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Modifying a finishing mower

3350 Views 10 Replies 5 Participants Last post by  Raindem
Hi. I have a 6ft Worksaver brand finishing mower. It works good but the highest cutting height is about 4", which is a little too low for the long prarie grass I have on my land.

I've determined that if I remove the wheel "legs", flip them upside down, and re-drill the mounting holes I can add 6" inches to the cutting height. Would this plan work? Or is there something about a 10" cutting height that I'm not taking into consideration?

Has anyone else modified their finishing mower to cut higher?

Thanks.
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I suspect that the reason that the quality of the cut diminishes at higher cutting heights is due to the fact that the deck is designed to create a lifting action on the grass and when the higher setting upsets this the grass can actually get blown down away from the cutting blades. Hopefully someone with more knowledge of this will be able to confirm or debunk this theory.

There are a couple of things that I can think of that you may want to consider besides a potentially poor quality of cut. The first is shielding from grass and objects thrown from under the deck. When run close to the ground the deck tends to keep projectiles from getting out from under it. The higher the deck is the more chance there would be to throw something. Second, how will the higher position affect the angles of the PTO shaft? While a PTO shaft is capable of turning in a relatively wide arc, the loads, the wear and the vibration will increase significantly as the running angles increase.

JN
You bring up some good points. It is a rear discharge model and I noticed that they have short sections of chain to keep stuff from getting launched out the rear. I'm sure I could lengthen those as well as rig something up for the side.

As for the PTO shaft it shouldn't be a problem. Right now it slopes down from my tractor (JD 2305). My proposed modification would actually bring it more level.
Hi, perhaps a rotary cutter would be better suited for the type of cutting you have. The rotary cutters have a large spinning disc with 2 heavy duty blades and are designed for heavy / large weeds grass and mall brush, these are also referred to as bush hogs.
Jn is right on with hi pot about rasing the mower to high.
GB in MN
Is the cutting height of a rotary higher than a finish mower? My land is pure grass so I don't need to worry about heavy brush or saplings. I really like the way my finishing mower cuts. I'd just like to make the cutting height a little higher than stock.
Here's my mower. I was also thinking of taking one of the brackets to a fabricator and have him make me new ones with different angles.

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