Chandler CM101 Blind Hemmer Chain Stitch Sewing Machine, Knocked Down Unassembled Power Stand

Re: Single Thread Portable or Power Stand BlindStitch Hemming Machines:
When I pull the stitching out, several stitches unravel along with it. Is there a way to tack the stitches to prevent unraveling?
Jenna, there are several ways of securing a blind hem stitch at the end of a seam. The easiest way is to sew over and beyond the end of a seam, especially if hemming a tubular item like pants. When you sew over previous stitching it helps to lock the stitches in.
Before you remove fabric from the end of the machine feeder, turn the hand wheel clockwise to swing the needle all the way to the left position in the needle channel which will help secure the thread and stitch in place. Then quickly pull or jerk the fabric hem from behind the feeder which will break the thread and tie off the chain stitch so that it will not continue to unravel. It takes some practice because you may have to use the knee lever or hand wheel to position or release the fabric if it is not already at the end of the feeder.
You can also turn the hand wheel counterclockwise at the end of the seam (like reverse stitching but no formation) just to hide the end stitches, or you can manually weave the unraveled thread back into the chainstitch with a seaming needle.