Control Valve Assembly (Part 1)

Control Valve Assembly:

COMPONENTS

DISASSEMBLY

Bolt Length, Number And Location:

Disassemble tipper, inter and lower bodies.




a. Remove bolts (a), (d) and nut (f) and remove oil strainer from control valve assembly.




b. Remove solenoid valve assembly and line pressure solenoid valve from control valve assembly.




c. Remove O-rings from solenoid valves and terminal body.




d. Place upper body facedown, and remove bolts (b), (c) and nut (f).




e. Remove inter body from lower body.




f. Turn over lower body, and remove accumulator support plate.




g. Remove bolts (e), separating plate and separating gasket from lower body.
h. Remove steel balls and relief valve springs from lower body.
- Be careful not to lose steel balls and relief valve springs.




i. Remove inter body from upper body.




j. Check to see that steel balls are properly positioned in inter body and then remove them from inter body.
- Be careful not to lose steel balls.




k. Check to see that steel balls are properly positioned in upper body and then remove them from upper body.
- Be careful not to lose steel balls.

INSPECTION
Lower and upper bodies




- Check to see that retainer plates are properly positioned in lower body.




- Check to see that retainer plates are properly positioned in upper body.
- Be careful not to lose these parts.

Oil strainer
- Check wire netting of oil strainer for damage.

Shift solenoid valves A and B, line pressure solenoid valve, torque converter clutch solenoid valve and overrun clutch solenoid valve.




- Measure resistance.

Solenoids:

- Check resistance between two terminals.


Oil cooler relief valve spring.




- Check springs for damage or deformation.

Inspection Standard:

- Measure free length and outer diameter


ASSEMBLY
1. Install upper, inter and lower body.




a. Place oil circuit of upper body face up. Install steel balls in their proper positions.




b. Install upper separating gasket, upper inter separating gasket and upper separating plate in order shown in illustration.




c. Install reamer bolts (f) from bottom of upper body and install separating gaskets and separating plate as a set on upper body using reamer bolts as guides.




d. Install pilot filter.




e. Place lower body as shown in illustration (side of inter body face up). Install steel balls in their proper positions.




f. Install inter body on upper body using reamer bolts (f) as guides.
- Be careful not to dislocate or drop steel balls.




g. Install steel balls and relief valve springs in their proper positions in lower body.




h. Install lower separating gasket, inter separating gasket and lower separating plate in order shown in illustration.




i. Install bolts (e) from bottom of lower body and install separating gaskets and separating plate as a set on lower body using bolts (e) as guides.
j. Temporarily install support plates on lower body.




k. Install lower body on inter body using reamer bolts (f) as guides and tighten reamer bolts (f) slightly.




2. Install O-rings to solenoid valves and terminal body.
- Apply A.T.F. to O-rings.

Bolt Length, Number And Location:

3. Install and tighten bolts.




a. Install and tighten bolts (b) to specified torque.




b. Install solenoid valve assembly and line pressure solenoid valve to lower body.




c. Set oil strainer, then tighten bolts (a), (c), (d) and nuts (f) to specified torque.




d. Tighten bolts (e) to specified torque.