Samson 3730 Series - Page 65

EB 8384-3 EN 5-27
Installation
2. Placecouplingwheel(4)withatside
facing the actuator on the follower clamp
(3). Align slot so that it matches the direc-
tion of rotation when the valve is in its
closed position (see Fig.5-20).
3. Fasten the coupling wheel (4) and follow-
er clamp (3) tightly onto the actuator shaft
using screw (4.1) and disk spring (4.2).
4. Fasten the bottom pair of brackets (10.1)
with the bends pointing either facing to
the inside or to the outside (depending on
the actuator size) onto the actuator hous-
ing. Position the top pair of brackets (10)
and fasten.
5. 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. Dou-
ble-acting springless rotary actuators re-
quiretheuseofareversingamplieron
1.2
1.1
1
2
4.1
4.2
5
3
Fig.5-19: Mounting the coupling wheel on
Type3278
10
10.1
6
(7, 8)
1.1
2
4.3
5
6.1
4
1.2
1
130 mm
80 mm
Legend for
Fig.5-19 and
Fig.5-20
1 Lever
1.1 Nut
1.2 Disk spring
2 Follower pin
3 Follower clamp
(Fig.5-19)
4 Coupling wheel
4.1 Screw
4.2 Disk spring
4.3 Scale plate
5 Actuator shaft
AdapterforType3278
6 Connecting plate
6.1 Seals
7 Pressure gauge bracket
8 Pressure gauge mount-
ing kit
10 Top pair of brackets
10.1 Bottom pair of brackets
Control valve opens counterclockwise
Control valve opens clockwise
Slot
Slot
Fig.5-20: Attachment to rotary actuators