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Turn RV1 completely to the left (minimal position) and RV2 completely to the right.
Switch the power on.
BE CAREFUL: a large part of the circuit is under mains power, do not touch it!
Adjust RV2 so that the motor will have the lowest speed. It is important for the motor to start at any time,
even where RV1 is put in its minimal position, otherwise there might be large currents causing sparks
that burn the carbon brushes.
NOTE: If the torque is poor, swap the two wires, connected to "VAC", mutually. The connections to
"MAINS" must remain un-changed!
Test & connection
9
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