Samson 2780-1, Mounting And Operating Instructions, Page: 9 / 52

EB 5840 EN 1-5
Safety instructions and measures
WARNING !
Risk of personal injury when the actuator vents.
The actuator is operated with air. As a result, air is vented during operation.
Î
Install the control valve in such a way that vent holes are not located at eye level and
the actuator does not vent at eye level in the work position
1) .
Î
Use suitable silencers and vent plugs.
Î
Wear eye and hearing protection when working near the actuator.
Risk of personal injury due to preloaded springs.
Actuators with preloaded springs are under tension. These actuators are marked ac‑
cordingly by an adhesive label. Additionally, they can be identified by the longer bolts
with nuts protruding from the bottom diaphragm case. They allow the spring compres‑
sion to be relieved evenly when disassembling the actuator.
Î
Before starting any work on the actuator, relieve the compression from the preload‑
ed springs. See 'Relieving the spring compression in the actuator' in the 'Removal'
section.
Risk of personal injury through incorrect operation, use or installation as a result of
information on the actuator being illegible.
Over time, markings, labels and nameplates on the actuator may become covered with
dirt or become illegible in some other way. As a result, hazards may go unnoticed and
the necessary instructions not followed. There is a risk of personal injury.
Î
Keep all relevant markings and inscriptions on the device in a constantly legible
state.
Î
Immediately renew damaged, missing or incorrect nameplates or labels.
1)
If not described otherwise in the valve documentation, the work position for the control valve is the
front view looking onto the operating controls (including valve accessories).