MAIN CONTROL VALVE BODY REMOVAL/INSTALLATION

Removal

1. Remove the manual valve.

2. Remove the two solenoid valve body bolts and the solenoid valve body.

Caution

• Do not attempt to remove the solenoid valve body wiring cover.

3. Remove and discard the solenoid valve body gasket.

4. Remove the three pressure tap plate bolts and the pressure tap plate.

5. Remove and discard the pressure plate tap gasket.

6. Remove the control valve body to transfer plate bolts, and remove the manual valve detent spring component.

7. Remove the accumulator body-to-transfer plate bolts.

8. Separate the accumulator body from the main control valve body.

(1) Remove the accumulator body component.

(2) Remove and discard the accumulator body separator gasket.

(3) Remove the accumulator body separator plate.

(4) Remove and discard the accumulator body separator gasket.

(5) Remove the main control valve body.

9. Separate the transfer plate from the main control valve body.

(1) Remove the main control valve body.

(2) Remove and discard the valve body separator plate gasket.

(3) Remove the valve body separator plate.

(4) Remove and discard the valve body separator plate gasket.

(5) Remove the transfer plate.

10. Remove the intermediate and overdrive accumulator valve plug retaining plate from the accumulator body component.

11. Remove the intermediate and overdrive accumulator valve plug.

12. Remove and discard the intermediate and overdrive accumulator plug seal.

13. As necessary, disassemble the parts of the accumulator body and main control valve body components.

Caution

• Remove, note location and clean one valve at a time to avoid incorrect installation.

• Lubricate and reassemble the parts as soon as possible to avoid accidental damage or incorrect installation.

Installation

1. Install a new intermediate and overdrive accumulator plug seal and coat with petroleum jelly.

Warning

• Air pressure must not exceed 138 kPa {1.4 kgf/cm², 20 psi}. Wear safety glasses when using compressed air. Failure to follow these instructions can result in personal injury.

Caution

• If the valve sticks in its bore and cannot be freed, install a new main control valve body.

Note

• Clean the main control valve body and accumulator body component of the main control in cleaning solvent. Blow dry with moisture-free regulated compressed air.

• The solenoid valve body should not be cleaned in cleaning solvent. It may be blown clean with compressed air or wiped clean with a lint-free cloth.

2. Install the intermediate and overdrive accumulator valve plug.

Caution

• Do not install the intermediate and overdrive accumulator valve plug and seal too far into the bore. This might damage the seal. Only push the intermediate and overdrive accumulator valve plug until it is flush with the accumulator body component.

3. Install the intermediate and overdrive accumulator valve plug retaining plate.

4. Install the SST.

5. Using the SST, install the valve body separator plate gaskets and valve body separator plate.

(1) Install a new valve body separator plate gasket.

(2) Install the valve body separator plate.

(3) Install a new valve body separator plate gasket.

6. Using the SST, install the main control valve body.

7. Using the SST, install the accumulator body separator plate and gaskets.

(1) Install a new accumulator body separator plate gasket.

(2) Install the accumulator body separator plate.

(3) Install a new accumulator body separator plate gasket.

8. Using the SST, install the accumulator body component.

9. Starting with the bolts in the middle and working outward, install the accumulator body transfer plate.

10. Starting with the bolts in the middle and working outward, install the main control valve body to transfer plate.

(1) Install the manual valve detent spring.

(2) Install the control valve body to transfer plate bolts.

11. Install a new pressure tap plate gasket.

12. Install the pressure tap plate and bolts.

13. Install the solenoid valve body.

Note

• Match the solenoid valve body gasket to passages.

(1) Install the solenoid valve body gasket.

(2) Install the solenoid valve body.

(3) Install the two solenoid valve body bolts.

• Remove the SST.

14. Install the manual valve.