Hello, I wonder if someone might have a suggestion for a problem I'm having with my Chandler 406RB - 1 (which I've been told is also a lot like one of the Consew models?). I'm pretty new to leather sewing machines, so if I'm making a stupid mistake, please let me know! I'm always glad for constructive criticism!
I think I know what the problem is... just not how to fix it. When I take off the throat plate (?) I can see the hook interacting with the upper thread. Most often, the point of the hook snags part of the thread, causing it to fray. Sometimes it misses the thread altogether, and now it's started occasionally just snapping it cleanly in half. It just seems like the needle is not making a big enough loop for the hook to catch it without issues.
What I've done so far:
I've checked the timing, and according to everything I've read, it should be good. The hook is extremely close to the needle, too. I seem to have the tension balanced properly, everything has been rethreaded multiple times to make certain it's right, the thread has been pulled so it's snug in between the two plates at the tension knob (which I know can be an issue.
I've run my finger over the end of the hook, and though it's sharp, I can't feel any burrs. I'd like to take it off to make sure, but I'm not sure how to go about that.
Does anyone have any suggestions? In general, is there a way to cause the needle to make bigger loops?
Thanks in advance for the advice! I really appreciate it!