After 1st Day's Use

/ After 1st Day's Use #1  

Marooned

Bronze Member
Joined
Dec 11, 2005
Messages
76
Location
Colorado County, Texas
Tractor
Kubota 4330 HST, 853 FEL
After 1st Day\'s Use

Took delivery of my new 4330 HST this past Friday, played around on it a couple of hours and quickly garaged it for the night. Next day when I went into the garage to take her out for another spin, noticed a small puddle of hydraulic fluid, about 3 inches in diameter on the concrete floor under the tractor.

Should I be concerned? Call dealer? Or is this Typical?
 
/ After 1st Day's Use #2  
Re: After 1st Day\'s Use

Fluid leakage is not normal or typical on any tractor and your best bet is to call the dealer who sold you the tractor. However, I would first check the hydraulic fluid level to make sure that it is not overfull before you contact your dealer. Some posters on TBN have reported fluid leakage when the level has been overfilled. Take a good look and see if you can find out where the leak is coming from. It could be something simple like a loose hydraulic line fitting or drain plug which tighting should fix, but if you can't find the source or it looks like the cause of the leak is something more serious such as a seal or defective pressure line, I would contact your dealer for repair, either way, any issue should be under warranty.


Jim
 
/ After 1st Day's Use #3  
Re: After 1st Day\'s Use

As AB4D suggested I would look under it before calling the dealer. On both my old B7100 and the new B7510 I developed a small leak in the hydraulic return line connection. I suppose the rubber hose shrinks after a while and starts leaking. It has hose clamps on it and I just tightened them a little and that stopped the leak.

If that is the problem it is easier to fix than it is to take it back to the dealer.

Bill Tolle
 
/ After 1st Day's Use #4  
Re: After 1st Day\'s Use

On my L3430 one of the remote fittings was leaking. I just tightened it and the problem was solved. I have fittings leak slightly once and a while. Just tighten them up.

ksmmoto
 
/ After 1st Day's Use
  • Thread Starter
#5  
Re: After 1st Day\'s Use

After further inspection, it appears that the leak is coming from one of the quick connect couplers up @ the joystick control box. Fluid is leaking from the connection, down the loader frame and onto the ground. Is there any adjustment on these quick connect fittings (or couplers, whichever they are called)?

Guess I will disconnect, clean and reconnect and see if that fixes the problem. Any other suggestions?

Also, when I disconnect the coupler, there should be no hydraulic pressure on it (as long as the tractor is not running), right???? Will any fluid leak out when I disconnect?

Sorry about all the questions, but I'm not familiar with hydraulics at all.
 
/ After 1st Day's Use #6  
Re: After 1st Day\'s Use

</font><font color="blue" class="small">( After further inspection, it appears that the leak is coming from one of the quick connect couplers up @ the joystick control box. Fluid is leaking from the connection, down the loader frame and onto the ground. Is there any adjustment on these quick connect fittings (or couplers, whichever they are called)?

Guess I will disconnect, clean and reconnect and see if that fixes the problem. Any other suggestions?

Also, when I disconnect the coupler, there should be no hydraulic pressure on it (as long as the tractor is not running), right???? Will any fluid leak out when I disconnect?

Sorry about all the questions, but I'm not familiar with hydraulics at all. )</font>

Just work the joy stick in all directions with engine off and it will bleed off any pressure.
 
/ After 1st Day's Use #7  
Re: After 1st Day\'s Use

We have a 3830 and have had this happen several times. It gets your attention when you look down and see a puddle of oil. Each time I undid and reconnected the offending coupler. I'm wondering whether to replace the coupler or maybe the o-ring inside. Before I uncouple I shut off the tractor, and with the bucket down jiggle the control lever to all positions. Don't know if you have to, but that way you know there's no pressure. I'll be interested to see what your remedy is.
 
/ After 1st Day's Use
  • Thread Starter
#8  
Re: After 1st Day\'s Use

I'll give it a try tomorrow after work and let you know if it works. Thanks.
 
