r/sewhelp • u/SharpTelephone393 • 1d ago

Juki LH-515 problem

I’m having trouble adjusting the thread tension on my second hand Juki LH-515. Does anyone have any instructions on how to set it? The official Juki manual doesn’t provide much information.

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u/Virtual_City8021 1d ago

oh wow a juki lh-515, that machine is a little beast once you get it dialed in. i had a similar headache with mine and tracked down a service manual pdf on a really obscure sewing forum, might be buried in my downloads somewhere.

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u/SharpTelephone393 1d ago

If you find it, you'll save my ass🙏