Smart Positioner
YT-3100
Product Manual
Ver. 1.19
18
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. 3-4: Linear (Standard Lever Type)
5)
Insert the connection bar between the feedback lever and lever spring. The connection bar must
be located upward from the lever spring as shown below left figure. If it is located downward from
the lever spring as shown below right figure, the connection bar or the lever spring will be worn out
quickly because of excessive strong tension.
Fig. 3-5: Proper way to insert connection bar between feedback lever and lever spring