I have a
Janome JW8100 and bought a walking foot for it several years ago. It has always squeaked. I'm not sure why and didn't want to attempt to oil it as I worry about ruining my fabric. I'd be interested to hear what you find out from your dealer. I plan to take my walking foot in and ask the local dealer about it when I take the machine in for it's regular cleaning. Also, my walking foot doesn't sit straight on the throat plate therefore making the 1/2", 1/4" and 1/8" marks incorrect and different on each side of the foot. I've just been eyeballing the sewing lines. I do like the walking foot. It does a much better job of feeding the fabric than the regular foot. I don't have dual feed on my Bernina. It's too old!