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Kubota kx057-4 troubles

berry

Member
Joined
Apr 12, 2012
Messages
18
Location
arkansas
Dealer ran the pressures on my machine. They were to spec, Of course. That doesn't mean there isn't a problem. They told me they will be in touch with kubota monday.. What really sux is I'm not making any money with my brand new machine!! Payments don't wait...
 

berry

Member
Joined
Apr 12, 2012
Messages
18
Location
arkansas
Hi all, just wondering if anyone is having dramas with the new kx series excavator. I've got a 2011 kx057-4 which I'm having hydraulic problems with. Basically hydraulics are super slow/weak when using more than one function and attachments ie flail mower rapidly winds down to about half speed every time you you move any other part of the machine. Kubota are very reluctant to admit a problem but just today they have told me that there may be an inherent problem with these new machines and need to get an answer from kubota in japan before they will tell me what the go is.
Has anyone else had issues and were they sorted any faster than the six monthes it's taken me?

Well now my drama story will begin....i thought maybe i didnt get a POS but i guess i did.......As everyone has read i have similar problems to "DGMM" little or no movement when trying to multifunction with my machine, also blade interupts travel very abruptly and blade overrides with little pressure....monday with 114 hours i took my machine to the dealer...Service men are very cool and have done business with for years..tuesday morning i was asked to demonstrate some issues..i thought all was well when i left, they agreed something was wrong...friday afternoon they finished up with pressures and everything was spec...still willing to agree something is wrong, they bumped the pressure a little on one side...since i need my machine, i will be taking it back to the job i bought it for and work it until some factory reps can show up to demonstrate the problems to... :( DGMM, did they have any idea what the inherent problem might be? does the blade on your machine over ride real easy? Does your machine seem to get worse as the day goes on? I use mine every day and log at least 7 -8 hours of machine operating time, digging stumps, covering holes, clearing underbrush and small trees. I have to pile and burn it too,,thats when u really need to multifunction... it is nice to own a 60,000 dollar POS!!!!!!
 

DGMM

Member
Joined
Feb 20, 2012
Messages
19
Location
Australia
I've just spent a week in the big smoke (400ks away!) trying to sort this out. tested new machines at kubota which seem to be no faster than mine. Mabey I'm just looking for it? I think that the guys here have decided that there is nothing wrong, so they arent being very helpful anymore. I realise that there will always be some slowing of other functions but not this much. I caught up with other owners, some who were happy some who were not. I even tried a guys machine who was happy as Larry with it, In my opinion his machine was slow too???
Berry, yeah my blade interfeers with tramming, which, if I understand correctly, it shouldn't. I thought that pump #1 did one track, pump #2 did the other and the auxilery pump operated the blade, shouldnt this mean the blade cant interfeer with tramming?
I dont think mine gets worse I just get more frustrated as the day goes on so I notice it more!!!
 

berry

Member
Joined
Apr 12, 2012
Messages
18
Location
arkansas
I did pick my machine up last night and was able to work it all day.... It was noticeably better....the tech explained to me that the right side was 70 psi below max spec...he did turn it to max,,, He wouldn't give to much more info.....after operating all day I now understand more what is wrong....boom up and down and bucket curl and dump are on one circuit and stick in and out and spin left or right are on another.... boom and bucket were/ are so much slower than stick and turn,,, you can't get smoothe.... With the 70 psi added,,, mine was like a new machine.. Still needs a little more psi though, I think 30 to 50 may get it.. The movements still arent quite equal.... May just have to deal with the blade,, but it shouldn't do what it does. My boom cylinder has a scratch the length of the shaft..it has to be warranted.. I am going to try to get them to turn it up a little more and set the blade over ride a little stiFfer...if I can get that my machine would be nice... DGMM, u may want to see if your pressures are maxed, or just within specs....I never would have believed 70 psi would make that much difference but it did...
 

berry

Member
Joined
Apr 12, 2012
Messages
18
Location
arkansas
Hi all, just wondering if anyone is having dramas with the new kx series excavator. I've got a 2011 kx057-4 which I'm having hydraulic problems with. Basically hydraulics are super slow/weak when using more than one function and attachments ie flail mower rapidly winds down to about half speed every time you you move any other part of the machine. Kubota are very reluctant to admit a problem but just today they have told me that there may be an inherent problem with these new machines and need to get an answer from kubota in japan before they will tell me what the go is.
Has anyone else had issues and were they sorted any faster than the six monthes it's taken me?

Was wondering if u were able to get kubota to tell you what the problem was....150 hours.....with 70 more psi all new fluid and filters.....still having problems with my machine....I now have called the corporate office...will see what they say .......
 

DGMM

Member
Joined
Feb 20, 2012
Messages
19
Location
Australia
I've been meaning to ask how you got on. You've been a bit quiet so I thought it was all good.I'm not getting anywhere with the dealer or Kubota. I,ve now had a lawyer write a letter of demand, to either fix the problem or a full refund. It's a pity it has come to this but what can you do when no one will help. The lawyer thinks they are in breach of some advertising laws & promises.
 

berry

Member
Joined
Apr 12, 2012
Messages
18
Location
arkansas
It seems my machine has developed a personality, sometimes smooth as silk,,,,,, sometimes stick in and out and turret and travel are in high speed while everything else is slow...then you have the all operations slow with no power....I have been messing with the operations and there are times it acts the same at half throttle as it does wide open....then there is the wobble,,sometimes it shakes like a vibrating bed in an old motel.... It also never seems to run at the same RPM...2381 when you start in the morning and later in the day may get as low as 2340....seems strange....I have been waiting a month for a factory rep...still haven't seen one...now the dealer doesn't return my call..... Cooperate office said I would hear back from them by today.... In the mean time the piston on my main cylinder still has an imperfection the length of it......it seems people get their money and don't care....if you don't mind DGMM would you pm me your info machine info and ill do the same we can work together......
 

berry

Member
Joined
Apr 12, 2012
Messages
18
Location
arkansas
Damn shame you spend 60-70k on a machine and the manufacturer does not stand behind there product !!!

