Bush hog blade stopping

[LD1]

Did you ever mention what model tractor it was? Perhaps someone may have some more model-specific info. But in general.....if the PTO slows down and the engine does NOT, then its probably not a simple or cheap repair.

 

[yanmars]

Actually this is my brother's tractor. Mine is awaiting an O ring and he is not using his and let me have it. It is a New Holland TC40.
He had lent it out and I talked to him today. The guy that used it, abused it and did no upkeep. I found out he bush hogged heavy stuff for hire and never paid my brother anything. Also bent the front bucket so badly it had to be rebuilt.
I now suspect that the hydro also is hurt. So in effect that still leaves me without a mowing tractor for the most part. Just hate it. As I was going to use his tractor I changed all fluids last fall, all filters, had the bucket fixed and the steering column etc. Thought that was only fair if I was going to use it. Did not know then the extent of the troubles it had.

 

[sunandsand]

This is why I keep a box of junk tools around. "Hey, can I borrow a screwdriver?" "Sure, take this one." If it comes back AT ALL, it will invariably be mangled beyond use but since it is a junk tool anyway, I don't worry about it and I still look like a good guy.

On the other hand, if someone tries to borrow something expensive, delicate, precision, irreplaceable, they have exactly ZERO chance of it taking away with them, and further requests will be responded to with meteor strikes - and that's my first response.

Do not lend tools, you will regret it. Every time.

Best Regards,

Mike/Florida

 

[WranglerX]

I do not rent out or loan tools or anything else because IF they come back they are usually broken... MY dad had a policy I grew up with, if you borrow something and you damage it you either had it repaired or you replaced it..... Great concept, except does not seem to work in this day in age....

 

[nyford1510]

Hi













































Hi
Have any of the previous commenters ever flipped over a bush hog to sharpen the blades. If they had they would not be making the
suggestions they made.
There is no direct connection of the pto shaft and motor to the blades. The blades spin freely on pins that are connected to a frame that is connected to the motor. On mowers the blades are connected directly to the motor with or without a clutch usually via belts. On a bush hog when the motor gets up to speed the frame holding the blades gets up to speed and the free spinning blades
spin due to centrifugal force. When your blades bog down and stop cutting the frame holding the blades is still spinning at the correct
speed, but the blades are stalling because of the heavy resistance
of the tall grass.
That is why it works fine in short grass.
The simple solution is to raise the bush hog up until it cuts and make a few passes progressively lowering the bush hog after each
complete pass.
If you doubt the veracity of my opinion just flip over the bush hog and see for your self.
While you are at it sharpen the blades with an angle grinder.
Dull blades are part of your problem.
Good luck .

 

[airbiscuit]

I suppose it is possible that in heavy grass the hinged blades swing back and don't cut well. I agree to sharpen the blades for grass. It will also help to adjust the mower so the rear end is elevated. This will make the discharge much more effecient.

 

[TerryR]

There is no direct connection of the pto shaft and motor to the blades. The blades spin freely on pins that are connected to a frame that is connected to the motor.

What???
The blades swing on an arm that is very directly connected to the PTO shaft. At operating speed centrifugal force keeps the blades extended so they are thus also directly connected to the PTO shaft. They only swing back if they hit something very sold, or if the rotational speed is seriously reduced, as when you shut off power or kill the engine.

 

[wpmlbg]

I think airbiscuit has the right idea. If the rear of the mower is lower than the front, the mower must cut everything twice. If you adjust the mower so the rear is at least the width of the blades higher than the front, it only has to cut the foliage once at the front. At the rear the blade will skim over the top of what the front just cut, making it easier on the whole set up. It's worth a try.

 

[nyford1510]

hi
I never said the blade swings back .I said it bogs down due to the heavy resistance of the tall grass. Once it bogs down if you continue on it cannot regain momentum and return to speed.

 

[nyford1510]

hi
I never said the blade swings back .I said it bogs down due to the heavy resistance of the tall grass. Once it bogs down if you continue on it cannot regain momentum and return to speed.

hi
Try only cutting 1/2 a bush hog width and see what happens.