I have a 13" Delta planner, and I've recently noticed that the depth scale is off by almost 1/4". I've loosened the screws and moved the clear plastic scale as far as I can, and it's still way off. I have to admit that I really haven't used the scale all that much, but I do know that when the planer was new (maybe 3 years ago) the scale was accurate. I don't know when or how the scale got so far off.
I've looked through the manual and there isn't any information on adjusting the scale, beyond sliding the clear window. Any ideas on what may have caused this, and more importantly, how to fix it?