oldfarmboy Report post Posted Tuesday at 04:28 PM Anyone familiar with the needle clamp on this machine? I believe there should be a screw in the bar to limit the maximum depth of the needle when inserted. Also I'm suspicious the clamp screw is not correct for this machine. It's brass and will tighten and hold the needle but the threads don't appear to match well when observed with naked eye. Obviously someone has worked on this machine previously. The check spring was mangled to begin with but we now have that functioning. The setscrew to adjust the needle bar height is mangled as well. Hopefully we can find one. I found a Nakajima 280-L parts diagram but it's not very clear unfortunately. TIA Quote Share this post Link to post Share on other sites
oldfarmboy Report post Posted Tuesday at 04:42 PM More searching turned up this site. Much better pictures. The clamp is slightly different but there should be a screw above the needle. https://manuals.plus/m/8974fd3aa9b86a5fea8798493b21b4c3a490257fbfff0ff8d94fe6d110343e8b Quote Share this post Link to post Share on other sites
CowboyBob Report post Posted Wednesday at 01:09 PM 20 hours ago, oldfarmboy said: More searching turned up this site. Much better pictures. The clamp is slightly different but there should be a screw above the needle. https://manuals.plus/m/8974fd3aa9b86a5fea8798493b21b4c3a490257fbfff0ff8d94fe6d110343e8b The needlebar has on none threaded hole in it so you can see that the end of the needle is all the way up,the one screw holds the needle in & the other one holds the needlebar thread guide on.There are not to many Ind machines that have a needle stop screw,BUT you will see them in alot of household type of machines. Quote Share this post Link to post Share on other sites
shoepatcher Report post Posted Wednesday at 06:13 PM Nakajima 280 became Juki DU-241. Hope that helps. glenn Quote Share this post Link to post Share on other sites