Samson TROVIS 3730-1, Перевод оригинальной инструкции, Страница: 40 / 144

5-6 EB 8484-1 EN
Installation
5.6 Positioner attachment
5.6.1 Direct attachment
We recommend using a volume restriction
for a transit time <1 s (see section 5.5).
a) Type 3277-5 Actuator
Î
Actuator with 120 cm² (see Fig. 5-8)
Î
Required mounting parts and accesso -
ries: Table 5-5 on page 5-40.
Î
Observe travel tables on page 5-4.
Î
Depending on the fail-safe action of the
actuator "actuator stem extends" or "ac-
tuator stem retracts", mount the switcho-
ver plate (9) on the actuator yoke. Align
the symbol for attachment to the left or
right side with the marking (see Fig. 5-8,
top).
1. Mount connecting plate (6) or pressure
gauge bracket (7) with pressure gauges
on the positioner. Make sure that the two
seals (6.1) are seated properly.
2. Remove screw plug (4) on the back of
the positioner and seal the signal pres-
sure output (38) on the connecting plate
(6) or on the pressure gauge bracket (7)
with the stopper (5) included in the ac-
cessories.
3. 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.
4. Mount cover plate (10) with narrow side
of the cut-out (Fig. 5-8, on the left) point -
ing towards the signal pressure connec-
tion. Make sure that the gasket (14)
points towards the actuator yoke.
5. Check the pin position of the follower pin
(2) on M lever (1). Refer to travel tables
for type of attachment. If necessary,
change the pin position (see section 5.4).
6. Insert molded seal (15) into the groove of
the positioner housing and insert the seal
(10.1) on the back of the housing.
7. Place positioner on the cover plate (10)
in such a manner that the follower pin
(2) rests on the top of the follower clamp
(3). Adjust the lever (1) correspondingly
and open the positioner cover to hold the
positioner shaft in position at the shaft
lock (Fig. 5-5). The lever (1) must rest on
the follower clamp with spring force. Fas-
ten the positioner on the cover plate (10)
using the two fastening screws.
8. 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.
9 11
Supply 9 Output 38
5
6
4
7
6
10
10.1
3
2
1
15
6.1
1.1
1.2
14
8
Symbols
Actuator stem
extends
Actuator stem
retracts
Left attachment Right attachment
Switchover plate (9)
Marking
Signal pressure
input for left
attachment
Signal pressure
input for right
attachment
Cut-out of
cover plate
1 Lever
1.1 Nut
1.2 Disk spring
2 Follower pin
3 Follower clamp
4 Screw plug
5 Stopper
6 Connecting plate
6.1 Seals
7 Pressure gauge bracket
8 Pressure gauge
mounting kit
9 Switchover plate
(actuator)
10 Cover plate
10.1 Seal
11 Cover
14 Gasket
15 Molded seal
Fig. 5-8: Direct attachment – Signal pressure connection for Type 3277-5 Actuator with 120 cm²
Note