Description
The alarm is stating that the sensors are not completing the circuit to the control for the dust sweeper being raised. First check for mechanical binding of the sweeper to ensure it is fully raised, loosen and retighten the bolts holding the sweeper in place. Replace any malfunctioning cylinders or pneumatic components.
In order to troubleshoot this error, you will need your machine schematic along with a multimeter and a Phillips screwdriver to access the enclosure housing the terminal strip. A small flathead is needed to adjust the sensor position.