Samson 3374, Монтаж и эксплуатация

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5.1 Limit switches
The retrofit kit (order no. 1400-8830 ) is re-
quired to install limit switches. If the actua-
tor is not already equipped with poten-
tiometers or a positioner, the basic unit
(order no.
1400-8829 ) is also required. The
unit includes the spindle gear (2) and the in-
termediate gear (5).
Note!
To mount the limit switches, the actua-
tor stem must be in end position, i.e. the
stem must be either fully extended or fully re-
tracted. If necessary, move the stem to the
appropriate position with the manual over-
ride on the side.
1. Remove the fastening screws. Push the
actuator board (1) from its guiding to
the right. Slightly lift the board and con-
tinue pushing it further towards the
cable entry.
2. Clip the spindle gear (2) onto the
sleeve (3). Make sure the lateral latch is
properly engaged in the groove of the
sleeve.
3. Plug intermediate gear (5) onto the
spindle (4). Place the serrated ring (10)
on top and push it down until it will not
go any further.
4. Equip each of the two contact cams (6)
with a retaining ring. Make sure that
the ring is inserted in the groove. The
opening of the retaining ring must point
towards the center of the face of the
contact cam with the larger radius.
To ensure that the ring is clamped in
tightly, press both ears of the retaining
ring together with flat tongs.
5. Plug both premounted contact cams (6)
ring gear first onto the cam bracket (7).
6. Push adjustment gears (8) onto their
spindles and fasten with one screw
each.
Check whether the adjustment screws
can be turned easily. If not, slightly
loosen the screw again.
7. Turn both contact cams (6) as illustrated
in Fig. 7.1 corresponding with the posi-
tion of the actuator stem on the cam
bracket (7).
8. Push the spacer (9) onto the spindle for
the cam bracket. Push the cam bracket
with both cams onto the spindle corre-
sponding with the position of the actua-
tor stem as illustrated in Fig. 7.2.
Make sure that the outermost cog of the
cam bracket (7) engages in the gear-
wheel of the intermediate gear (5). In
addition, the adjustment gears (8) must
engage properly in the corresponding
gears of the contact cams (6).
9. Secure the cam bracket (7) with the ser-
rated ring (10), pushing the ring down
until it will not go any further.
10. Position the terminal board (11) at the
base of the support at a 45° angle (ap-
prox.) with the switches facing towards
the gears. Push the upper end of the ter-
minal board towards the gears until the
board is in a vertical position and
properly engaged in the support.
11. Push the actuator board (1) back into its
guiding. Make sure that the gears are
properly engaged. Fasten the board
using screws.
Adjust limit switches as described in sec-
tion 4.2.1.
16
EB 8331-1 EN
Limit switches