Rotary Cutter Bush hog crazy wheel....

[jaken]

Ain't too crazy or may it's too crazy. Anyway it won't pivot...it gets sideways and trys to be a plow. Dang thing will pivot easily by hand when not on the ground.

Does the angle look to steep? I'm beginning to think it has the wrong wheel on it. I bought it used.

Don't know why the site turns the pic sideways.

 

[aczlan]

It should be offset so that the centerline of the wheel is behind the centerline of the pivot "axle" (like a swivel caster wheel).

Aaron Z

 

[ch1ch2]

Did you put lots of grease on it?
If it turns while in the air, it should turn on the ground if it is well greased.

 

[tcartwri]

The only thing I can say is that the pivot has too much castor angle. I think you're right that someone has used a universal replacement, as it looks to me that if you reversed the wheel would contact the mower body.

 

[hosspuller]

Aczlan is correct. Does not appear to have any caster angle. The pivot point should be vertical and the axle should be behind the pivot. That fork is wrong for that cutter & the pivot is bent.

 

[Midniteoyl]

Yep.. The fork angle is all wrong.. Should be more raked back with the wheel axle behind the pivot.

 

[aczlan]

Here is a picture of one with the correct angle (the pivot for the wheel swivel is marked with a red line in both pictures):

Note that the line is off center on the wheel. That way it will swing around to follow the tractor's direction of travel.

Here is the line drawn through the same place on your mower.

Note that the line goes through the center of the wheel. That makes it so that it does not naturally pivot to follow the direction of the tractor.

Aaron Z

 

[k0ua]

I would attempt a repair by cutting the vertical straps off of the stirrup and then cut a 45 degree chunk out of each vertical piece, then weld the vertical pieces back to the remainder of the stirrup. This should give it some rake angle. No real cost involved, just some time and one welding rod.

 

[jaken]

I would attempt a repair by cutting the vertical straps off of the stirrup and then cut a 45 degree chunk out of each vertical piece, then weld the vertical pieces back to the remainder of the stirrup. This should give it some rake angle. No real cost involved, just some time and one welding rod.

Thanks everyone for the quick replys! Thank you aczlan for the red lines. I'm a visual person. I will remove that thing and break out the MIG and do some adjustments per K0ua's suggestion.

 

[aczlan]

I would probably make one cut at a less extreme angle (20 degrees?), then flip the cut pieces around front for back (so it goes back together at an angle rather than straight) and weld that together.
Only one cut/weld vs two that way.

Aaron Z

 

[k0ua]

I would probably make one cut at a less extreme angle (20 degrees?), then flip the cut pieces around front for back (so it goes back together at an angle rather than straight) and weld that together.
Only one cut/weld vs two that way.

Aaron Z

Oh, sure, come up with an easier way to do it.

 

[aczlan]

I've even got a diagram :

The diagram uses a 15 degree cut for a overall angle of 30 degrees once you flip the cut piece around.

Aaron Z

 

[k0ua]

I've even got a diagram :
View attachment 472349
The diagram uses a 15 degree cut for a overall angle of 30 degrees once you flip the cut piece around.

Aaron Z

THAT, it over and above the call of duty.:laughing:

 

[aczlan]

THAT, it over and above the call of duty.:laughing:

Visio makes it easy (5 mins?)...

Aaron Z

 

[tcartwri]

nerd.

 

[aczlan]

nerd.

3nd generation nerd

Aaron Z

 

[k0ua]

Visio makes it easy (5 mins?)...

Aaron Z

Spent many an hour making network diagrams with Visio. All in the past now..

"Hi my name is James, so how much do you know about Medicare"?

 

[dieselcrawler]

Here is a picture of one with the correct angle (the pivot for the wheel swivel is marked with a red line in both pictures):
View attachment 472315
Note that the line is off center on the wheel. That way it will swing around to follow the tractor's direction of travel.

Here is the line drawn through the same place on your mower.
View attachment 472314
Note that the line goes through the center of the wheel. That makes it so that it does not naturally pivot to follow the direction of the tractor.

Aaron Z

While I completely agree with the wheel axle point needing to be behind the swivel point, I disagree that the swivel point should be true vertical. Mine, and meny others have a few degrees of tilt, to allow the tail wheel to slightly lift the rear of the mower deck when in reverse, and ride closer to the ground going forward.

 

[aczlan]

While I completely agree with the wheel axle point needing to be behind the swivel point, I disagree that the swivel point should be true vertical. Mine, and meny others have a few degrees of tilt, to allow the tail wheel to slightly lift the rear of the mower deck when in reverse, and ride closer to the ground going forward.

I agree, the one on my rough cutter is not vertical either. Note that I did not say that it has to be vertical, just that it needs to be off center on the wheel.

Aaron Z

 

[dieselcrawler]

Aaron, I think we are on the same page, didn't mean to single you out, exactly, more using the pictures you posted for example reasons. Apologies to you if nessasary.