From rodnlin@gmail.com@21:1/5 to All on Thu Jan 28 02:20:34 2016
Hi ..k.. my wife's 550d has the same problem with it but i think I have found the following problem. .the grub screws have come loose in side the ..stitch length dial very easy to fix ..rod in tasmania Australia hope this helps you can ask me for
help if you want to cheers. .