Singer 7442 Mechanical Sewing Machine "timing fine" Questions

I have an 8700 juki industrial machine and as I'm sewing the thread will not catch on the bottom bobbin. I'm frustrated.. It was fine the last time I've used it. I have an 8700 juki ...

...it a number of times, checked the tension, and the timing, but it all seems to be working fine. Can you please help me? I would appreciate it very much!! Did you change the needles and then

Needle stopped penetrating my fabric Sewing heavy material, when needle stopped penetrating fabric. Using #16 needle. Heavy duty thread, long stitching #6, tension is fine, bobbin seems to be fine. My

...Timing Tensions new needle 1) Check both the top and bottom tensions for loose fine threads. Thread build up will cause the thread to break. 2) Check the faceplate for sharp edges. Sand with fine ...

...fine, but as soon as I step on the power, it jams. I've taken the shuttle pieces apart and reinserted them about ten times. Each time, I think it will work, but it jams every time. Is this a timing ...

Singer electric, working fine last time I used it Working fine last time I used it about 4 weeks ago. Now when I start it the needle barely moves up and down (not enough to make a stitch) while motor ...

Elna Quilter's Dream 6003 the machine is fine with Elna Quilter's Dream 6003 the machine is fine with straight stitches but the fancy stitches are coming out distorted, as though the bobbin tension ...

I have the Viking Emerald 118 model, less than a month old. I cannot get the button for setting whether the needle stops up or down to work. It worked fine the last time I used my machine. I also am ...

...fine. I put it up for a day or two and now, it won't feed the fabric through so it can sew.. That sounds like a problem with the height of the feed dogs. Can you see them raise and lower? My advice ...