Question about Sewing Machines
I do not know how to post my solution so I will send it to the tech guys. Ok my problem was that no matter what the stitch type I selected my 373 only sewed a straight stitch. The solution was to adjust the height of the needle via the adjustment inside the head of the machine. The needle was not going low enough but every time it came down it left a little loop two times down big loop, loop gets caught one stitch. But the loop only got caught every second time down so one time down was skipped. STRAIGHT STITCH Problem is fixed now but what is the correct height of the needle off the deck. One more thing when the machine was made the feed plate was misaligned so the factory just put a washer under one side to raise one side up. TACKY ,THANK YOU Just post this please Dale solved 1
NEEDLE BAR HEIGHT
With the pattern selector dial set at maximum zigzag width and when the point of the rotary hook exactly meets the right side of the needle in ascending travel of the needle bar from its lowest position, at the right needle drop position, the distance between the upper edge of the needle eye and the race of the rotary hook should be 3.3 ± 0.3 mm.
You also need to look at the timing
With the needle bar swung to the right at the maximum zigzag width, the amount of ascending travel of the needle bar from its lower position to the position where the tip of the rotary hook exactly meets the right side of the needle should be 1.7 ± 0.3 mm.
Posted on Feb 11, 2008
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