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component, impending bearing failure, bent shaft,
damaged belt or foreign material inside the clutch.
Periodically the operator should check for unusual noise
or vibration. Prompt repair can prevent serious machine
damage and costly downtime.
Erratic speed control or abnormal response will usually
affect the product being manufactured. When the clutch
does not seem to control the way it should, the problem
can be either electrical or mechanical. When
investigating, check for loose belts, loose setscrews,
overloading and other mechanical problems. It is not
always the fault of the controller. Motor current should be
monitored; it can indicate mechanical binding or product
overloading.