Component Tests and General Diagnostics

SERVO TRAVEL CHECK

NOTE: Perform procedure only it one the following components is being replaced during assembly of the transaxle: transaxle case, band assembly, drum and sun gear assembly, servo piston rod, servo piston, and band anchor strut.

1. Clean and assemble servo piston.

NOTE: Do not install seals.

Installing Servo Remover/Installer Tool No. T81P-70027-A:

2. Install servo installer/remover tool No. T81P-70027-A or equivalent on piston rod and position piston in case.

Installing Selection Tool No. T81P-70023-A:

3. Install Selection Tool No. T81P-70023-A or equivalent and secure in case using servo cover snap ring. Torque gauge disc screw.

Mounting Dial Indicator:

4. Mount dial indicator and position stylus through hole in gauge disc. Ensure stylus has contacted servo piston, then zero indicator.
5. Back off gauge disc screw until piston movement stops, then read indicator. Amount of piston travel shown on indicator will determine rod length to be installed.

Servo Rod Selection Chart:

6. Select a new piston rod using chart in the Servo Rod Selection Chart. Install piston rod and repeat steps 1 through 5 to verify amount of piston travel.