I can’t find any info on how to reset the stitch length dial on my Techsew 2750. The actual stitch length does not correlate at all with what the dial says it’s suppose to be. I tried changing the pressure of the pressure foot but that didn’t make a difference. Anyone know how to tackle this? I know there is a JUKI machine comparable to the 2750, but I’m not sure what model Juki it is. If anyone can tell me that, maybe I can find a service manual to help. Thanks!