Maintenance Instructions
(ADT927)
Preparation for maintenance or repair service.
1. Open vent valve and isolation valve,(Counterclockwise) push the
liquid out of piston cavity by turning the pre-pressurization wheel
clockwise until it is completely in.
2. Drain the liquid media out of the pump.
3. Close the isolation valve by turning clockwise until closed.
4. Close vent valve by turning clockwise until closed.
High-pressure
pressurization handle
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