Kuhn GMD55 mower cuts unevenly in heavy forage

gsholz · Jun 2, 2015

We got into haying a couple of years ago and bought an older Kuhn disc mower. I replaced all the blades, changed oil in the cutting bar and transmission and gave it a good cleaning. It is generally working well. Now that we finished baling the hay I see that the mower cuts unevenly especially during turns and in heavy grass. It seems like the mower curtain pushes over the grass and the blades cut 12+ inches up the stem instead of the 4 inches it is set to. It is particularly bad if the grass is tall or laying down some due to wind/rain. It does great if growth is only 2 feet or so.

I currently have the cutting discs/blades set horizontally about 4 inches off the ground. Do I need to tilt the bar forward to cut lower? This would really dig into gopher mounds which we have a few. I'd like to get our fields looking nice and clean after haying. Currently they look pretty rough. Any tips?

Coyote machine · Jun 2, 2015

Not an expert on mowing, but wonder if you can cut down the gopher mounds first with a back blade or bucket, then cut the grass to desired height? And yes, I think you need to get the mower adjusted to do what needs to be done.