Question about Sewing Machines
If I could get detailed directions with diagrams, I could fix my machine. I was sewing the other day and the needle came down on one of the pins in my fabric, thus causing the message, "main motor blocked". I cleared out the broken needle and tangled thread, and tried to resume sewing. It would not sew stitches correctly. That is when I removed everyting I could to see inside where the bobbin hook passes the needle. They were WAY off. The nearest service center is over an hour away, and I don't have the time or money. I planned to make lace covers for ornaments to give as gifts this year. Please help.
Basically on any sewing machine to time it you will need to separate the two gears that drive the hook. Usually loosen the set screws that attach the gear to the shaft and separate them.
Time the hook first. On center needle position, set the hook so that the point is behind the needle when the needle bar has risen about 2.5mm.
2) Set the needle bar height. Choose the needle position which is the last for the hook to pass.
(Left on most machines, right on older Vikings) At this point, place the point of the hook behind
the needle and set the needle bar height so that top of the eye is just barely below the tip of the
3) Check feed timing. Set the stitch length to the longest stitch. The needle should enter the
fabric just as the teeth drop below the surface of the plate.
Posted on Dec 20, 2008
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