Help me Shift L3710 out of 4WD

Mr Haney

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L3710, ZD326S
May 23, 2022
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FL
Someone tell me the trick to taking an L3701 HST out of 4-wheel drive. I find it nearly impossible. I tried moving it to sandy ground, and I also tried jiggling the HST pedal. Really annoying. I used 4WD today, and now it's stuck.
 

Mr Haney

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L3710, ZD326S
May 23, 2022
358
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FL
Web says to lift the front end of the tractor with the loader. My front end won't leave the ground, but the loader lifts just fine. I put two rear remotes on it recently, so I'm wondering if something is amiss.
 

85Hokie

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You tilted the bucket all the way down? How about the right most detent on the stick - tried that?
 

Mr Haney

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L3710, ZD326S
May 23, 2022
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I had a debris fork on it, turned all the way down. I didn't think about uncurling it.

I have read that air can get in and cause this.
 

NCL4701

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You can try wiggling the front wheels back and forth a bit with the steering wheel as you try to get it out of 4WD. That sometimes works.

Lifting the front tires off the ground with the loader is the best way to do it. That always works. I did read the part about you not being able to lift the front end with the loader for some reason.
 

Mr Haney

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L3710, ZD326S
May 23, 2022
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FL
I have to jack it to put new stuff in the left axle, so I guess I can use the jack to free the wheels. The parts are supposed to arrive tonight.

I saw a procedure for getting air out of the hydraulic system, so I will give that a shot.

I will also make sure the fluid is topped off, although I don't know if that would affect the hydraulics in one direction and not the other.
 

RCW

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I have to jack it to put new stuff in the left axle, so I guess I can use the jack to free the wheels. The parts are supposed to arrive tonight.

I saw a procedure for getting air out of the hydraulic system, so I will give that a shot.

I will also make sure the fluid is topped off, although I don't know if that would affect the hydraulics in one direction and not the other.
Just my own opinion, but I wouldn’t be too worried about bleeding air from the hydraulic system.

Pretty much takes care of itself.

If it doesn’t, you have more issues than some air in the system….
 
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RMS

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If I don't have my bucket on I turn my wheels all the way to the left and that let's me get out of 4 wheel.
 
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D2Cat

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Number two is right on. Go backwards a bit then forward, go back again and try to shift it out of 4x4, and I depress the clutch.
 
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Mr Haney

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L3710, ZD326S
May 23, 2022
358
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FL
I don't know why they gave me a tiny lever way down by my foot, given that they knew this machine was hard to get out of 4WD. I should look at it and see how hard it would be to make a better lever.
 

RCW

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I don't know why they gave me a tiny lever way down by my foot, given that they knew this machine was hard to get out of 4WD. I should look at it and see how hard it would be to make a better lever.
Gosh - don’t know a L3710, but that sounds more like a differential lock than a 4WD lever……

Any 2/4WD shifter levers I know of aren’t near your feet…😳

Any I’ve used have been on/near a fender for hand control.
 

PoTreeBoy

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Gosh - don’t know a L3710, but that sounds more like a differential lock than a 4WD lever……

Any 2/4WD shifter levers I know of aren’t near your feet…😳

Any I’ve used have been on/near a fender for hand control.
The L35 control is by my left foot, similar to the diff lock on the right except it has a knob. Up=engage, down=disengage. (Soon to have engaged indicator on the instrument panel, I hope).

@Mr Haney, I usually engage and disengage mine by putting slight pressure on it while moving slowly until it slips in or out. Maybe turn right or left a little. If it doesn't work in forward, try reverse. Are your tires OEM?
 

Mr Haney

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L3710, ZD326S
May 23, 2022
358
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FL
The rear tires are turf tires. I got the tractor used. I am not sure why the original owner chose those tires. The original front tires looked like car tires. I replaced them with skid steer tires.
 

Russell King

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@Mr Haney do you understand that the ratio of circumferences front to rear tires is important to a 4WD tractor? Did you match that ratio (from original tire sizes) or just use whatever size tires you wanted to?
 
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PoTreeBoy

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The rear tires are turf tires. I got the tractor used. I am not sure why the original owner chose those tires. The original front tires looked like car tires. I replaced them with skid steer tires.
The rear to front ratio on the L35 is 1.522. You want the fronts a few% faster.
 

North Idaho Wolfman

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The rear tires are turf tires. I got the tractor used. I am not sure why the original owner chose those tires. The original front tires looked like car tires. I replaced them with skid steer tires.
I'll bet the ratio is wrong that's why your having a tough time with it.
 

Mr Haney

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Equipment
L3710, ZD326S
May 23, 2022
358
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FL
It was like this with the old tires, though, and it's a common problem, not just with Kubota, but with other manufacturers.

I don't have any idea whether the original tires were on the tractor from the factory or the dealer mounted them at the owner's request. From other dealings with this local company, I know they are not very sharp, so it would not surprise me to learn they put the wrong tires on the tractor or even that they put oatmeal in the differential. Personally, I would not have gone with these relatively slick tires. I have spun the rear tires more than once.

They lost their franchise a long time ago.

I did ask for advice on the tires before I switched, but Internet advice is often worth what you pay for it.

What I have read elsewhere is not consistent with what I'm reading here. I have read that the tires have different angular velocities regardless of the tire size, and that the transmission binds up because of it, creating friction between parts that ordinarily slide by each other. This comes from forum gossip, however, not Kubota sources.

The manual says the front tires will wear faster on pavement if 4WD is engaged. To me, that suggests they expect the tires to turn at different angular velocities, causing the front tires to slip a little, rubbing off material. If that is true, you would expect transmission parts to be pressed against each other when the tractor isn't running.

The manual doesn't provide much in the way of guidance. The applicable section is very brief.

It's confusing, because some sources say to shift out of 4WD on loose soil to allow the tires to move, and others say it's very important to do it on pavement. Loose soil makes more sense.

In case anyone is interested, the manual calls the lever the "front-wheel drive" lever. I call it 4WD because that's what I'm used to seeing other people call it.

I have not done anything with the tractor since Saturday. If the parts I ordered stop bouncing around the United States and make it to my door, I will get back on this. They have been to Memphis twice so far.

I will try the suggestions people have provided here.

This is not a crisis. I have managed to shift the lever before, and I'll manage it again. It's just a matter of finding out what the tractor wants me to do.
 

Mr Haney

Active member

Equipment
L3710, ZD326S
May 23, 2022
358
87
28
FL
I may as well post information that could help others. Here's a short video from a dealer. He's lucky to have that lever beside his seat. I have to engage the clutch while bending way over to reach my lever.