As you can see I own 3 craftsman tractors. The old 42" cuts the best with all blades of grass cut and the lawn looking like a carpet. The newest 48" DGT6000 cuts the worst, leaving much uneven uncut grass. I'm on my 3rd set of blades and no change. I've tried high lift blades, Predator blades, and now Gator blades and its still the same. Is there a way to get my "new" tractor to cut nicer? How do the new 46" twin blade tractors cut?
It is quite possible the the deck maybe warped, did you adjust the deck wheels correctly?
I do know that a triple blade deck can be hard to get a proper level because the wide deck can exasperate a uneven cut. Check to see if the deck is level at the cut hight that you are using, also if possible see if the blade hight is equal. It could be possible that the spindles maybe not setting the blades hight right.
One check that I like to make with the engine off, pto disengaged, is to rotate the blades by hand to see that both blade edges lines up with the both adjacent blade edges. If there is a difference between the blade edge alignment, then you will get an uneven cut. Normally, if they don't align you have a bent blade or a bent deck. If you have a deck problem, you can shim spindles with washers to obtain alignment.
OK, Here's the deal. Deck is level, adjusted deck wheels, scrapped all grass from under deck, removed baffle from under deck, installed Gator 3-in-1 blades and it cuts perfect. No striping, missed grass or clumping. I think it was a combination of all the above. I'm happy now !!!!!!
I have a 3 blade 48" on a dgs6500. I adjusted it per manual. Compared to a ingy 3018 48", bx 24 60" it's delivers the smoothest/finest and most consistent quality cut. The other two do a fine job but the sears at wot cuts even and leave no blade left standing.
The only time mine will leave a strip is if I try to mow full bore into a jungle! And the manual even states, if you are knocking down high grass, you need to cut it with the deck in the highest position and only cut half widths at a time, and I agree with that.
It does deliver a very smooth cut, I am very impressed with that aspect of the tractor.