Yoshi888

Hey everyone, I love my Juki-341N, but it seems I once again managed to damage my poor machine. I was sewing as usual, but suddenly it bunched up. I removed my work piece and the thread, but also with the handwheel, it was not properly turning anymore. So I started disassembling it to see if there was some thread stuck near the bobbin, but there wasn't anything. Then I removed the whole shuttle to see if there was anything wrong. I have attached a video here, and it seems the bushing inside the brass/copper ring gets stuck when I turn the handwheel too fast. I have cleaned everything I can, and I cannot find anything stuck anywhere. If I slightly push on the Bushing, it seems to work better, but also after cleaning and reattaching the bobbin, it gets stuck very easily. I did not want to disassemble it more because I am not too knowledgeable about this, and I am worried about ruining the alignment/timing. Do you have any idea what could have happened here and how I could fix it? In case it is relevant, I changed the shuttle a few months ago, but there have not been any problems since then. PXL_20251010_182024859 (1).mp4

While I am usually more active on Reddit, I want to become more active here as well so I thought I would also post a bit of an Intro! Leatherworking has been a passion for many years and roughly 18 months ago I also started my own Business. I am from Germany, and luckily, we still have a very big Craft Fair culture (Kunsthandwerkermärkte) and I make most of my money there. I also sell online, but most of my business is in person. This year I also started my own Youtube Channel and make videos for the Patterns I publish. I love designing and making new products so creating and selling patterns was a perfect excuse to always come up with new product ideas. And next year, I will finally open my own store as well 😇 I have a lot of renovation to do over the Winter, but I feel so blessed and excited that I have the opportunity to have my own store. Here is also a Market of me at one of my Craft Fairs some months ago. Happy to be here and be more active in the Future Happy Crafting Josh

Hey I am so sorry, I thought I had my Notifications on, but did not, and totally missed the responses Thank you so much for the Input! I did end up making the repair myself, and it worked great. So also for confirmation in case someone else sees the post in the future, the steps and video worked perfectly for my Juki-LS341 and I did not even have to any realignment or change the needle timing.

Hello everyone, I bought a used Juki LS-341N for my Leather working Business 1-2 years ago, and it has been a great machine so far. Recently, I made a mistake when sewing thicker material, and it seems I have broken the tip of the Hook next to the Bobbin, so the hook does not properly catch the upper thread anymore. I have tried to resharpen and reposition it so it can catch the thread again, but to no avail. When I position the hole sled with the bobbin closer to the needle, the needle hits the side of the bobbin and is bent away from the hook. So it seems the Hook is too damaged that it could be fixed with sanding and readjusting. Luckily, the original seller sold me a new sled (the hole bobbin shuttle with the Hook). Now I have contacted a mechanic who would be able to do the replacement and service, but they have not been very responsive. (I am located in the Southwest of Germany and have not found other options except this person) So I am trying to evaluate how hard it would be to do this myself. Changing the part does not seem too difficult, but adjusting the needle hook timing and the exact hook position has very small tolerances, and I am not sure how well this can be done by an "amateur". Do you guys have experience with this, or could you give me an estimation of the difficulties and pitfalls of such a task? Any help and input would be greatly appreciated! Cheers Josh