjusting shim.





d. Remove output shaft assembly.





- If output shaft assembly came off with side cover, tap cover with a soft hammer to separate.





e. Remove needle bearing.
41. Disassemble reduction pinion gear according to the following procedures.
a. Set manual shaft to position "P" to fix idler gear.





b. Unlock idler gear lock nut using a pin punch.





c. Remove idler gear lock nut.
- Do not reuse idler gear lock nut.





d. Remove idler gear with puller using Tool.





e. Remove reduction pinion gear.
f. Remove adjusting shim from reduction pinion gear.





42. Remove return spring from parking shaft using a screwdriver.





43. Draw out parking shaft and remove parking pawl from transmission case.
44. Check parking pawl and shaft for damage or wear.





45. Remove parking actuator support from transmission case.
- Check parking actuator support for damage or wear.





46. Remove revolution sensor from transmission case.