ABB LME620-AI, Operating Instruction

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Installation
12 LME620-AI/-AN (Contrac) 42/68-273-EN
3 Installation
3.1 Actuator check
Before you start to install the actuator make sure that the delivery status corresponds to the
ordered status and to the intended use.
• Make sure that the motor and the connection chambers are free of dirt, moisture and
corrosion.
• Make sure adequate travel is provided for the valve stroke.
3.2 Installation position
Fig. 3
The actuator's gearing LME620-AI/-AN (Contrac) is lubricated with grease. This means that any
mounting position can be selected.
3.3 Installation instructions
• Make sure that the actuator is accessible from all sides to ensure convenient hand wheel
operation, electrical connection, and replacement of assemblies.
• Avoid direct exposure to rain, snow and other environmental influences.
• Make sure that the drive elements (thrust rod and valve stem) are not exposed to any
additional vibrational loading equivalent to more than double the rated force (e.g., by a spring
coupling or a vibration absorber between thrust rod and valve stem).
• The maximum rated force of the actuator must not be permanently exceeded. Occasionally
and for short periods only, loads of up to twice the rated force are permissible.
• When mounting the actuator close to heat sources use an insulating layer or shielding.
• In IMV 1 mounting position, the actuators are resistant against vibrational loading acc. to EN
60068-2-6, table C.2 up to 150 Hz and additionally 1 g/30 min. If the operating conditions do
not allow you to estimate whether the actuator's vibrational loading is permanently exceeding
the proven contingent by a significant amount, you will need to reduce the maintenance
intervals accordingly.