It's small thing really, I just go on and on about it. By just using the machine and care for it, it all will gradually come to you. It's an easy well behaved machine. The only thing that took me a while to pick up on was the insertion of the bobbin, it has to be done the correct way from which it is wound, or the tread will jump out of the tension spring. I was used to vertical bobbin cases, not the drop in kind.