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D25F Troubleshooting - Part 3
Step 8: Press the pushrod up.
Step 9: Slide the valve support off the inlet valve and set aside.
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Proper protection, such as gloves, eye wear, and aprons, are recommended when disassembling a Dosatron.
Step 7: To replace the piston shell, use a small tip Phillips
screwdriver and remove the valve support screw and plastic
retainer.