Is my new tractor damaged?

/ Is my new tractor damaged? #1  

redrocketship

New member
Joined
Apr 7, 2013
Messages
12
Location
Murfreesboro, Tn
Tractor
Kubota MX5100
I have a MX5100 HST 4wd that only has about 100 hours on it. The other day my boy used the tractor and put it in High gear and drove around for a while (without permission mind you). Anyway, he said that when he would go up a rise, the tractor would slow down so he pushed the pedal down further and he said it was like a clutch was slipping. He said a couple of times it almost stopped. My question is, did he do any damage to the HST system? I used it yesterday and it seems to be making more noise than it use too. Is there any adjustments or anything I need to check?

I've been worried sick ever since this happened. :(
 
/ Is my new tractor damaged? #2  
You should be OK. Just check the fluid levels.
Guess I would be keeping the keys in my pocket.
 
/ Is my new tractor damaged? #3  
I wouldn't sweat it. In high gear, it just didn't have the power to go up the hill. High gear on my B3030 is pretty much good for only going down hill and on the level--and mainly with an empty loader.
 
/ Is my new tractor damaged? #4  
"the tractor would slow down so he pushed the pedal down further"

You're probably fine, just give the boy lessons on how the HST works. :thumbsup:
 
/ Is my new tractor damaged? #5  
Its the inherent design of HST, you must lighten the pedal when you loose forward momentum to maintain drive, or put it low.
The petal is not like a car, its a hydraulic valve, that is opened and closed while RPM is constant, the more fluid that is released, the faster it will go, but once the inertia is lost, it will not do any better to add more fluid... less is more.
I'm no professional on HST, but have had one for 10 years, and its the way you have to think..

Don't sweat it, we have all been there, so now you know to put it in low next time you attempt the same hill, you will not notice it at all then..

Relax, your new tractor is fine.. hide the keys!
 
/ Is my new tractor damaged? #6  
I have a MX5100 HST 4wd that only has about 100 hours on it. The other day my boy used the tractor and put it in High gear and drove around for a while (without permission mind you). Anyway, he said that when he would go up a rise, the tractor would slow down so he pushed the pedal down further and he said it was like a clutch was slipping. He said a couple of times it almost stopped. My question is, did he do any damage to the HST system? I used it yesterday and it seems to be making more noise than it use too. Is there any adjustments or anything I need to check?

I've been worried sick ever since this happened. :(

How long did this take place? It should be fine unless he overheated the hydro fluid.

If junior is gonna operate the tractor he needs some training.
 
/ Is my new tractor damaged? #7  
No, no damage, the worse that can happen is the Hydrostat relief valve will open when it is pushing up against a load. You don't go up hills in HI, and of course you don't press down more on the pedal when it bogs down, you let off, but you can tell him all of that. You can encounter something similiar by putting the transmission in HI range, and push up against a dirt or gravel pile with the loader, the hydrostat relief valve will open. Of course you don't want to stay like that all day, as the fluid will heat up, but just attempting to take a steep hill in HI is not going to break anything.
 
/ Is my new tractor damaged? #8  
Just out of curiosity, how old is your son? I have a near-three-year-old, and I think I am in for a similar story before too long. Just wondering how long I've got.
 
/ Is my new tractor damaged? #9  
My son inlaw will sometimes use my tractor when I'm not here. So I try to leave it in mid range when I'm done.
 
/ Is my new tractor damaged? #10  
I think you should sell me the tractor really cheap, then you won't have to worry about any possible damage.
 
/ Is my new tractor damaged? #12  
Give him some tractor driving lessons and both he and the tractor will be better off.
 
/ Is my new tractor damaged? #13  
No matter how I am using my HST or how I plan to use it next I always park it with the Range selector in Low and 2wd. I also don't engage the **** parking brake. If it had a light or alarm I would, but I have left it on myself enough to have learned better. Box blade and loader down though.
 
/ Is my new tractor damaged? #14  
Give him some tractor driving lessons and both he and the tractor will be better off.

This ^ :thumbsup:

As a child I can confess (now) to having driven the tractor around a bit. There werent any keys in those days:)
 
/ Is my new tractor damaged? #15  
Not familiar with the MX5100 but if it is like a 40 or 60 series, the ECU senses engine speed and pump pressure and destrokes the pump while maintaining engine speed. Unless something unusual happens the HP reliefs only prevent damaging spikes when the swash plate cannot react quickly enough. Climbing a steep hill in H, for example, will result in the engine maintaining speed while the swash plate destrokes and if steep enough, will come to a stop. Lesser hydros do send the oil over relief creating heat but will also drag down the engine. Your description of acting like a clutch is slipping sounds very much like a pump destroking because you demand more power, the engine maintains speed, but the machine slows. The ECU on the 40 and 60 will also shift the motor down to low speed to maintain engine speed if required. If you have a workshop manual for your tractor there are extensive explanations of this operation under the transmission section. Once again my book only covers my 40 and I assume the 60 is similar, but the MX5100 being an economy version may have a simpler control.
 
/ Is my new tractor damaged? #16  
This ^ :thumbsup:

As a child I can confess (now) to having driven the tractor around a bit. There werent any keys in those days:)

I sold my keyless tractor shortly before I got the Kioti. They were a pain in the wrist IF the timing was set too high.:eek:
 
/ Is my new tractor damaged? #17  
I park mine with the PTO engaged. That way someone who isn't familiar with these tractors can't start it.
 
/ Is my new tractor damaged?
  • Thread Starter
#19  
Thanks for the replies, I feel better now. Don't worry, keys are hidden and he got a tongue lashing.
 
/ Is my new tractor damaged? #20  
I think you should keep both sets of keys in your pocket. End of problem.

Great idea but that puts the burden on you and you aren't the problem. The boy is.



Give him some tractor driving lessons and both he and the tractor will be better off.

He's not mature enough since he already made a series of bad decisions and poor judgment. While he didn't hurt the tractor, his lack of maturity, inexperience and poor judgment could, on a bad day, just as easily get him killed. No tractor for you (right now).



I park mine with the PTO engaged. That way someone who isn't familiar with these tractors can't start it.

That's a great security feature that I never thought of. It's my new go-to plan to aid security.
 

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