L3710 Will not Lift Front End

[Suburban Plowboy]

I put two rear remotes on my L3710 HST. It lifts things like logs just like it always did, but it will not raise the tractor's front wheels when I push it down.

What is the most likely problem?

 

[Harry in Ky]

Hard to say. What did you add and how/where did you add it? Something obviously changed if it raised the front end before the addition. More details or a lot of wild guesses come next.

 

[Suburban Plowboy]

I don't have a habit of lifting the front end with the bucket, having little reason to do so, so I am not positive, but I believe it was possible to lift it before I installed the new valves.

I'm going to make sure the fluid is topped off, and I will also go through the air-bleeding procedure I saw somewhere.

 

[Harry in Ky]

In most cases bleeding won't be necessary. What exactly are we doing here? Are you looking for answers concerning a problem you're "not positive" you even have? I don't know about others, but when I have questions about hydraulics, lifting or not lifting as expected I start with a pressure gauge plugged into a coupler somewhere, and see what that tells me.

 

[SPYDERLK]

I don't have a habit of lifting the front end with the bucket, having little reason to do so, so I am not positive, but I believe it was possible to lift it before I installed the new valves.

I'm going to make sure the fluid is topped off, and I will also go through the air-bleeding procedure I saw somewhere.

If youre incidentally holding the brake when trying to lift .. dont.

 

[Shawn T. W.]

When you try to lift the front, are you putting the loader all the way down, and then curling the bucket like you want to dump a load?

The hydraulic system should self-bleed.

 

[Suburban Plowboy]

I did not try to curl the bucket.

I will get back on this tomorrow. I am hoping my bearings and seal will be here by then.

I don't hold the brake. I can't recall ever using the brake. On this farm, I never need it.

 

[nytryder]

I have a 3901 L doing the same thing,. dealership says hydraulic pump is bad and complete system must be replaced, The cost is $20,000. tractor has 160 hrs on the clock. I am looking for another tractor. The cost for my tractor new was $20.000.

 

[Suburban Plowboy]

That's horrible. I can't believe that's an honest estimate, but then I don't repair tractors.

My loader only has problems on the way down, and it didn't start until I installed the rear remotes, so I think my pump is fine.

 

[nytryder]

My hyd oil has always ran VERY hot. I'm still waiting on a decision from K-Tek insurance. praying they will cover it. If not I'm stuck with a non functioning unit???

 

[SPYDERLK]

I have a 3901 L doing the same thing,. dealership says hydraulic pump is bad and complete system must be replaced, The cost is $20,000. tractor has 160 hrs on the clock. I am looking for another tractor. The cost for my tractor new was $20.000.

I think one zero is misplaced.

 

[tacticalturnip]

I think one zero is misplaced.

One would hope, for sure.

 

[nytryder]

I think one zero is misplaced.

I wish it was as simple as that. do some checking and get back to me. If you can find a better price please let me know. I am patiently awaiting your info...

 

[ptsg]

I have a 3901 L doing the same thing,. dealership says hydraulic pump is bad and complete system must be replaced, The cost is $20,000. tractor has 160 hrs on the clock. I am looking for another tractor. The cost for my tractor new was $20.000.

Please find another dealer that is not trying to scam you.

Highly unlikely that you need a new pump, but even if you did, that's like around $1300 or so. Kubota L3901HST (4WD TRA W/HYD TRANS/FOLD ROPS) Parts Diagrams

 

[Harry in Ky]

My hyd oil has always ran VERY hot. I'm still waiting on a decision from K-Tek insurance. praying they will cover it. If not I'm stuck with a non functioning unit???

Hydraulic oil always ran VERY hot. Most people see that as a valve stuck open(or closed) somewhere that shouldn't be. Lots of restriction to oil flow where there shouldn't be. Those are the sort of things that destroy hydraulic pumps and can certainly do so in matter of hours if left unchecked. What do the mechanics have to say about probable cause? Have they found anything that might account for a pump failure? Have they even looked?

Good luck with insurance on that. Like claiming warranty on a dry clutch. A lot of people try, few succeed.

 

[SPYDERLK]

I wish it was as simple as that. do some checking and get back to me. If you can find a better price please let me know. I am patiently awaiting your info...

Are you the original owner? 160hrs?! It sounds like your tractor was delivered with a latent defect. Sue Kubota.

 

[TractorGunn]

I put two rear remotes on my L3710 HST. It lifts things like logs just like it always did, but it will not raise the tractor's front wheels when I push it down.

What is the most likely problem?

I know when I need to get my wheels off the ground I have to tilt the lip of the bucket to 90 degrees to the ground, then go straight down to raise the wheels off the ground, otherwise it barely lifts them.

 

[TractorGunn]

I have a 3901 L doing the same thing,. dealership says hydraulic pump is bad and complete system must be replaced, The cost is $20,000. tractor has 160 hrs on the clock. I am looking for another tractor. The cost for my tractor new was $20.000.

Once they sucker someone out of that much money, they're emboldened to take the person for even more.

 

[Suburban Plowboy]

I'm going to feel stupid if I put the bucket back on and the front wheels come off the ground, but I have a feeling that's the problem.

 

[Shawn T. W.]

In Missouri we say "Show Me!"

As a kid growing up in Vermont we use to say "try it, you may like it" ...

Either way I've found it's the best way to learn!