Is my bush hog dead?

/ Is my bush hog dead? #21  
Bearings have failed. Rebuild it.

The one single picture I saw showing the roller bearings in their cage.. they looked intact. No doubt worn, but I see gear profile failure, from wear, not bearing failure.

If it spins smoothly, even if the seal is gone.. he may well get YEARS of use out of the box running it on thinned grease.
 
/ Is my bush hog dead? #22  
I would say get all the chunks of gear metal out, fill it with moly grease and put it back together. After fully assembled, top off with about 4 oz of gear oil. Run it till the gears are stripped out, then just buy a complete gear box to replace it. You can find them for as little as $100 depending on HP rating.
 
/ Is my bush hog dead? #23  
/ Is my bush hog dead? #24  
The one single picture I saw showing the roller bearings in their cage.. they looked intact. No doubt worn, but I see gear profile failure, from wear, not bearing failure.

If it spins smoothly, even if the seal is gone.. he may well get YEARS of use out of the box running it on thinned grease.
Difficult to tell from the picture, but it still looks to me like something was rubbing that case, and damage to the out edges of the gear in the first picture like the lower bearing is out.
 
/ Is my bush hog dead? #25  

cornhead grease is pretty expensive.

You can get 0 grease from a snapper / Stens dealer for 8$ a quart... that's pretty expensive too.

OR.. since this is a JUNK mower, you can use cheapy 1.50$ a tube #2 gun grease and a splash of gear oil.

This ain't a corn header he's repairing. it's a JUNK mower he wan't to get another year out of.

Heck walmart ( in some places sell NLGI 1 or 1.5 tubes as well ).

I personally wouldn't go 00. 0 would be the thinnest. He likely has NO seal at all. as in, a 1/16" GAP where a seal lip would be. thinned #2 gun greas for a couple bucks is a GOOD solution here. not fancy header grease that can cost 3+$ per tube.

You kinda have to have had experience working on and running old farm junk like this to have good perspective on what's a good bandaid repair, and what's throwing money into a hole.

I've got an old servis/rhino HD 6' mower like this. came free, needed welding at the tail wheel. box was bone dry , but clean when I got it.

bearings were ok. ( not perfect ), but ok.

you could watch 85-140 run out.

I DO have 0 and 00 grease for steering boxes on hand, again, 8$ a quart for 00, and the tubes of cornhead grease cost me just over 3$ a tube... no way I was putting those in.

cheap 1.25? amber grease tubes from walmart, plus whatever 85-14 that was staying pooled ended up making a nice slumping lube that didn't migrate too much.

Box had a vented pipe plug for fill, and a 1/4" plug for level check, I replaced the level check with a grease plug, and she gets a couple shots of gun grease a year. I believe i've got 7 ys on that free mower.

I've seen old farmals with axle seals that weep, and the usual fix was to push a whole tube of gun grease into the rear compartment to make almost a farm yard thixotropic formulation. IE.. while spinning it's liquid like a thick gear oil, when it stops moving it gels over like a grease with surface tension and defined boundry layer.

There's an art and a science to working with and on junk. ;)
 
/ Is my bush hog dead?
  • Thread Starter
#26  
UPDATE
so I took it apart, found a lot of wire and string wrapped round the axle that goes down to the cutting blades, fixed all that, filled it full of grease, put it back together. Everything is meshing fine but there is a lot of rocking in the axle that goes down to the cutting blades. A lot. I can't see what is keeping it straight or rather what is missing that used to keep it straight.

I haven't really spent any money on it yet other than grease and some extra tools. Is this fixable? If I take off the cutting blades and stump jumper will I be able to see the problem and fix it?

Pete
 
/ Is my bush hog dead? #27  
Difficult to tell from the picture, but it still looks to me like something was rubbing that case, and damage to the out edges of the gear in the first picture like the lower bearing is out.
Like I said before I still believe the lower bearing is out.
And from what you just described I believe it even more.
 
/ Is my bush hog dead? #29  
I would say get all the chunks of gear metal out, fill it with moly grease and put it back together. After fully assembled, top off with about 4 oz of gear oil. Run it till the gears are stripped out, then just buy a complete gear box to replace it. You can find them for as little as $100 depending on HP rating.

Don't spend a bunch of money and time on this crapped out gearbox. Do as Gary Fowler suggested above. My dad has a cutter that's had a grease zerk in it since before I was born. I'll be 45 this year.
 
/ Is my bush hog dead? #30  
I concur. From this evidence, the gearbox output shaft bearing is surely shot. Considering the trouble and cost of finding an exact replacement bearing (and seal), AND the fact that there is also significant wear/damage to the gears, your lowest-cost and highest satisfaction fix is to just source a complete replacement gearbox to fit.
 
/ Is my bush hog dead? #31  
Yup, if it is rocking, that's a pretty good indication lower bearing is gone.

If the housing was intact, and the bearing and lower seal were 15$ maybee.. I'd put them in, assuming lower shaft wasn't called at bearing or seal area. If yes, bolt a new or good used box on.
 

Marketplace Items

2017 P.J. Deck Over Trailer, VIN # 4P5F82021H1265098 (A65563)
2017 P.J. Deck...
2023 Chevrolet Express 2500 Cargo Van (A61573)
2023 Chevrolet...
Loader Brackets (A65640)
Loader Brackets...
Landhonor SAD-12-23C Skid Steer Mount Auger (A62679)
Landhonor...
1999 Sterling Dump Truck (A66285)
1999 Sterling Dump...
Brady 512 Feed Wagon (A66408)
Brady 512 Feed...
 
Top