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D25F Troubleshooting - Part 3
Step 11: Pull the actuator assembly out and discard the old piston
shell.
Step 12: Put the new push rod o-ring (Part #: J020) on top of the
push rod and slide it down as far as it will go.
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Proper protection, such as gloves, eye wear, and aprons, are recommended when disassembling a Dosatron.
Step 10: Next, remove the four screws in the center of the piston
shell to release the actuator assembly.