Bush Hog S072 shaking

[marvinminor]

I'm new here and am probably posting in the wrong place. I have a Bush Hog S072 attached to my Ford 4000. I bought it used and I guess I got taken. It vibrates all day, enough to shake the tractor and me. Do you think this is a blade problem or maybe a bent shaft. It shakes so much the frame has split in several places. Any suggestions appreciated.

 

[Happy Gilmore]

If the driveshaft connected to the PTO is bent (it happens) you'll notice it while the shaft is turning with the PTO engaged. Another thing to check is the pivot points on the blades. They sometimes get stuck in position and will shake the heck out of everything. When this happens I will free them up and smear grease between the blade and carrier, usually fixes the problem. Check for a severely bent blade. All of these things will cause the mower to be out of balance.

 

[Happy Gilmore]

Is the splitting you refer to cracked welds? Pics?

 

[Dozernut]

I think Happy Gilmore nailed it. Sounds like a blade has folded in on itself and stuck. The blades are hinged, they swivel on a bolt or pin. If you hit something the blades will fold back to prevent damage. Lift the mower up and look and see if both blades are free, if not you might need a hammer or bar to free the blade so they both swing free.

 

[Tx Jim]

marvinminor
Have you ever looked under the deck at the blades????

 

[sawtooth]

Yes bent or damage blades would be first area to check

 

[Happy Gilmore]

How'd you make out:confused3:

 

[marvinminor]

Thanks for replying guys! Sorry, but the notice that I had replies had gone to my spam box and I just now found it. I need to do some cutting on Thursday and I will check the blades and driveshaft for bends or sticking blades let you know. The cracks are in the welds. I had it re-welded last year by what I thought was a pretty good welder but the shaking broke them all again. I've been under there before and didn't see anything real obvious, but I'll look a lot closer look this time. This old bushog is a pain to use.

 

[marvinminor]

How'd you make out:confused3:

No bent blades, no bent crankshaft, no stuck blades. Shakes and shimmies just the same. Does have a stumpjumper that the blades are attached to.

 

[whistlepig]

Make sure the stump jumper isn't bent. Measure from the tip of the blade to a concrete floor on both blades. I've bent a stump jumper or two in my time.