Update on mower bogging down

woodlandfarms · Jul 8, 2013

Well, I think I found the culprit. As you might know I run custom blades. i had new ones made recently, and from a different source. I just realized that they look different. Couldn't figure out why. Turns out it is the angle of the cut of the blade. These guys did it at a 45 (1/2" steel) the previous and factory look to be 60 to 70 degree cuts. I am pretty sure this is what is causing the constant bogging of the mower.

I will get through this season, and deepening the pockets but order new blades this fall, including greater rake on the blade cut and hardened steel (the soft steel blades bend so easily).

MossRoad · Jul 9, 2013

Its amazing what the pitch of the prop can do to an airplane, so its pretty much the same thing on a mower blade. You face cutting resistance from both the grass and the wind. Good observation. :thumbsup:

cqaigy2 · Jul 11, 2013

the bevel on the blade was 45%?

woodlandfarms · Jul 11, 2013

Eyup.

J_J · Jul 11, 2013

Carl,

What was the original thickness of the metal in the blades, and the weight differences in the old and new custom blades?

I tried double blades one time in an X pattern., and it slowed the rpm a good bit. so I switched back to the standard blades.

woodlandfarms · Jul 11, 2013

I would say my RPM is down a bit, noticeable but not problematic.

Original blades are 3/8" I think (will measure) and I will also weigh.

cqaigy2 · Jul 12, 2013

woodlandfarms said:
Eyup.

I think my blades are more like 180 degree. :confused2:

woodlandfarms · Jul 12, 2013

cqaigy2 said:
I think my blades are more like 180 degree. :confused2:

Darn it. i just caught my typo. 45 degrees. Couldn't figure out what you guys were on about. So embarrassed. The angle of the current cut on my custom blades is 45 degrees and should be a lot shallower like 20 degrees.