EB 8387-5 EN
33
Mounting and start-up
fastening screws. Check whether the fol-
lower pin (2) rests on top of the follower
clamp (3). The lever (1) must rest on the
follower clamp with spring force.
During mounting, make sure that the seal
(10.1) is inserted in the borehole of the
cover plate.
10.
Mount cover (11) on the other side.
Make sure that the vent plug (11.1) is lo-
cated at the bottom when the control
valve is installed to allow any condensed
water that collects to drain off.
5.4 Type 3277 Actuator
Î
Required mounting parts and accesso-
ries: Table 2 on page 17.
Actuators with 175 to 750 cm² areas
Mount the positioner on the yoke as shown
in Fig. 6. The signal pressure is routed to the
actuator over the connection block (12), for
actuators with fail-safe action "actuator stem
extends" internally through a hole in the
valve yoke and for "actuator stem retracts"
through an external pipe.
1.
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.
2.
Mount cover plate (10) with narrow side
of the cut-out (Fig. 6, on the left) pointing
towards the signal pressure connection.
Make sure that the gasket (14) points to-
wards the actuator yoke.
3.
Actuators (355, 700 and 750 cm²):
Remove the follower pin (2) from the pin
position 35 on M lever (1), reposition it
2
17
10 14
15
1 2
3
11
SUPPLY
13
B
1.1
1.2
12
12.1
12
12.2
12.1
12
16
16
16
12.2
SUPPLY
SUPPL
Y
G
G 3/8
11.1
A
C
Actuator stem extends
View A
View B
View C
1
Lever
1.1
Nut
1.2
Disk spring
2
Follower pin
3
Follower clamp
10
Cover plate (G ¼)
11
Cover
11.1
Vent plug
12
Connection block
12.1
Screw
12.2
Stopper or connection for
external piping
13
Switch plate
14
Gasket
15
Formed seal
16
Gasket
17
Bias spring (only with direct
attachment)
Cut-out of
cover plate
Connection block (old)
with switch plate (13)
Actuator stem
extends
retracts
Actuator stem retracts
Fig. 6:
Direct attachment: signal pressure connection for Type 3277 Actuator (175 to 750 cm²)
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