In case you're unaware, the blades are measured diagonally. That's why you can have 63" on 60 " deck. Also, sloing down your mower speed can sometimes get rid of those stripes. The first thing I would check is belt tensioner(2)I'll measure them tomorrow. I have a 60" mower, so I assume the blades should be around 20" each. I remember reading that the Cub Cadet Tank mower has overlapping blades and the pulleys and belts have teeth so that the blades are positioned at 90 degrees to each other when the belt is installed so the blades won't hit each other when turning. The teeth in the belt and pulleys prevent the belt from slipping as you don't want the blades to hit each other. The overlapping blades keep the striping from happening. Yep, I just found it online. The 60" mowing deck uses three 21" blades. That's 63" of blades for a 60" deck. Maybe Gravely should consider this design.
You’ve got to be kidding.Get an Exmark or a Bad Boy.
When cutting taller grass, weeds, raise the deck and cut then lower and recut. The front of the deck will flatten the grass and it may not have a chance to be sucked back up to be cut.
Do as Freddie21 suggested, and I’ll add:When cutting taller grass, weeds, raise the deck and cut then lower and recut. The front of the deck will flatten the grass and it may not have a chance to be sucked back up to be cut.
Those blades are way too far apart
Did you ever get the problem fixed?Is there a way to fix the problem of grass left uncut between the blades? It is particularly bad between the left and center blade. I removed the relatively new blades (installed about 2 months ago), and rotated them, L to C, C to R, R to L, and I get the same result...2 stripes of grass the entire length of my mowing, which means I have to mow over the same path a second time, but slightly moved to the side to make sure my blades cut the 2 stripes that are left between the 3 blades. The grass between the left and center blade is up to 12" wide, while the grass left between the center and right blades is about 2-4" wide. I have the ProMaster 260.