BUG-O Systems UNI-BUG III - Manual (Page 43)

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Unit runs, but no Faulty control card • Unplug the machine from power. Verify there are
speed control. no bad connections to the control card or on the
board. Replace the card.
Failed speed • Replace if visually appears damaged. Verify no
potentiometer loose or broken connections to the part.
Unit runs, but erratic Poor input voltage • Verify the machine power source is stable and at
or poor speed control. regulation the correct voltage. Measure at the outlet.
Faulty control card • Unplug the machine from power. Verify there are no
bad connections to the control card or board.
Replace the board.
Damaged wheel or • Turn the machine upside down and off. Replace
wheel assembly any wheels that are damaged. Replace any idler
wheels that do not freely turn.
Pitted workpiece • Verify the workpiece is not pitted or damaged in a
way that will give an uneven drive surface to the
machine wheels. Verify the workpiece thickness
does not vary significantly where the machine
wheels travel.
PROBLEM CAUSE REMEDY
TROUBLESHOOTING GUIDE, CONT’D.