Samson 4749, Mounting And Operating Instructions, Page: 34 / 92

5-12 EB 4749 EN
Installation
5.6.2 Heavy-duty version
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See Fig. 5-7
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Required mounting parts and accesso-
ries:
see section 5.8.
1. Prepare actuator and mount possibly re-
quired adapter supplied by the actuator
manufacturer (only necessary for fixing
level 2).
2. Mount the housing (7) onto the rotary
actuator. In case of VDI/VDE attachment,
place spacers (8) underneath, if neces-
sary.
3. For SAMSON Type 3278, VETEC S160
and VETEC R Rotary Actuators, screw the
adapter (6) with the supplementary
adapter (depending on the mounting kit)
onto the free end of the shaft of the actu-
ator. For VDI/VDE version, only place on
the adapter (6) when it is required for
the actuator size.
4. Stick adhesive label onto the coupling
wheel (5) in such a manner that the yel-
low part of the sticker is visible in the
window of the housing when the valve is
OPEN. Adhesive labels with explanatory
symbols are enclosed and can be stuck
on the housing, if required.
5. Fasten coupling wheel (5) on the slotted
actuator shaft or adapter (6) using screw
(3) and disk spring (4).
6. Unscrew the standard follower pin from
the position transmitter's M lever (1). At-
tach the follower pin (Ø5 mm) included
in the mounting kit to pin position 90°.
7. Fasten the position transmitter onto the
mounting plate (2).
8. Place the position transmitter together
with the mounting plate on the housing
(7) and screw it tight. Taking the actua -
tor's direction of rotation into account,
adjust lever (1) so that it engages in the
correct slot with its follower pin:
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Adjust the lever correspondingly and in-
sert a thin screwdriver into the hole to
lock the shaft in place (see Fig. 5-2).
Keep the screwdriver in the hole to lock
in position.