Samson Type 3766, Монтаж и эксплуатация

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2.2.1 Mounting sequence
Choose the required mounting parts and
range spring from Table 4 or 5 and install
them as illustrated in Fig. 7.
Control valve with cast yoke
1. Screw the plate (20) to the coupling con-
necting the actuator and plug stems
using countersunk screws.
For 2100 and 2800 cm 2 actuators, use
an additional mounting bracket (32).
2. Remove the rubber plug from inside the
adapter housing. Fasten the housing to
the left or right of the NAMUR rib using
a hexagon screw (see Fig. 6).
Control valve with rod-type yoke
1. Screw the plate (20) to the carrier of the
plug stem.
2. Screw the studs (29) into the adapter
housing.
3. Place the housing with the mounting
plate (30) on either the right or left side
(Fig. 6) of the plug stem and fasten it
with the nuts (31). Make sure that the
lever (18) to be mounted subsequently
is in horizontal position when the valve
is at mid-travel.
4. Screw the pin (19) into the center row
of holes in the plate (20) and lock it in
a position approximately above the cor-
rect lever marking (1 or 2) as in Table 6.
5. Clamp the clip (21) onto the lever (18).
If the positioner is attached with its air
connection pointing to the front (Fig. 6),
the clip must be clamped onto the
lever (18) with the open side pointing
downward.
6. Plug the lever (18) together with the
clamping plate (22) onto the shaft (25).
The chip must clasp the pin (19).
2.2.2 Presetting the travel
1. Move the valve to 50 % travel.
2. Adjust the shaft (25) in the adapter
housing such that the black pointer (24)
matches the cast mark on the adapter
housing.
3. Fasten the clamp (22) tightly in this posi-
tion using the screw (23).
4. Screw in the pin (27a) at the positioner
lever on the side of the insert nut and se-
cure it with the hex nut (27b) on the op-
posite side. Observe the mounting posi-
tion A or B according to Table 6 and
Fig. 7.
5. Place the positioner on the adapter
housing, observing the operating direc-
tion. Make sure that the pin (27a) rests
against the bracket (28).
Caution!
The pin must not slip from the bracket once
it has been installed.
6. Fix the required range spring (Table 6)
between the diaphragm lever (3) and
span adjuster (6.1) using the outer slot.
7. Adjust the positioner as described in
section 4.1.
16
EB 8355-1 EN
Attachment according to IEC 60534-6