Smart Positioner
YT-2500 / 2550 / 2501 Series
Product manual
Ver. 1.04
25
3.4.4
Rotary positioner Installation Steps
1. Please check the actuator
’s stem height and adjust the brackets by referring to the
above bracket table.
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 of YT-2500 / 2550) 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. 3-16: Counter-clockwise and clockwise rotation.
5. (Only Fork lever type of YT-2500 / 2550) After setting fork lever position, fasten lock nuts
which are located on the bottom of the fork lever. Ensure to set the gap between the
bottom of upper bracket and the top of the fork lever within
6~11mm.
Fig. 3-17: Height to the bracket (fork lever type)
