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Hello all, I ended up purchasing the Juki LU-152 and found an Instruction Manual free to downlaod, however the images are not clear (probably a copy of a copy). The machine was delivered yesterday and ready to go. The delivery guy threaded it for me (gave me some tools, extra needles, etc.) and gave me a quick how-to which I recorded on my husband's cell phone. I had him so some of my leather, change the stitch size and the speed. It was all good. Then, the next day, I decided to thread the machine to get familiar with the procedure, however, I didn't take his thread out until I fully completed putting mine in following his pattern. It was when I was trying to remember how to lift the "foot" (and needle) to place the leather underneath. I thought I had to turn the wheel towards me and when that didn't work then I hit the knee press plate. I placed the leather underneath, let go of the press plate and pressed the foot pedal. The needle went up and down really fast like she was ready but the leather stayed in place. I tried this a few times, then removed the leather, and looked to see if that center mechanism under the "foot dog" with the ridges moved. It moved forward and back a little and stopped (maybe got stuck) I turned it with the wheel and it moved but then got stuck. I opened the bobbin lid and saw some tangled threads (from the needle-white and the bobbin-black).They were tangled. I took it out and when I went to put the bobbin back, I realized I don't have a bobbin case. I think this machine has it built in?? Anyway, the bobbin fits perfectly with no wiggle room, but now the needle won't catch the bobbin thread. I'm not even sure at this point if I'm doing it correct. I spent hours online looking for video's on You Tube and had everyone show me how to thread their machine but I can't find this model being threaded or having a bobbin inserted and catching the bobbin thread. I even tried that safety clutch button thinking maybe that's stuck and when I pressed it (the right one) and turned the wheel toward me, I never heard a click or "clunk". I turned the wheel 100 times to be sure. Nada. Does this sound familiar? Are there a few things going on here? Can anyone be of assistance? I'm not sure if anyone else had this problem on this forum, so I hope I'm not driving anyone nuts with this same problem. I tried doing a search before I wrote this and nothing came up. Thanks, Maggie