Members DG1 Posted October 3, 2024 Members Report Posted October 3, 2024 (edited) Hello, I recently aquired a Juki LU 562. It is sewing great but at higher speeds makes an irritating higher pitch vibrating/chattering noise as if something is loose. It's hard to tell but it appears like the noise is coming from the head area, maybe where the walking foot mechanism is at the back. I've gone over the machine and can not find anything loose. It's hard to describe the sound so I've attached a link to a video. I don't think this noise is normal. Does anyone have any suggestions on what to check? Thanks! It also makes the same noise when not sewing anything with the presser foot up. https://www.facebook.com/61560928232099/videos/513472158205034 Edited October 3, 2024 by DG1 duplicates Quote
Members purplefox66 Posted October 3, 2024 Members Report Posted October 3, 2024 Your link is not working Quote
Members DG1 Posted October 3, 2024 Author Members Report Posted October 3, 2024 48 minutes ago, purplefox66 said: Your link is not working Hmm, could you try it again? I'm not super familiar with facebook, the link works for me but maybe only I was able to see it. I pressed the "share button" so maybe it will work now. I tried to post the vido here but even though it is only like 16 seconds long the file size was too long. Quote
Members DG1 Posted October 3, 2024 Author Members Report Posted October 3, 2024 5 minutes ago, DG1 said: Hmm, could you try it again? I'm not super familiar with facebook, the link works for me but maybe only I was able to see it. I pressed the "share button" so maybe it will work now. I tried to post the vido here but even though it is only like 16 seconds long the file size was too long. https://www.facebook.com/share/p/dvprqQ1uXHrFpsZZ/ Maybe this link will work Quote
kgg Posted October 3, 2024 Report Posted October 3, 2024 (edited) 1 hour ago, DG1 said: https://www.facebook.com/share/p/dvprqQ1uXHrFpsZZ/ Maybe this link will work This link isn't working and here is the message I get when I click on the link: " This content isn't available right now When this happens, it's usually because the owner only shared it with a small group of people, changed who can see it or it's been deleted." Maybe try putting the link on youtube. kgg Edited October 3, 2024 by kgg Quote Juki DNU - 1541S, Juki DU - 1181N, Singer 29K - 71(1949), Chinese Patcher (Tinkers Delight), Warlock TSC-441, Techsew 2750 Pro, Consew DCS-S4 Skiver
Members DG1 Posted October 3, 2024 Author Members Report Posted October 3, 2024 24 minutes ago, kgg said: This link isn't working and here is the message I get when I click on the link: " This content isn't available right now When this happens, it's usually because the owner only shared it with a small group of people, changed who can see it or it's been deleted." Maybe try putting the link on youtube. kgg Hopefully this works Quote
kgg Posted October 3, 2024 Report Posted October 3, 2024 2 hours ago, DG1 said: I don't think this noise is normal. Does anyone have any suggestions on what to check? Thanks! My suggestion would be to remove the thread from the needle and lock the presser foot up. Then give it run to see if the noise disappears. Also have you oiled the head recently??? kgg Quote Juki DNU - 1541S, Juki DU - 1181N, Singer 29K - 71(1949), Chinese Patcher (Tinkers Delight), Warlock TSC-441, Techsew 2750 Pro, Consew DCS-S4 Skiver
Members DG1 Posted October 3, 2024 Author Members Report Posted October 3, 2024 11 minutes ago, kgg said: My suggestion would be to remove the thread from the needle and lock the presser foot up. Then give it run to see if the noise disappears. Also have you oiled the head recently??? kgg I have run the machine unthreaded with the presser foot up, it makes the exact same noise. After purchasing the machine, I cleaned it and thoroughly oiled directly every part reachable that moves against another part , plus all the oil holes. I've physically moved every linkage in the head and everything is tight with no play. Same with the walking foot linkages at the back of the machine. The only part that really has any play in it is the presser foot linkages at the back of the machine that go to the knee lifter, but I've held on to those while running the machine to dampen any possible vibration and it's not coming from there. I've subsequently examined the bottom of the machine more thouroughly and everything is very tight except for one thing: I noticed the gear that is attached to the hook shaft has just a tiny bit of play or backlash. I can just barely detect some rotational movement of the hook (the actual hook not the bobbin case) but it's really a tiny amount, like you can't really see it but you can feel it. I'm not sure if there is supposed to be zero backlash at that gear. If so I don't see how to take out the backlast. the gear is tight to the hook. Quote
Moderator Wizcrafts Posted October 4, 2024 Moderator Report Posted October 4, 2024 Check for too much slack in the feet. It sounds like the feet are slapping at speed. Also, try reducing the amount of foot lift and see if it runs smoother. 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 DG1 Posted October 4, 2024 Author Members Report Posted October 4, 2024 1 minute ago, Wizcrafts said: Check for too much slack in the feet. It sounds like the feet are slapping at speed. Also, try reducing the amount of foot lift and see if it runs smoother. I did adjust the foot lift (using the wingnut at the back of machine). It does not seem to make any difference. But I don't think it's that since it makes the exact noise with needle unthreaded, foot in the up position. Quote
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