I think you need new blades did you just sharpen your blades and they are to short and there is a space between the blades, they are just getting wore out. Or maybe you got one upside down. Its to do with your blade
When this happened to me I checked and found I had mounted the blade upside down. I did it again with a Meg-Mo wheel and didn't notice that was upside down until I got into really high grass. You could also be going to fast or do nor have the mower rev'd up high enough.
#4
dria
Yeah, you might want to check the thread about installing new blades and what direction they should be in. Check the blades for any damage as well. Occasionally a large stone can chip part of the blade.
Others posters here have suggested worn or incorrectly installed blades, and that is a likely solution. Blades are measured from sharpened point to sharpened point, and should be installed , when looking from underneath and from the front of the mower, with the sharp side of the blade on your right side.
It helps to think about how the two blades work together to provide a seamless cut. One blade is mounted slightly ahead of the other so that the blades can't touch, but the blades' cutting paths can overlap. Now picture the mower taking a right turn then a left turn and imagine how that might affect the relative position of the two blades to the path of the tractor. It helps to think about the cutting paths of the blades as circular pieces of plywood.
if your mower has two blades which I'm guessing it does then the deck could be mounted too square to the tractor. The blade are short as to not wack one another by design. the way they make up for the gap this creates is too off=set the blades until the cuts overlap. Usually this is only a problem on mowers with two blades
