6
6. Insert connection bar into the YT-1000L feedback
lever. The connection bar should be inserted at the
50% point on the feedback lever, which would help to
reduce hysteresis.
(Figure 5)
7. If the connection bar does not point at the 50%
point, then adjust the bracket or feedback link bar
position. Failure to position at 50% would lower the
linearity of the positioner.
(Figure 6)
8. Check valve stroke. The stroke numbers are
indicated on the feedback lever. Position the
connection bar at the number on the feedback lever
according to the valve stroke. To adjust, move the
bracket or connection bar.
(Figure 7)
Stroke 70mm
NOTE: After installing the YT-1000L, operate the valve
from 0% to 100% stroke by using the air filter regulator
on the actuator. Both at 0% and 100%, the feedback
lever should not touch the lever stopper, which is
located on the backsideof the YT-1000L.
(Figure 8)
If the feedback lever touches the lever stopper,
YT-1000L should be installed further away from the
center of the yoke.
9. After the proper installation, tighten all the bolts on
the bracket, the feedback lever, and the connection
bar.
CVS Controls Ltd.
Product Manual: CVS Rack & Pinion Actuator
CVS Controls Ltd.
Process Management
And Instrumentation
YT-200
40
50
60
50%
20 30 40 50 60
40 50 60 70
20
30
70
Stroke 30mm
