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What to check on pre-installed actuators
If you expect a long delay between actuator valve mounting and
electrical wiring, visually check that the cable entries and cover are
tightly closed.
2.3 Maintenance
All AT SWITCH actuators feature lifetime lubrication and therefore
require no specific maintenance, under the condition that they were
correctly commissioned and used in the conditions they were
designed for.
3 ASSEMBLY
The actuator should be secured directly to the valve using proper
bolts or via a proper interface.
After assembly, the actuator can operate in any position.
However:
• Do not lift or handle the actuator by its handwheel to avoid
shaft and gear damage.
• Cable glands must not be oriented upwards (loss of
watertightness).
• It is recommended not to position the motor downwards.
If the actuator is delivered mounted on the valve, basic calibration
should have been carried out by the valve supplier.
In this case, you do not need to calibrate the travel limits and
torque limiter again.
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