EB 8484-1 EN
5-27
Installation
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 amplifier on
the connection side of the positioner hous-
ing (see section 5.6.7).
6. Unscrew the standard follower pin (2)
from the positioner's
M
lever (1). Use the
metal follower pin (Ø 5 mm) included in
the mounting kit and screw tight into the
hole for pin position
90°
.
7. Place positioner on the top bracket (10)
and fasten tight. Taking the actuator's di-
rection of rotation into account, adjust le-
ver (1) so that it engages in the slot of the
coupling wheel (4) with its follower pin
(Fig. 5-23). It must be guaranteed that the
lever (1) is parallel to the long side of the
positioner when the actuator is at half its
angle of rotation.
1.2
1.1
1
2
4.1
4.2
5
3
Fig. 5-22:
Mounting the coupling wheel on
Type 3278
Legend for Fig. 5-22 and Fig. 5-23
1
Lever
1.1
Nut
1.2
Disk spring
2
Follower pin
3
Follower clamp
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 mounting kit
10
Top pair of brackets
10.1
Bottom pair of brackets
10
10.1
6
(7, 8)
1.1
2
4.3
5
6.1
4
1.2
1
130 mm
80 mm
Control valve opens counterclockwise
Control valve opens clockwise
Slot
Slot
Fig. 5-23:
Attachment to rotary actuators
Содержание TROVIS 3730-1
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