Valve Body

DISASSEMBLY





1. Remove the solenoid valves and the oil temperature sensor brakes.

NOTE:
A4AF2, A4BF1 transaxles: 4 solenoid valves
A4AF3 transaxle: 6 solenoid valve





2. Remove the manual valve.





3. Remove the valve stopper and clamp.





4. Remove the bolts (16), and then remove the lower valve body.





5. Remove the separating plate.





6. Remove the relief spring, two steel balls and oil filter from the intermediate plate





7. Remove the bolts (6), and then remove the intermediate plate and upper separation plate.





8. Remove the block.





9. Remove the upper separating plate.





10. Remove, from the upper valve body, the steel balls, two stopper plates.





11. Remove, from the upper valve body, the seven bolts; then remove the front end cover and the adjustment screw.

Caution: When removing the bolts, be sure to firmly press the front end cover (as shown in the illustration) so as to prevent the spring from causing the adjustment screw to pop out.





12. Remove the pressure control spring B and the pressure control valve B.





13. Remove the torque converter control spring and the torque converter control valve.





14. Remove the regulator spring and the regulator valve.





15. Remove the shift-control spring and shift-control plug A.





16. Remove rear clutch exhaust valves A and B as well as the rear clutch exhaust spring.





17. Remove the 2-3/4-3 shift spring and the shift valve.





18. Remove, from the rear side of the upper valve body, the Pressure control sleeve A and the Pressure control valve A.





19. Remove the five bolts, and then remove the rear end cover.





20. Remove the 1-2 shift spring and the 1-2 shift valve.





21. Remove shift-control plug B.





22. Remove the shift-control valve and the high-low pressure valve.





23. Using a magnet, extract the pin from the lower valve body, and then remove the stopper.





24. Remove the end clutch valve plug, end clutch spring, and end clutch valve. Then remove the control switch valve.





25. Remove the six bolts from the lower valve body, and then remove the end cover, adjustment screw, and reducing spring.





26. Remove the reducing valve.





27. Remove the N-R control valve and the N-R control spring.





28. Remove the damper clutch control sleeve, damper clutch control valve, and the damper clutch control spring. And the remove the fail safe valve.

VALVE INSTALLATION POSITIONS





Upper Valve Body





Lower Valve Body

REASSEMBLY





1. Install in the lower valve body, the damper clutch control spring, damper clutch control valve, and the damper clutch control sleeve. And then install the fail safe valve.





2. Install the N-R control spring and the N-R control valve.





3. Install the reducing valve.





4. Install the reducing spring, adjustment screw, and end cover. Tighten the bolts to the specified torque.
Tightening torque: 4 - 6 Nm (40 - 60 kg.cm, 29 - 43 ft. lbs.)





5. Install the end clutch valve, end clutch spring, and end clutch plug. And then install the control switch valve.





6. Install the shift-control valve and the high-low pressure valve to the upper valve body.





7. Install the shift-control plug B.





8. Install the 1-2 shift valve and 1-2 shift spring.





9. Install the rear end cover.





10. Install the pressure control valve A and the pressure control sleeve A.





11. Install the 2-3/4-3 shift valve and the 2-3/4-3 shift spring.





12. Install the rear clutch exhaust spring and rear clutch exhaust valves A and B.





13. Install the shift-control plug A and shift control spring.





14. Install the regulator valve and regulator spring.





15. Install the torque converter control valve and torque converter control spring.





16. Install the pressure control valve and pressure control spring.





17. Install the adjustment screw and front end cover. Tighten the bolts to the specified torque.





18. Install, in the upper valve body, the three steel balls, the Teflon ball, two stopper plate and N-D plate.





19. Install the upper separating plate.





20. Install the block.





21. Install the special tool (09456-21000). Then, securing the upper separating plate and the intermediate plate with the eight installation bolts, remove the special tool.





22. Install to the intermediate plate, the oil filter, the two steel balls, and the spring.





23. Install the special tool (09456-21000) to the intermediate plate.





24. Install the separating plate.





25. After securing the lower valve body using the 15 installation bolts, remove the special tool.





26. Install the valve stopper and clamp.





27. Install the manual valve.





28. Secure the four solenoid valves using the installation bolts.