Ytc YT-3300 Series, Руководство по эксплуатации продукта

Страница: 14 / 36

14
YT-3300/3301 series
3. Attach the positioner with bracket to the actuator yoke –
DO NOT TIGHTEN
POSITIONER COMPLETELY.
4. Connect positioner’s feedback lever to the actuator clamp. The hole gap on the
feedback lever is 6.5mm. The connection pin’s outer diameter should be less than
6.3mm.
5. Connect supply pressure to the actuator temporarily. Supply enough supply pressure to
the actuator in order to position the actuator clamp at 50% of the total valve stroke.
6. Insert connection pin into the feedback lever. The pin should be inserted when the
actuator clamp is at 50% of the total valve stroke.
Proper way to connect feedback lever, connection pin, and lever spring <YT-3300 and YT-3301 sensor>
7. Check if feedback lever is parallel to the ground at 50% of the valve stroke. If it is not
parallel, adjust the bracket or feedback link bar to make parallel. Improper installation
may cause poor linearity and may create unnecessary hunting during the operation.
8. Check the valve stroke. The stroke marks are indicated on the feedback lever of the
positioner. Position the connection pin at the number on the feedback lever which
corresponds to the desired valve stroke. To adjust, move the bracket, the connection
pin or both.
Proper way of Pin Insertion