Tension Test Sew-out downloads
Tension test sew out downloads are in .dst format.

(left click the link for download or right click and choose save target here, saving in my documents)
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Top Tension knob too loose or too tight - H Test
If your bobbin does drop an inch to an inch and a half, then you will need to tighten the tension knobs. Always provide a balance when turning these knobs, in other words if you do find that your bobbin tension is good, then turn the small knob 1 ...
Jump solenoid test
My needle bar gets stuck on the wiper blade on every cut. Needle bar goes back up into the right position then comes down, when the wiper comes out,they are stuck together. It is on every needle..I have SWF/B-T1501. Yes it would be the Jump Solenoid ...
VIDEO Understanding Embroidery Machine Tension
Video on Understanding Embroidery Machine Tension for the SWF/E 601C and the SWF/E 1501C (Tensioning your embroidery machine, adjusting Tension, fixing your tension)