Smart Positioner
YT-1000 / 1050 series
Product Manual
Ver. 1.04
34
4. Connect an air-filter regulator to the actuator temporarily. Supply enough air pressure to
the actuator in order to position the valve stroke at 50% of the total stroke.
Fig. 4-4: Positioning the valve at 50% of the total stroke
5. Insert the connection bar between the feedback lever and lever spring. The connection
bar must be located upward from the spring lever as shown the below left figure. If it is
located downward from the spring lever as shown the below right figure, the connection
bar or the spring lever will be worn out quickly because of excessive strong tension.
Fig. 4-5: Proper way to insert connection bar between feedback lever and lever spring
