LTQ008 – LTQ230 Series 3-Phase Products User Instructions – AIIOM000165 EN
Page 19 of 40
5.8 Adjustments
This actuator arrives calibrated and tested by the factory to stop at 0° for the CW position and 90° for the CCW
position. The auxiliary switch settings are based on the CW and CCW stops. Ideally, the auxiliary switches are
set a few degrees in advance of the respective stop switches. Most installations onto valves or dampers will
likely not require recalibration of these settings. Mount the valve or damper. If the unit requires adjustments,
proceed to sections 5.8.1, Adjusting CW End-of-Travel, and 5.8.2, Adjusting CCW End-of-Travel. Otherwise,
proceed without adjusting the cams
For most actuators, the stop positions are independent of one another – e.g., the CW position is
accurate while the CCW position may need adjustment.
Follow these directions carefully and in order. Actuator damage due to improper testing and
commissioning will not be covered under the warranty.
To avoid the dangerous or fatal electrical shock, turn off power to all electrical equipment before
working on electrical connections or changing cam positions.
The mechanical stop screw only limits handwheel operation; it is not to be used as an electrical travel
limiting device.
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