FORCE ADJUSTMENT INSTRUCTIONS LV
Force adjustment instructions
- The piston rod must always be pointing downwards when the force is adjusted.
- Ensure that the valve screw is directed away from you and others when you start the opening process.
- Open the valve by turning the screw very slowly and carefully anti-clockwise ¼ turn or until you can hear a weak hissing noise. Be prepared to turn the screw back slightly in the opposite direction when you hear the hissing.
- Do not use excessive force when closing as you may damage the valve.