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Installing YT-2300R with bracket
YT-2300R is supplied with standard bracket. The bracket is consists of 2 part and can
be used with Fork lever and Namur shaft. The bracket is assembled in the factory as
based on 20mm of actuator stem height. But if actuator stem height is higher than that
like 30mm, 50mm, reassemble the bracket adjusting to the height. Referring to the
following table, check the hole positions.
YT-2300R
Upper bracket A
Bottom bracket B
Actuator
Bracket assembly method by actuator stem height H
Actuator stem
height (H)
Markings of bolt holes
A-L
B-L
A-R
B-R
20mm
H : 20
H : 20, 30
H : 20
H : 20, 30
30mm
H : 30
H : 20, 30
H : 30
H : 20, 30
50mm
H : 50
H : 50
H : 50
H : 50
Ex) In case that H is 30mm, A-L should be locked in H:30 hole and B-L in H:20,30, A-R
in H:30, B-R in H:20,30 with bolts.
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1. Usual types of actuator stem height (H) are 20, 30 and 50mm. After checking H,
assemble brackets as explained on the previous page. The bracket is set as 20mm type
in the factory.
Actuator stem
Actuator
Actuator stem height (H=20mm)
2. Attach bracket to the actuator using hexagon head bolts or wrench bolts. Diameter of
bracket bolt holes is 6mm. Use spring washers or any other equipment so as the bolts
not to be loosened by vibration or impact. The direction of bracket is different by
operating conditions, but normal direction is as following picture. That is, when the piping
of actuator and YT-2300R is direction A, bracket hole and indicator attached on the
bottom of YT-2300R main shaft should be same direction as being half circle.
Direction A
Attachment direction of bracket and actuator
3. Set rotation position of actuator stem as initial zero point which is stroke 0%. In case
of spring return type single actuator, since the actuator stem is always rotated at zero
point without supply pressure, it is easy to check zero point. If the actuator is double
acting, check that whether it is clockwise or counter clockwise or the rotation direction of
actuator stem with using supply pressure.
4. Set actuator stem as initial zero point and install fork lever as the following picture.
Ensure the position of initial zero point when actuator stem is clockwise or counter
clockwise. Installation angle of fork lever should be about 45 degree based on the linear
shaft. But the angle is not related to Namur shaft.
