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5.3 Direct attachment to
Type 3277 and
Type 3277-5 Actuators
Î See Fig. 3.
Î Required mounting parts and accesso-
ries: section 3.3 on page 15.
1. Place follower clamp (4) on the actuator
stem, align it and screw tight so that the
fastening screw (3) is located in the
groove of the actuator stem.
2. Fasten the mounting plate (1) onto the
actuator yoke using both fastening
screws (2).
3. Check the pin position of the follower pin
(2) on the lever (1). Refer to travel tables
for type of attachment. If necessary,
change the pin position (see section 5.2).
4. Screw the stop screw into the enclosure
cover and unscrew the cover.
5. Place the limit switch onto the mounting
plate so that the follower pin rests on the
top of the follower clamp (4). The lever
must rest on the follower clamp with
spring force. Fasten the limit switch onto
the actuator yoke using the four fastening
screws (5).
6. Mount cover (6) on the other side. Make
sure that the vent plug faces downward
(in cases where this is not possible,
mount it in the horizontal position) when
the control valve is installed to allow any
condensed water that collects to drain
off.
EB 4747 EN
7. For Type 3277 Linear Actuators with "ac-
tuator stem retracts" fail-safe action,
screw a vent plug (7) into the connection
at the side of the yoke.
8. Mount the enclosure cover. Check the
O-ring for damage and replace it, if nec-
essary.
9. Lock the enclosure cover by unscrewing
the stop screw.
Mounting
23
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