Moderator Wizcrafts Posted March 1, 2017 Moderator Report Posted March 1, 2017 The problem with Biothane is that it is religious and heals the holes instantly, just before the knots are pulled up. I had better luck sewing Biothane on a Union Lockstitch than on my CB4500 or a Cobra Class 4. Quote Posted IMHO, by Wiz My current crop of sewing machines: Cowboy CB4500, Singer 107w3, Singer 139w109, Singer 168G101, Singer 29k71, Singer 31-15, Singer 111w103, Singer 211G156, Adler 30-7 on power stand, Techsew 2700, Fortuna power skiver and a Pfaff 4 thread 2 needle serger.
Members Parott1 Posted March 2, 2017 Author Members Report Posted March 2, 2017 (edited) After messing with the tension I had it sewing perfect. Then when I went to use it today I was having problems with it in reverse. When I start my leashes, I start it in reverse, sew 3 stitches and then sew forward. Well today the bottoms of the rev/forward look like spaghetti on the bottom. It's also now skipping stitches i.e. On the 3rd stitch in reverse I go past the bottom dead center and go forward. It just skips the last stitch and leaves me with a hole where the needle went in. This also happens when doing a turn. The needle goes in, then I go past BCD and turn. The thread just pulls out and skips the last stitch. Could this be a timing issue? Edited March 2, 2017 by Parott1 Quote
MADMAX22 Posted March 2, 2017 Report Posted March 2, 2017 (edited) Make sure the hook pics up the loop before changing direction. May have to bring the needle up a quarter inch on the up swing before this happens (sounds like ya were doing this) Also check the allen head bolts thru the access port where the reverse/stitch lever is (not too tight or the handle will be very hard to move). Ive also found the one in the access plate below the lever may need tightening as well. It still happens on mine occasionally but is reduced. Edited March 2, 2017 by MADMAX22 Quote
Members Parott1 Posted March 3, 2017 Author Members Report Posted March 3, 2017 (edited) Not sure if this can be of any help in diagnosing the problem, but I did a few test pieces just sewing backwards. The machine skips a stitch every 3-4 one. The underside also looks very sloppy. Bobbin thread loose and not pulled tight to the material Edited March 3, 2017 by Parott1 Quote
Members SolarLeatherMachines Posted March 3, 2017 Members Report Posted March 3, 2017 Where are you located? Quote Alexander
Members Parott1 Posted March 3, 2017 Author Members Report Posted March 3, 2017 North east Pennsylvania Quote
Members SolarLeatherMachines Posted March 3, 2017 Members Report Posted March 3, 2017 What kind of lube are you using? Quote Alexander
Members SolarLeatherMachines Posted March 3, 2017 Members Report Posted March 3, 2017 Go here and watch the video on performing a timing check. http://www.solar-leather.com/supporthelp/ Quote Alexander
Members Parott1 Posted March 3, 2017 Author Members Report Posted March 3, 2017 The machine appears to be in time. I'm using silicon lube that I got from Ryan Neal Quote
Members SolarLeatherMachines Posted March 3, 2017 Members Report Posted March 3, 2017 Type of thread? Quote Alexander
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