3. Other

 

Setting Timing

When you time the sewing head, you perform the procedures listed below. Detailed illustrations and instructions for each procedure will follow:

Adjust the Needle Depth if necessary. The correct needle depth is that point where the needle reaches the lowest point in its cycle and approximately the bottom of the eye of the needle is just visible inside the bobbin cavity of the rotary hook.

Adjust the Hook Timing if necessary. The hook timing position is correct when:

	the hook point rotates through the scarf area of the needle, just above the eye
	there is a space of about the thickness of a thread between the needle and the hook

Check your adjustments. Because timing is so critical, you should always visually check your adjustments again before you begin sewing.

EMC 10, EMC 10T, EMC 10/4, EMC 10/4T, ADV 18:

Adjust the UTC (under thread control) if it was loosened or removed. The tab of the UTC must be set in the indentation of the rotary hook far enough to keep the inner basket from rotating. At the same time, it must leave enough space for thread to pass between the UTC and the hook. The UTC must also be positioned so that the sensor can function correctly.