New 4330 Hst need more power

[_RaT_]

As I understand, the pressure is regulated at the access panel under the seat. I don't need to tell you, the difference in build between a LA 853 and JD 460 should be more then obvious. For that matter, between a LA 723 and JD 430. Do know that we are also talking about considerably different dump/curl angles. Nonetheless, do a simple check yourself. Get a male quick connect to the front curl or dump quick coupler, a 5000 PSI gauge and test the pressure yourself. If it's off, adding a shim or two should do the trick as I am told. I have mine set at +/- 2600 PSI within a few PSI. It will pick up a JD 4310, 430 loader and all. In fact, it may well hurl it clean over to the RockyRidges of Oklahoma from the gracefull foothills of Northern California.
I think of OK as flat. Not that there is anything wrong with that.

 

[Dargo]

I just got my tractor back from the dealer and he told me that the FEL operates just fine and the power is normal. He suggested putting larger cylinders on it etc. if I wanted more power. /forums/images/graemlins/mad.gif I stopped by the JD dealer on the way back home. They are coming out with a cab on their compact series 47xx series tractors next year. If my Kubota is putting out all it is designed for, I'm done with it as soon as JD comes out with a cab in a similar sized tractor. In the mean while, I'll research more on what you are talking about on adjusting the pump. The dealer sure had positively no interest in such. I hate to give up on Kubota when I like them, but if they are that weak, I really don't want one. Any tractor I've ever been on will pick up it's front end with a FEL at an idle. That is nothing. If it wouldn't have been able to do that, I would have never taken it home. It's just in using the loader to load dirt it really falls short of what I've been used to with tractors with less HP. Hopefully it can be fixed; that is if there is anything wrong with it. The dealer says it is perfectly normal!

 

[JimR]

He's blowing you off. What was the pressure on your pump? Nobody would buy a tractor w/FEL if they didn't perform right. As far as changing out the lift cylinders. That will cure your problem. But why should you have to pay for this. It is their mistake and not yours. If Kubota built them with too small lift cylinders it had to be to cut the cost.

 

[_RaT_]

Something is just no right here. It's hard to say what it is. Your pump is in all likelyhood fine, it's pressure is determined by the hydraulic relief valve. If all is as your dealer suggests and your convinced that this tractor cannot do what you want, I suggest you consider making sure that it stays very clean and sell it. When Deere comes out with what you know to be what you want, jump on it. As has been discussed, we can all easily lift the front of our tractors up. I would say either your tractor is incredibly heavier then ours, or you have an issue. For a few bucks, you can get the gauge and male coupler to check your pressure. If it's not up to specs, show the dealer or as would be my preference, I do it myself. My L3830 is almost the same size as your L4330 with the exception of a larger loader. The LA 853 has noticeably larger cylinders. When you try to lift your tractor off the ground I'm assuming the bucket is tilted down while you raise the front (drop) the loader. I would think it would go without saying that the loader with the bucket level will not pick up the front end much more then a few inches as it is bottomed out.

 

[Patk]

Also, if you are trying to lift the tractor by dumping the bucket( control stick right ) be sure to go beyond the detent stop to use full force to the cylinders. (This assumes you have the 4-way control valve not the 3-way control). From center to the detent stop, the bucket dump circuit is in 'regen' mode where-in pressure is applied to both sides of the cylinder. Works ok when the bucket is in the air and the load in the bucket helps to dump it, but if you want the full force of the cylinders applied to dump the bucket down, you push the stick beyond the detent (push hard...it's there).

I had to put a guage inline to check the pressure on my new L3130 w/LA723 loader and found it at ~2400 psi at ~2000 RPM. I added a small shim (a small thin washer) under the spring of the relief valve to bump the pressure up to ~2600 PSI.

My gut tells me something is not 'normal' with the FEL you've got. My FEL (with Quick attach) can get the front tractor off the ground just fine and the L3130 is only ~300lbs difference if that. The LA853 has 300lbs more lift anyway.

With the bucket mid-air, roll it with bucket cutting edge straight down. Lower the boom and you should easily be able raise the front wheels off the ground.

If the bucket is flat on the ground, the boom will only go a few inches lower, then jam the stick full right (beyond the detent stop) and the dump circuit should pull you forward (keep your feet off the breaks and rear implement up) while raising the front end.

Hope it helps.

 

[a27h]

First i woud like to thank everyone for the responces /forums/images/graemlins/cool.gif
I called the dealer to explain they think it may be just the fact
that the bucket is heavier + the quick attach extention
or maybe a quick coupler
i told him i would feel alot better with a pressure check
and have a tech check over the machine
yes i checked the fluid & the bucket was tilted down when i originally tried to lift the tractor
I did not buy this tractor locally the dealer is over two hours
away , I did save some money & dident have to deal with the local arrogance / im sure my dealer will take care of this
I just hope that it does have more power
Thanks A27H

 

[JerryG]

This may seem like a silly or even stupid question, but did you have the tractor in neutral or to where it could roll? If it isn't, the loader has to try to drag the whole weight of the tractor.

 

[_RaT_]

Jerry, you bring up a valid point, but I have found that even on my smaller loader, a LA 723 can easily drag the rear wheels as needed to accomodate the tractors changed geometry as the loader is raised or bucket curled.