Pneumatic Positioner
YT-1200 series
Product Manual
Ver. 1.18
30
4.4.3
Rotary positioner Installation Steps
1)
Please check the actuator’s stem height and adjust the brackets by referring to the above bracket
figures.
2)
Attached the brackets onto the actuator. It is recommended to use spring washer so the bolts will
not be loosen from vibration.
3)
Set rotation position of the actuator stem at 0 %. For single acting actuator, it is easy to check 0 %
point by supplying no pressure to the actuator. For double acting actuator, check actuator stem’s
rotation direction – clockwise or counter-clockwise - by supplying pressure to the actuator.
4)
(Only Fork lever type) Install the fork lever after setting actuator’s stem at 0 %. Check the actuator
stem’s rotation direction – clockwise or counter-clockwise.
Installation angle of the fork lever should be 45˚ to the longitudinal direction of the actuator.
Fig. 4-15: Counter-clockwise and clockwise rotation.
