Samson 3374 Mounting And Operation Instructions page 36

Installation
Actuators with limit contacts
1. Unscrew screws on housing cover and
take the cover off the actuator.
2. Move the actuator stem to the end posi-
tion depending on the fail-safe action
"actuator stem extends" or "actuator
stem retracts" (see the 'Operation' sec-
tion).
3. Unscrew fastening screws. Slide the actu-
ator board (12) from its guiding to the
right. Slightly lift the board and continue
pushing it further towards the cable en-
try.
Fig. 5-18: Inside view · Actuator with limit contacts
5-16
4. Slide new actuator board into its guid-
ing. Make sure that the gears are prop-
erly engaged. Fasten the board using
screws.
Note
The basic unit is not required for the version
with limit contacts.
Actuator board (12)
EB 8331-3 EN