Samson 3274 Mounting And Operating Instructions page 6

Safety instructions and measures
Personal protective equipment
No personal protective equipment is required for the direct handling of the electrohydraulic
actuator. Work on the control valve may be necessary when mounting or removing the de-
vice.
Î Observe the requirements for personal protective equipment specified in the valve docu-
mentation.
Î Check with the plant operator for details on further protective equipment.
Revisions and other modifications
Revisions, conversions or other modifications of the product are not authorized by SAMSON.
They are performed at the user's own risk and may lead to safety hazards, for example. Fur-
thermore, the product may no longer meet the requirements for its intended use.
Safety features
The limit switches automatically switch off the motor in the end positions. In actuators with
fail-safe action, the actuator stem moves to a defined end position upon supply voltage fail-
ure. The fail-safe action of SAMSON actuators is specified on the actuator nameplate.
Warning against residual hazards
To avoid personal injury or property damage, plant operators and operating personnel must
prevent hazards that could be caused in the control valve by the process medium, the operat-
ing pressure, the signal pressure or by moving parts by taking appropriate precautions. Plant
operators and operating personnel must observe all hazard statements, warning and caution
notes in these mounting and operating instructions, especially for installation, start-up and
service work.
Responsibilities of the operator
Operators are responsible for proper use and compliance with the safety regulations. Opera-
tors are obliged to provide these mounting and operating instructions to the operating per-
sonnel and to instruct them in proper operation. Furthermore, operators must ensure that op-
erating personnel or third parties are not exposed to any danger.
1-2 EB 8340 EN