You've got that right!!!!! i guess the problem is, everyone doesnt have 60k in cash to pay for the machine out right....since i/we finance the machine and sign a contract, they have u by the nads..... if i was rich i would park this thing in there show room and get me a caterpillar!!!! i hate to say it....May be made of chinese metal, but that 305 is smooth like water skiing on glass....if the kubota would operate correctly, it would be the best mini ex in its class.....built very well!!! bad operation!!! i wonder if our machines were built friday at beer thirty or monday morning after a hard weekend? :) wonder if a hydraulic line got crossed when the plummed it...
 

berry

Member
Joined
Apr 12, 2012
Messages
18
Location
arkansas
i have an update on kubota's response to the problems with my machine... A factory service rep came out to the jobsite on the 24th....he agreed there are problems and they are obvious.... blade is not supposed to interupt travel. all of the motions are supposed to be equal...he says they will fix it....may be a couple things,,pilot control valve not in zero position or nulled, an injector not pulsing maybe electronic problem too.. i dont really know much about it, so im not going to try an lie!!! there is still only one main pump..there are a series of pilot or control valves.. Best i understand is they control pump pressure and where fluid goes and when... and they may not be working correctly...it will be in the shop today.. i will let everyone know how it goes..
 
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bigbob

Well-Known Member
Joined
Dec 19, 2007
Messages
191
Location
Lee,NH
I know a guy who has had an 305 "E" for 2 weeks now. I have not talked with him yet. He had tried out my 305 C CR a month ago and said he was going to get a "D", but an "E" showed up in his door yard!
 

Manatarms

New Member
Joined
Jan 20, 2012
Messages
4
Location
New Jersey
Doesn't the KX057/U55 have 3 pumps? I figure Kubota would have spec'd them with 3 pumps to reduce the likelihood of the symptoms you're describing. If I'm not mistaken the Bobcat E50 has one pump....does it display this behavior too?

-manatarms
 

berry

Member
Joined
Apr 12, 2012
Messages
18
Location
arkansas
to everyone who has been keeping up with this thread, i have been givin a diagnosis...the main pump on my machine is bad...makes pressure but no volume...said all pressures would check out. i wasnt until they put a flow meter on it that the problem showed up.... now for the great news , , there arent any pumps available.... may be a month at least.....no rental coverage, no help from dealer, service manager wakes up in a new world everyday...i am pretty much screwed..kubota wont defer any payments until u have made at least 6 payments,, i have made 2......i bought a brand new machine that was fuct from the factory....nobody seems to think i deserve a new machine! does anyone have any ideas on how to get them to replace the machine???

I the way i understood it was , there was a three pump load sensing system....my rep says there is only one main pump.. do not know for sure so i cant argue..
 

cps

Senior Member
Joined
Jul 13, 2008
Messages
811
Location
Ireland
Occupation
plant mechanic
Hi Berry, im sorry to hear of the problems your having! It make sense that the pump is not producing enough flow, but the fact that there is none available for that length of time is a disgrace!!
I have no real advise to offer, just wanted to voice that i feel your pain! all i can really say is i would be getting a lawyer involved! Its a new machine after all and you DO have rights!

Aiden
 

74inchShovel

Well-Known Member
Joined
Jan 19, 2008
Messages
164
Location
Washington
Let me say in advance I expect some disagreement with the following. Here is how I would handle this- I would have a large sign made, at a sign shop that gives a factual account of what has happened to you. If you own one, make the sign big enough to fit on the side of your dump, or in the back of your pick up. Take excavator, truck and trailer and park legally as close as possible to dealership. Take pictures, with both the dealership and sign in the same shot. Leave it there a day or two. Meanwhile, mail the pictures to the regional rep, the North American rep with a note saying that due to lack of follow up, you were forced to take this drastic action. Also inform them that the pictures are on their way to Japan to the CEO of Kubota, which you should also do. I would demand repair within 2 weeks, or a full refund. What scares me here is when a pump lets go, it can pump metal all through the hydraulic system, so I would do a fluid sample at a independent shop, as the dealership is completely untrustworthy at this point. If the sample comes back bad, anything less than a new machine or a full refund is out of the question. I have gone down this road myself, with a manufacter of irrigation products. Keep your head, speak the truth and apply pressure at the leverage points. What they are doing to you is very wrong.
 

cps

Senior Member
Joined
Jul 13, 2008
Messages
811
Location
Ireland
Occupation
plant mechanic
Let me say in advance I expect some disagreement with the following. Here is how I would handle this- I would have a large sign made, at a sign shop that gives a factual account of what has happened to you. If you own one, make the sign big enough to fit on the side of your dump, or in the back of your pick up. Take excavator, truck and trailer and park legally as close as possible to dealership. Take pictures, with both the dealership and sign in the same shot. Leave it there a day or two. Meanwhile, mail the pictures to the regional rep, the North American rep with a note saying that due to lack of follow up, you were forced to take this drastic action. Also inform them that the pictures are on their way to Japan to the CEO of Kubota, which you should also do. I would demand repair within 2 weeks, or a full refund. What scares me here is when a pump lets go, it can pump metal all through the hydraulic system, so I would do a fluid sample at a independent shop, as the dealership is completely untrustworthy at this point. If the sample comes back bad, anything less than a new machine or a full refund is out of the question. I have gone down this road myself, with a manufacter of irrigation products. Keep your head, speak the truth and apply pressure at the leverage points. What they are doing to you is very wrong.

Some real good thoughts there 74
 
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