B2910 front wheel snapped off!

[hosspuller]

I have no idea! What's RTV? I have never done anything like this and was hoping some one could tell me what to expect, if I need any special tools and how to go about it.

RTV = "Room Temperature Vulcanizing" also known as silicon sealant :laughing:

 

[kco]

Either it is a design flaw or we are beating up our tractors , I will be a little more careful from here on out.

Good tip, and a good reminder to consider how we can magnify stress to a machine depending how we use it.

As mentioned before in this thread, I think the main cause was pulling in reverse. And if pulling from a raised bucket it transfers even more stress to the front end.

 

[chopped]

http://www.permatex.com/products/au...matex_Hi-Temp_RTV_Silicone_Gasket_Sealant.htm


How to Use RTV Sealant | eHow.com

 

[dlabrie]

http://www.permatex.com/products/au...matex_Hi-Temp_RTV_Silicone_Gasket_Sealant.htm


How to Use RTV Sealant | eHow.com

Thanks for the info.

So, I should use RTV in place of the old gasket or along with the old gasket?

 

[crazyal]

I like to use RTV with a gasket. I think if it was me I would pull the least amount apart in the woods as possible, just block it up so it can't fall, and take the parts back to the garage/ shop to work on. I would clean everything up as best I could. I think I would get the tractor back to the house and then clean the other side up as best as you can to see if it looks like it has cracks. If you don't mind spending the money and/ or the new axle looks stronger I would probably break down and do the other side just so I wouldn't have to do another woods repair.

 

[deminin]

I just spotted this thread. I had a bearing freeze and spin inside the front axle on my B2910 a couple of years ago, and wound up rebuilding it myself....new axle housing, bearings, etc. Luckily, I had the foresight to buy a factory shop manual when I bought the tractor....so I had some good info before I tackled this project.

If I were you, and I couldn't get the tractor back to the house/shop, I would remove the Bevel Gear Case....4 bolts, and an O-ring...and take this assembly back to the shop for a cleanup and rebuild. According to my parts breakdown, it looks like you broke PN 32721-57323. With a parts breakdown, you should be able to replace the broken axle, and then take the assembly back to the tractor for reinstall. Cleanliness will be very important during this job, as any dirt in the assembly will eventually cause further troubles.
This is a substantial repair, and doing it in the woods will be a real job...especially if you drop a part in the dirt, and lose it.
As a final tip, the B2910 had Super UDT in the front axle. Kubota says either SUDT, or 80/90 axle grease can be used. When I got mine rebuilt, I refilled it with 80/90 lube, and some 300 hours later it is still doing good. I don't care for transmission fluid in gears that are subjected to a heavy load....just my personal opinion.

Good Luck!

 

[dlabrie]

I just spotted this thread. I had a bearing freeze and spin inside the front axle on my B2910 a couple of years ago, and wound up rebuilding it myself....new axle housing, bearings, etc. Luckily, I had the foresight to buy a factory shop manual when I bought the tractor....so I had some good info before I tackled this project.

If I were you, and I couldn't get the tractor back to the house/shop, I would remove the Bevel Gear Case....4 bolts, and an O-ring...and take this assembly back to the shop for a cleanup and rebuild. According to my parts breakdown, it looks like you broke PN 32721-57323. With a parts breakdown, you should be able to replace the broken axle, and then take the assembly back to the tractor for reinstall. Cleanliness will be very important during this job, as any dirt in the assembly will eventually cause further troubles.
This is a substantial repair, and doing it in the woods will be a real job...especially if you drop a part in the dirt, and lose it.


As a final tip, the B2910 had Super UDT in the front axle. Kubota says either SUDT, or 80/90 axle grease can be used. When I got mine rebuilt, I refilled it with 80/90 lube, and some 300 hours later it is still doing good. I don't care for transmission fluid in gears that are subjected to a heavy load....just my personal opinion.

Good Luck!

Thanks for the advice. I ordered the FRONT AXLE SHAFT , BOTH BEARINGS, a SEAL AND
A COLLAR SET. That was on Monday, still waiting!

If I take it apart at the Bevel Gear Case, Should I get a new O-ring for the reinstall? The Kubota store is 2hrs round trip. I want to make sure I have everything.

I have always used 80/90 gear oil in the front.

 

[Don87]

Thanks for the advice. I ordered the FRONT AXLE SHAFT , BOTH BEARINGS, a SEAL AND
A COLLAR SET. That was on Monday, still waiting!

If I take it apart at the Bevel Gear Case, Should I get a new O-ring for the reinstall? The Kubota store is 2hrs round trip. I want to make sure I have everything.

I have always used 80/90 gear oil in the front.

It's always best to replace any gaskets or o-rings when rebuilding.
But with that said, your local NAPA, or other auto parts store may be able to fix you up with the o-ring...........I would try there first.

Take the old one with you.

EDIT: And if using RTV sealant on the gasket...............Put on a very light coat, spread with your fingertip, on the gasket..........just enough to see.
Less if metal to metal.

 

[dlabrie]

Thanks for all of the info. You guys are great!. I will take pictures and post my efforts.

 

[hill]

Use the bucket to raise the front end, drive a wooden wedge in between the axle and the frame on the unbroken side, raise bucket and drive tractor out of the woods.

This is sheer genius - thanks much, 638, not sure if I'd have EVER thought to do that in such a pinch. Make a three-wheeler out of it. LoL! Even my wife thought it was clever, and that's sayin' a lot!

Dlabre, don't you just love how this kind of thing seems to always happen in the most difficult location? I've got almost five acres of woods behind my house all overgrown and hasn't seen more than animal traffic in years, maybe forever.
I took my B7800 up into there to brushhog some sort of paths through it and no sooner did I work my way about 100 yards into the worst of it when I had a flat rear tire. A filled tire, natch. I had to lug my farm jack all the way and fight to roll the wheel out of there to get it down to the local tire shop, and then do the whole hike again to be able to retrieve the tractor. I'll likely let those woods stay natural now- I'm too old for that kind of gruntwork.