Craftsman 753-1238 Trimmer Clutch

The Craftsman 753-1238 Trimmer Clutch is a power transmission system that is used in compatible rotary cutters to engage and disengage the cutting attachment according to engine speed. It operates through centrifugal force, where the clutch shoes spread apart and come in contact with the drum when the revolutions of the engine increase. The part is attached to the drive shaft and cutting head assembly and only supplies rotational motion when needed during operation. It is attached between the output shaft of the engine and the drive system, which allows minimizing the amount of head rotation at idle and is useful in controlled engagement during trimming and edging.