L3130 Front Axle Leak

dangier_VA · Apr 11, 2009

I noticed an oil leak on the RF wheel this week while using my 3130 moving logs (might of overloaded it with the LA723 loader). I bought the tractor new and tend to push it when working it (isn't that what it's for?). It has 560 hours on the clock. For those that have replaced the front axle case seal already, I have a few questions. The bottom cap (plug) looks like it is just a tin cap with o-rings. Does it just pry out and get replaced or can it be reused? It doesn't appear to have threads or a means to unscrew. I plan to check the spindle bearings and replace if needed while I am in there. With the bearings immersed in oil, is it likely they are worn at 560 hours? I do have the Kubota exploded diagram and parts list. Also know about keeping the shims in the right place.
Thanks in advance.
David

dangier_VA · Apr 22, 2009

Wow! 145 reads and no response. With the number of L3130's out there would be some feedback (other than the couple of threads that are 2-4 years old). I guess I am the only one with a current problem with the front axle seals... Looks like I am going to have to wing it. One can bet that when I do fix it, I will post the information for everyone to use.
David

intel · Apr 22, 2009

On my kioti DK 45 that bottom cap has a big snap ring and then it is pried out. If you are careful you can reuse with a little silicon, but if it is not to much you could replace it. When my right front started leaking it was the floating seal that was crack.

rbargeron · May 5, 2009

Hi David

Here's one recent thread about L-series front axle leaks. It has links to others with more info.

The front axle and gear cases are nearly identical over a wide range of L-series machines starting with the Grand L's of the '90s and continuing thru the L--30's and even the L35 TLB. Kubota redesigned the seals and I think the incidence of failure is much lower now - I'm guessing the reason there aren't many responses to you post is that L--30s are not experiencing leaks as often as the earlier tractors. Also, even though it's a repair situation, it is a Kubota-specific issue so it's more likely to appear under "Kubota Owning & Operating" -

dangier_VA · May 7, 2009

Many thanks to rbargeron for the technical information. The leak is minor at this point and I check it and refill when used. Current issue is the L225 (main lawn mower) has destroyed a water pump bearing and needs to be rebuilt. Got it before the fan contacted the radiator. Parts on order from Messicks.
David

slowzuki · May 7, 2009

The seals likely weren't damaged from overloading, likely some dirt or twine/wire got in there and tore it up.

It is unlikely the bearings are bad, unless you got water in the spot where the seal leaks. Do you operate the tractor in deep water?

dangier_VA · May 7, 2009

Tractor has not been in water high enough to come close to the seal area. Any permanent high water in my area has soft bottom and likely would cover the tractor if it should get in. Try my best not to get close. Makes sense about dirt or grit getting in the seal. I did notice the leak when I was carrying pine logs on the front forks. May have already been there. Have not ordered the seal parts yet (OBE).
David

randy Wright · Jun 15, 2009

Kubota L4330 Well guess what? I just blew a seal as well.... maybe its the age of the units? about 500 hours on unit.
I operate in mud wet conditions and woods clearing (rough on unit).

I noticed a leak on inside of wheel front left. I was pushing some brush away and it started clunking badly before I could get it back to the shed. I nursed it in... hope I didnt' ruin more stuff!. Have no clue have not taken off the wheel yet. Came here for info. Still haven't searched completely but will post this incase someone can fill me on on this repair! or where someone has already explained it.

Thanks
Randy in Oviedo

dangier_VA · Jun 19, 2009

Randy,
I have been nursing my LF axle leak for the moment (not too bad), and checking the fluid every week or so. Do a search on Front Axle leak and you should find some information. Klunking? New one on me. Is it in the front axle area? Let us know how it turns out.

TODD G · Aug 20, 2009

This is a common leak under heavy use situations, the best thing to do is keep in 2 whell drive as much as possible, that will take the stress off the front end. And the bottom cap just prys out and will need to be replaced, most kubota dealers will have all the parts in stock, if your local dealer doesn't you can contact me at parts@parsonstractor.com for parts or any other info