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clinton's model 189 - Superior Sewing Machine and Supply Corp.

clinton's model 189 - Superior Sewing Machine and Supply Corp.

clinton's model 189 - Superior Sewing Machine and Supply Corp.

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ML1889-29B. THREAD PULLOFF CYCLE TIMEThe flow control in this circuit determines the time these cylinders have to completetheir stroke. Too much time will show a noticeable hesitation before return of the pulloffcylinder. If the time is short the cylinder will not complete its stroke. Turning is (cw) willincrease time, turning out (ccw) will decrease time.C. TRIM CYLINDER SPEEDTurning the flow control needle in (cw) will slow down the cylinder <strong>and</strong> reduce spin.Turning out (ccw) will increase cylinder speed. If cylinder speed is too slow the presserfoot will rise before the thread is cut <strong>and</strong> the operator could start removing the garmenttoo soon. If this happens the cylinder speed should be increased <strong>and</strong> some mechanicaldevice such as star springs used in conjunction with the flow control to reduce spin.D. NEEDLE THREAD BLOWER BLAST TIMEThe duration of this blast is controlled by the flow control mounted to the larger actuator.Turning in (cw) increases time turning out (ccw) decreases time. About one second isenough to give the operator time to remove the garment <strong>and</strong> blow the thread above thefoot. Should the operator be delayed in removing the garment the thread will remainunder the foot. If the foot is lowered <strong>and</strong> again raised the above sequence will repeat.- 4 -

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