Samson Electri Actuator Type 3374 EB 8331-1 EN - Manual (Page 18)

Old intermediate plate
The old intermediate plate model is marked
with less than six dots. The retrofitting of the
additional electrical equipment involves in-
stalling the spindle gear and intermediate
gear included in the basic unit
(1400-8829). The basic unit is not required
if a resistance transmitter or a digital
positioner is already installed in the actua-
tor.
New intermediate plate (index 6)
The new intermediate plate with index 6 is
marked with six dots (••••••). The retrofit-
ting of the additional electrical equipment
involves installing all the components in-
cluded in the basic unit (1400-8829). See
Fig. 7 and section 5.1).
5.1 Installing the basic unit with
new intermediate plate
(index 6)
Note: This section only describes the addi-
tional mounting instructions for retrofitting
the additional electrical equipment with the
new intermediate plate (index 6). First follow
the instructions described in sections 5.2,
5.3 or 5.4
5.1.1 Limit contacts
Fig. 8: Place tension spring (14.1) on
spindle 4 (4.4), ensuring that the long
wire of the spring rests on the spacer (9)
and on the intermediate gear (5), while
the short wire is located between spin-
dle 3 (4.3) and spindle 4 (4.4).
Continue installation following instruc-
tions in step 8 on page 20.
5.1.2 Resistance transmitters or
digital positioner
Fig. 9: Place tension spring (14.1) on
spindle 4 (4.4), ensuring that the long
wire of the spring rests on the intermedi-
ate gear (5), while the short wire is lo-
cated between spindle 3 (4.3) and spin-
dle 4 (4.4). Place the shim (14.2) on
spindle 2 (4.2). Then attach the serrated
ring (14.3) and push it down as far as it
will go.
Continue installation following instructions in
step 4 on page 22 or page 23.
18
EB 8331-1 EN
Retrofitting additional electrical equipment
Fig. 7 · Components included in basic unit
(1400-8829)
2 Spindle gear 14.1 Tension spring
5 Intermediate gear 14.2 Shim
10 Serrated ring (for 5) 14.3 Serrated ring (for
14.2)