The underside of my newer Kubota

[mx842]

I'm wondering if anyone knows of some kind of skid pan for a L 3301. I just posted a post to a thread here talking about hauling tractors to the shop. I just went out to do some bush hogging and when I stepped up on the tractor, I noticed oil dripping under the tractor. After looking closer I see every line that goes to the Hst filter bracket along with the line that goes into the transmission is leaking. I'm thinking that while I was bush hogging last time something must have gotten up there and pushed on those lines. None of the lines look bent up or shows any signs of damage but they are all leaking.
I have always been careful when working with the tractor because all those filter brackets and other parts are right out there wide open just asking to get broken off. I love my tractor don't get me wrong I'm just wondering why they would mount something so fragile right out there in the open like that. Looking at it there are a lot of other stuff under there that is vulnerable to the elements also. If nothing is available, I guess I could fab up some brackets to cover the worst places.

 

[BleedingOrange]

If it were mine, I would get under there and find the root cause of your leaks. If you are lucky, it might just be loose fittings. I cann,t image the hoses have been damaged enough to leak. If it is loose fittings, snug them up and wait until all the leaks are stopped before worrying about adding protection.

 

[mx842]

If it were mine, I would get under there and find the root cause of your leaks. If you are lucky, it might just be loose fittings. I cann,t image the hoses have been damaged enough to leak. If it is loose fittings, snug them up and wait until all the leaks are stopped before worrying about adding protection.

I have looked at it and there is no obvious damage, but they are all leaking. I called Land & Coats, and they sent me some o rings. There are 2 o rings at each connection, but they only sent me 5. All the retainer bolts were tight. What a pain it is to get those lines apart because those lines are steel and have no flex in them. I tried unbolting the filter bracket to make it easier to work with but even with the bracket unbolted it still seems impossible to get those lines back to where they need to be and then tightened up. It looks to me like that where those connections are placed and how tight it is in there it would have been better to have rubber hydraulic lines that will flex a little. I did replace the 5 that they sent me but now they all leak worse than they did before.
The mechanic is supposed to come by Mon or Tues to look at it, hopefully he can figure out how to fix it.

 

[tacticalturnip]

Do these folks have what you need?

 

[dieselscout80]

I went through this on a friend’s L3301 and no matter what replace all six of the o-rings cause if not it will still leak and use Kubota o-rings. We tried generic ones and they didn’t work.

We replaced one of the lines but I wonder if with six Kubota brand o-rings if it would have sealed up.

The engineer the thought up that set of lines need a trip to the wood shed.

L3301 Leak at Lines to Transmission Filter

A friend has a L3301 with the hydrostatic transmission. The two lines with three connections shown in the attached pictures are leaking where the bolts hold them to the filter base/housing and the transmission housing. It looks like to me that the fix would be to replace the O-rings is that...

www.tractorbynet.com

 

[Fxfymn413]

I added my own skid plates to my L4660 when I first got it. I used 1/4 inch plate and fabbed up what I needed myself.

I did screw the pooch on one plate by making it impossible to remove one hydraulic line without removing the plate. If I had been more careful I cold have designed it so the line could be removed with the plate in place.

I occasionally operate in the woods while gathering firewood and those lines hanging down just looked like snag catchers to me.

 

[mx842]

I went through this on a friend’s L3301 and no matter what replace all six of the o-rings cause if not it will still leak and use Kubota o-rings. We tried generic ones and they didn’t work.

We replaced one of the lines but I wonder if with six Kubota brand o-rings if it would have sealed up.

The engineer the thought up that set of lines need a trip to the wood shed.

L3301 Leak at Lines to Transmission Filter

A friend has a L3301 with the hydrostatic transmission. The two lines with three connections shown in the attached pictures are leaking where the bolts hold them to the filter base/housing and the transmission housing. It looks like to me that the fix would be to replace the O-rings is that...

www.tractorbynet.com

Just wondering, was there any obvious damage to any of the lines? I've looked at this about 20 times in different light situations, and I can't see a mark on any of them anywhere. It just seems strange that they would all start to leak at the same time as that. I've been a mechanic for a long time and have been known to replace some almost impossible parts on equipment, but I just don't see how you could get all these lines in position and bolted up. Yeah, and I'm with you on the engineer that came up with this crap shot. He must have drawn this up early one Monday morning after a long weekend of hot babes and moon shine shooters because his mind was differently out of commission when he thought this up.

 

[mx842]

I added my own skid plates to my L4660 when I first got it. I used 1/4 inch plate and fabbed up what I needed myself.

I did screw the pooch on one plate by making it impossible to remove one hydraulic line without removing the plate. If I had been more careful I cold have designed it so the line could be removed with the plate in place.

I occasionally operate in the woods while gathering firewood and those lines hanging down just looked like snag catchers to me.

Yeah, I looked at this the day they bought it to the farm. I was thinking it would just be a matter of time before I would break something off. I just never could find the time to fab up something. I'll probably have to find the time once I ever get this thing patched up.

 

[mx842]

Do these folks have what you need?

Thanks, I'll look into this.

 

[dieselscout80]

Just wondering, was there any obvious damage to any of the lines? I've looked at this about 20 times in different light situations, and I can't see a mark on any of them anywhere. It just seems strange that they would all start to leak at the same time as that. I've been a mechanic for a long time and have been known to replace some almost impossible parts on equipment, but I just don't see how you could get all these lines in position and bolted up. Yeah, and I'm with you on the engineer that came up with this crap shot. He must have drawn this up early one Monday morning after a long weekend of hot babes and moon shine shooters because his mind was differently out of commission when he thought this up.

I didn’t see any and decision to replace the line was based on the leakage.

Those lines have to remain in the exact same form as from the factory or they will leak.

If it was mine I would be tempted to tap the bores where the lines go in and replace them with a hose. I might even consider epoxying the fittings in the transmission side to avoid chips from tapping threads.