LA723 loader on L3830 performance?

wantabota · Jul 28, 2004

great a free tractorwish I had that sort of luck

willy1947 · Jul 29, 2004

We will see. Over 60 days and counting...

GeneD14 · Jul 29, 2004

After reading this post I had the dealer check my pressure on the new L4330 before I picked it up last week. The mechanic said it was just over 2900 psi from the factory. He left it set there and I used it over the weekend and "what a powerhouse!" I understand that it may be rough on the seals and cylinders but it sure seems worth it. I lifted a concrete porch and some sections of sidewalk that my old tractor would never have dreamed of. /forums/images/graemlins/wink.gif

_RaT_ · Jul 29, 2004

Gene, I would certainly not be concerned with that pressure. Although on the high side of the recomended, it still is well within the abilities of all the componets. I have found my pressure does not change whether it is just starting out cool or hot from a days use. I would have suspected slightly less pressure with hot fluid. You have a great setup.

willy1947 · Jul 30, 2004

Mine keeps getting worse. I'm very unhappy. The curl feature will barely move the tractor in neutral. /forums/images/graemlins/frown.gif I sure hope it just needs an adjustment.

Is the only way to get a hydraulic gauge (5000 psi) is to order one?

Thanks,
Dave

_RaT_ · Jul 30, 2004

My local Graingers had one in stock. $24 or so.

jmc · Jul 30, 2004

Stop by Cresent Donut then pay a visit to your maintanance department at work.

slowzuki · Jul 30, 2004

Hello, it sounds like more is going on here than the relief pressure. It sounds like your valve may have damaged seals in it and putting pressure to both sides of the cylinder.

Hopefully your dealer will smarten up, that is a bit ridiculous. Surely their accountant is getting after them for their receivables getting over a month?

willy1947 · Aug 26, 2004

They finally came back and picked up my tractor. They have completed the 50 hour service and installed the toothbar. But, it isn't ready to come home yet. /forums/images/graemlins/frown.gif

They said the hydro. pressure, for the loader, was correct, but needed to do a flow check yet. Of course, they can't do that until they get the tool/gauge they ordered /forums/images/graemlins/mad.gif I guess they don't have one of these.

If the flow is correct and pressure is too, I'm going to be dissapointed in the loader of the tractor. I guess I'll just have to live with it though.

No word on the payment plan yet either. They still aren't concerned with it.

Thanks,
Dave

_RaT_ · Aug 26, 2004

"Mine keeps getting worse. I'm very unhappy. The curl feature will barely move the tractor in neutral. I sure hope it just needs an adjustment"

If your tractor is in neutral, you should almost be able to move it by hand, if your loader, specifically the curl on the bucket can't budge the tractor I would think one of two things is going on. Your not in neutral or the loader control valve/hydraulics have an issue. With only 50 hours on this tractor, you've barely got soot on the exhaust pipe. Work it and get more familiar with it. If you still are disappointed, I would think it would be very simple to sell it for about the same you paid and get something else. I too would be disappointed if my loader curl could not back my tractor up when I get it stuck as I frequently do when working near my stream. Odd that you are having this issue when most of us are not. It would be interesting to try it and tell you first hand if it is similar to ours or if indeed it is weak.

jmc · Aug 26, 2004

Seems like if it has proper pressure but low flow, the loader would work but with a slow cycle time. (?) And if there is a flow restriction, wouldn't the loader cycle slowly even without much load on it?

Rick_Morrell · Aug 26, 2004

Dave:

I just bought an L3130 GST w/ LA723 FEL & HD QA bucket. I experienced loader problems very soon after I put it to work. Debris was present in the cylinders as received from the manufacturer, and it ate away at the cylinder pistons causing blow-by. It's now two free oil changes and five free cylinders later, and it looks like the problem has been resolved. You might ask your dealer to inspect the filter for unusually high debris. Just a thought.

Good luck. Problems with a new tractor are very frustrating.

Rick

Ricco · Aug 27, 2004

If your Kubota is under warranty and you adjust the relief valve yourself, please never mention it to your dealer.

Kubota and their dealers will deny warranty on almost any hydraulic failure if they find out that you have done this adjustment yourself.

DCRC · Aug 27, 2004

Some times the only way to prove something is not right to a dealer is to show them the difference by looking at a new model on thier lot. Do they have another one on thier lot, or do you know of another LA723 loader in your area that you could compare to?

_RaT_ · Aug 27, 2004

Great suggestion!

SkyPup · Aug 27, 2004

Whenever you get a brand new tractor and FEL, it is imperative to change out the hydraullic filter within the first 50 hours of use to catch any metal particle contamination, the hydraulic pumps are easily scored if not. Sounds like you had major contamination however and this may not have prevented the cylinder scoring problems you experienced.

Rolando · Aug 27, 2004

Pat,

Can you tell us something about the Anbo Grapple? I went to their web site Anbo Grapple and they look pretty impressive. I need a grapple, so I have been looking at the choices.

How expensive? Does it mount on skid steer hitch or the quick attach? How heavy and what capacity?

willy1947 · Aug 30, 2004

I just got my tractor back. They completed the 50 hour service on it and it had 65 hours on it, so I didn't miss it by much. They verified the pressure was ok and the flowcheck was fine. They have returned it, but want it back to add some shim kit Kubota is sending them.

It seems a little better, but not that much. I guess I wanting too much out of it.

I don't know of anyone who has one on their lot right now. A neighbor of mine had the same issue with his new 3830. I've been meaning to stop and see if he ever got his resolved.

I'll keep everyone posted.

Dave

_RaT_ · Aug 30, 2004

Pat, I now have 300 hours on my L3830 HST. It is just over a year old. The loader has worked well. After having used many tractors over the years and currently still using a NH 2120 and a Kubota L4850 as well as my neighbors little 790, I can tell you that the loader is similar in function to them. The NH 2120 does not have loaded tires and is extremely light on the rear. A load in the bucket will easily send it tilting forward without a boxblade. Even at that, it cannot get the rear off the ground using the bucket tilt circuit as you had mentioned in your original posting. Realize even industrial loaders can rarely go into a pile of material and simply lift out a full heaped bucket, it takes some finesse to break it loose by rolling, curling and lifting. I'm thinking that maybe you may have thought you simply put the bucket in the material and it should just be able to lift it, curl it etc. I think with more fooling around, you may find it actually is doing a great job or perhaps in fact there is an issue that we have yet to learn about.

SkyPup · Aug 30, 2004

Whenever you change out the hydraulic fluid on the tractor (mine is a 3130 GST with LA723 FEL) or the hydraulic filter, be sure to check the large round black magnet in the top of the filter head when you remove it to change out the filter.

The magnet should give you an idea of the amount of metallic debric generated in the hydraulic system as shown by a moderate amount of grey metallic dust fillings stuck to the magnet.

BTW, the round black magnet is on the inside of the outer rubber seal surrounding the inflow ports to the filter. It looks like some kind of rubber gasket if you don't know what it is.

Here it is, it is the round black ring semi-covering the inlet holes: