42
EB 8384-5 EN
Attachment to the control valve – Mounting parts and accessories
action. For the fail-safe action "actuator stem
retracts" the connection on the top dia-
phragm case is used. The connection at the
side of the yoke must be fitted with a venting
plug (accessories).
Mounting the position sensor
1.
Place the lever (1) on the sensor in
mid-position and hold it in place. Un-
thread the nut (1.1) and remove the lever
together with the disk spring (1.2) from
the sensor shaft.
2.
Screw the position sensor (20) onto the
mounting plate (21).
3.
Depending on the actuator size and rat-
ed valve travel, determine which lever
and position of the follower pin (2) is to
be used from the travel table on
page 19. The positioner is delivered
with the
M
lever in pin position
35
on the
sensor. If necessary, remove the follower
pin (2) from its pin position and move it
to the hole for the recommended pin po-
sition and screw tight.
4.
Place the lever (1) and disk spring (1.2)
on the sensor shaft. Place the lever in
mid-position
and
hold it in place
. Screw
on the nut (1.1).
5.
Place follower clamp (3) on the actuator
stem, align it and screw tight so that the
mounting screw is located in the groove
of the actuator stem.
6.
Place the mounting plate together with
the sensor onto the actuator yoke so that
the follower pin (2) rests on the top of the
follower clamp (3). It must rest on it with
spring force. Fasten the mounting plate
(21) onto the actuator yoke using both
fixing screws.
7. Mount cover (11) on the other side.
Make sure that the vent plug is located at
the bottom when the control valve is in-
stalled to allow any condensed water
that collects to drain off.
Summary of Contents for FOUNDATION 3730-5
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