ScrewItUpSteph Report post Posted May 6, 2020 I am really late to the party, I know...... But is there an specific adjustments I should be making when down stepping from a #22 needle and 138 thread to a #20 need and 92 bonded nylon thread? I am new to industrial machines, and we picked up a Cobra 26. It came with a #22 needle and a spool of 138 thread. I followed the manuals instructions to load a new bobbin, change the needle and rethread the machine with #92 bonded nylon thread. I checked to make sure it was done per instruction manual and Al Bane, and I am pretty confident I did it correctly. My problem comes when I try to stitch. I am using 4oz waxed finished leather in an attempt to make a tote. I was snapping thread, so I adjusted the tension and solved that problem, however, the hook is not catching the top thread (it never did, even before I moved the snapping thread issue). I have searched, and googled, and cussed.... I decided to switch back to the #22 and 138 thread to see if I would still have the problem, and magically.... there was no issues. I am probably not wording my question correctly and I apologize. As I said I am very new to this and any help would be greatly appreciated. Stephanie Quote Share this post Link to post Share on other sites
nylonRigging Report post Posted May 6, 2020 So .. your question is ? , Why Hook is dropping the # 92 thread on the stitch every time . But when rigged up with #138 thread, the Hook picks up that thread for complete stitch ? . Quote Share this post Link to post Share on other sites
DonInReno Report post Posted May 7, 2020 The thicker thread and needle is probably giving a better target for the hook to grab. As with all issue of this type always change to a new needle in case it’s just a bent needle causing the problem. Then adjust hook/needle timing and clearance. There are many discussions covering that topic. Best of luck! Quote Share this post Link to post Share on other sites
Bert51 Report post Posted May 7, 2020 If I change my thread/needle size, I adjust my tensions to suit. On some of my machines I have a Bobbin Case setup for one size thread, if I change thread and needle size then I change cases and sew a piece of scrap to set the tensions again. When you changed your needle did you put the needle in correctly, it only needs to by off a little and the hook will not catch it. I double check all changes, if I don't I know I'll muck something up. Bert. Quote Share this post Link to post Share on other sites
CowboyBob Report post Posted May 7, 2020 You have some good tips so far.It the length the same as the one you took out? Quote Share this post Link to post Share on other sites
