E 350 Van V8-7.3L DSL Turbo VIN F (1995)
Band Apply Servo: Service and Repair
In-Vehicle Repairs
Low-Reverse Servo
WARNING: Low-reverse servo piston is under spring pressure. Use caution when removing servo piston cover.
REMOVAL & INSTALLATION
1. Remove valve body.
2. Compress low-reverse servo piston cover with a suitable tool, then remove snap ring retainer.
3. Using servo piston removal tool T80L-77030-B, or equivalent, apply compressed air to servo piston release passage and remove servo piston
cover and spring. Remove piston from cover, then rubber seal from piston and cover.
4. Install new seals on servo piston and cover.
5. Lubricate all seals, piston and piston bore with transmission fluid.
6. Install servo piston into cover, then return spring into servo piston.
7. Install piston assembly into servo bore.
8. Compress piston using suitable tool, then install snap ring retainer.
9. Install valve body, filter, pan and gasket. Refill transmission to proper fluid level.
Overdrive Servo Assembly
REMOVAL & INSTALLATION
1. Remove valve body as previously described.
2. Compress overdrive servo piston cover with a suitable tool, then remove snap ring retainer.
3. Using servo piston removal tool No. T80L-77030-B or equivalent, apply compressed air to servo piston release passage and remove the overdrive
servo piston cover and spring. Remove piston from cover, then the rubber seal from piston and cover.
4. Install new servo piston and cover seals on the servo piston and cover.
5. Lubricate all seals, piston and piston bore with transmission fluid.
6. Install servo piston into cover, then the return spring into servo piston.
7. Install overdrive piston assembly into overdrive servo bore.
8. Compress overdrive piston using suitable tool, then install snap ring retainer.
9. Install valve body, filter, pan and gasket. Refill transmission to proper fluid level.
