Good point - here are some pictures:
The manual makes it seem like loosening one of the two sets of screws on the back of the tiller (the second picture) allows the whole thing to slide in order to adjust the offset. My guess is it's the bottom set, which don't want to budge at all.
At first...
I've inherited a Maschio W rotary tiller as part of a farm lease - it's offset right now to cover one wheel track, and I'd like to move it back to center. The manual has a very vague description of how to do this, showing a diagram that isn't very helpful in terms of which bolts to loosen. All...