Samson Type 3766, Монтаж и эксплуатация

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1. Screw the clamp (1.2) to the actuator
stem. Make sure that the fastening
screw is located in the groove of the ac-
tuator stem.
2. Screw the associated lever D1 or D2
(for 700 cm 2 actuator) to the pick-up
lever of the positioner.
3. Fasten the distance plate (15) with the
seal pointing towards the actuator yoke.
4. Attach the positioner such that the lever
D1 or D2 slides centrically over the
pin (1.1) of the clamp (1.2). Screw the
positioner to the distance plate (15).
5. Mount the cover (16).
6. Check whether the correct range spring
has been installed as listed in Table 4.
Range spring 1 is installed by default. If
necessary, replace it with spring 2 in-
cluded in the accessories and fix it at
the outer slot.
240, 350, and 700 cm
2
actuators
7. Make sure that the tip of the gasket (16)
projecting from the side of the connec-
tion block (Fig. 3, middle) is positioned
to match the actuator symbol that corre-
sponds to the actuator’s fail-safe action
"Actuator stem extends" or "Actuator
stem retracts".
If this is not the case, remove the three
fixing screws and the cover. Reposition
the gasket (16) turned by 180°.
The old connection block version re-
quires the switch plate (13) to be turned
such that the corresponding actuator
symbol points to the marking.
8. Place the connection block with its seal-
ing rings on the positioner and the actu-
ator yoke and screw tight using the
fastening screw. Actuators with “Actua-
tor stem retracts” require the ready-
made signal pressure line to be in-
stalled.
120 cm
2
actuators
The signal pressure is transmitted to the dia-
phragm chamber over the switchover plate
(Figs. 3 and 4, bottom).
7. Remove the screw in the rear cover of
the positioner (Fig. 5) and seal the lat-
eral signal pressure output “output”
with the plug contained in the acces-
sories kit.
8. Mount the positioner such that the bore
in the distance plate (15) mates with the
seal in the bore of the actuator yoke.
9. Align the switchover plate with the
corresponding symbol and fasten it to
the actuator yoke.
Important!
When a solenoid valve or a similar device
is attached to the 120 cm
2
actuator in addi-
tion to the positioner, do not remove the
rear M3 screw plug. In this case, the signal
pressure must be transmitted from the signal
pressure output to the actuator over an addi-
tional connecting plate (Table 2). The swit-
chover plate (Figs. 3 and 4) is not used.
Filling the actuator with air
If the spring chamber of the actuator must
be filled with the positioner’s exhaust air,
use a tube (Table 3) to connect the spring
chamber (with version “Actuator stem ex-
tends”) to the connection block. To do so,
12
EB 8355-1 EN
Direct attachment to Type 3277 Actuator