pogo Report post Posted February 28, 2017 (edited) Hello, I'm a nubie who's been lurking here soaking up much incredibly valuable info about the mysteries of industrial sewing machines. I recently acquired a Brother LS2-B837 that seems to be in pretty good condition. It was owned by a man who had a canvas business, so it has seen regular use until its owner retired a few years ago. Since then, it's pretty much been unused. I gave it a good cleaning to remove as much of the varnish and stuck-on lint that I could get off from the underside. Then I oiled it and made a few test runs. It worked pretty well until I changed the bobbin thread and realized I had no idea what I was doing. The bird's nest I got when I tried to sew reminded me. I have almost no experience with full-blooded industrial machines. I do have a Singer 20U73 which comes close, but still falls short of the category. I tried to download a manual from Brother but their manual is really for the LS2-B837-300A, a variant with a thread cutter, synchronizer, and other control features. I have some basic questions the manual doesn't cover--probably because Brother assumes anybody buying one of these machines already knows the answers. I thought someone here might be able and willing to offer some advice. My questions (so far) are: 1. How do I set the lower (bobbin) tension? 2. What it the correct procedure for loading a bobbin (direction of rotation, what should I do with the tail, etc.)? 3. How can I check the machine's timing to be sure it's right or needs adjustment? 4. How do I put oil into the reservoir that lubricates the hook? How much? 5. How much oil should I put into the upper reservoir? 6. What kind of oil should I use? Many thanks. I appreciate anything anyone can offer. Edited February 28, 2017 by pogo Quote Share this post Link to post Share on other sites
Zambezi Report post Posted October 6, 2017 No 1, I find it best to leave the bobbin tension until all the options in the top tension is exhausted. No. 2 as I understand it, the thread should unwind anticlockwise. No3 I'll leave that one. No 4 Just to the right of the rotating hook is a small dip stick. Remove this and put the oil in the hole or came out of. Fill till the dip stick shows enough. No 5 in the top cover is a viewer with two horizontal red lines. The oil level should be between these two lines. NO. 6 plainight sewing machine oil. Quote Share this post Link to post Share on other sites
