Installation and Operating manual
Econ
®
Series 3300 Smart Valve Positioner www.eriks.com www.eriks.com
12
Correct way to connect feedback lever, connection pin, and lever spring
8. Check if feedback lever is parallel to the ground at 50% of the valve stroke. If it is not
parallel, adjust the bracket or feedback link bar to make parallel. Improper installation
may cause poor linearity and may create unnecessary hunting during the operation.
9. After installing the positioner, operate the valve from 0% to 100% stroke by using direct
air to the actuator (manual position). On both 0% and 100%, the feedback lever should
not touch the lever stopper, which is located on the back of the positioner. If the
feedback lever touches the stopper, the positioner should be installed further away from
the yoke.
Feedback lever should not touch lever stopper 0% ~ 100% valve stroke.
10. After the installation, tighten all of the bolts on the bracket, the feedback lever, and the
connection pin.
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