/ After 1st Day's Use #9  
Re: After 1st Day\'s Use

( After further inspection, it appears that the leak is coming from one of the quick connect couplers up @ the joystick control box. Also, when I disconnect the coupler, there should be no hydraulic pressure on it (as long as the tractor is not running), right???? Will any fluid leak out when I disconnect?)

I truncated your post for the sake of clarity, not as an insult.

You must relieve all hydraulic pressure on the line which you want to disconnect. You may be able to disconnect under pressure, however, you will not be able to reconnect the line with pressure at the check balls. Been there done that. It's messy and gets UDT all over you and the tractor, so, so as not to have a mess, before you disconnect any couplers to clean them (and it's possible though highly unlikely that dirt within the coupler will cause it to leak), follow the loader dismounting procedure to relieve all pressure on the couplers. You can shortcut the whole dismount procedure (if you don't actually want to dismount the loader) by setting the loader on the ground with the bucket flat. Turn of the engine and rotate the joystick in a circular motion (between all detents) 2 or 3 times to relieve pressure. Then you can part any of the couplers at the joystick. I suspect your problem isn't the coupler itself but, rather the nuts which attach the coupler to the hose and hard pipe. With the loader relaxed, I'd check all the fittings for looseness in as much as your tractor is new.

I know that sounds complicated but if you disconnect a coupler with pressure present, it's a B***H to recouple. There are couplers specially designed to uncouple under pressure and re couple but they aren't used on FEL's

One other thing. When you recouple, push the female (hose end) on the male (hard pipe or valve body). don't twist it, push it straight and deliberately on. Twisting the female fitting is real hard on the rubber seal inside.
 
/ After 1st Day's Use #10  
Re: After 1st Day\'s Use

With all the hydraulic problems on new tractors that I am seeing, I am starting to worry about Kubota's quality control. Your tractor, abunch of B series owners and my bx2230, what is going on here? Any real cause for concern, or is this a case of early buyer's remorse that is unjustified?
 
/ After 1st Day's Use
  • Thread Starter
#11  
Re: After 1st Day\'s Use

Daryl,
Thanks for the advice!

Now I'm a little worried, but I'll give it a try anyway. On another note, was any literature like an owner's manual supposed to come with the FEL? I didn't get anything from the dealer when he delivered the tractor. All I got was the tractor manual. So I'm not exactly sure of the procedure to dismount the FEL. I would like to dismount it in the summer time to make it easier to shred around all the trees on my place.
 
/ After 1st Day's Use #12  
Re: After 1st Day\'s Use

You definetely should have recieved a FEL manual with your new tractor, it outlines all of the procedures and use, I am sure your dealer will give you one if you ask. I haven't tried Kubota's site to see if it is online? Hope it all works out for you...
 
/ After 1st Day's Use
  • Thread Starter
#13  
Re: After 1st Day\'s Use

pj,

I don't consider my hydraulic leak to be a big "deal" in regards to Kubota's quality control YET. But I do reserve the right to change my mind should the problem become more severe, or in the event that I have to take the tractor back to the dealer to be fixed.

I think these type of things just happen sometimes. I am not familiar with the problems you have been having with your bx, and I am not trying to mitigate them either. I am just chalking mine up as a "new tractor glitch", and hoping that it is the only one. Other than this one minor issue, the tractor has performed flawlessly, and has met all my expectations. I guess I'm still on the "new tractor high"?
 
/ After 1st Day's Use #14  
Re: After 1st Day\'s Use

I think all large companies can have control issues. I have had no problems with my Kubota, but when I got my new Ford F350 after 500 miles it had to go back to the shop, the starter wire was left loose from the factory and would not start, of course I didn't know what was wrong at the time, but frustrating when you buy something expensive and brand new.
 
/ After 1st Day's Use
  • Thread Starter
#15  
Re: After 1st Day\'s Use

rk246,

Thanks, I'll call dealer tomorrow and request one.
 
/ After 1st Day's Use #16  
Re: After 1st Day\'s Use

As far as the hydraulic issues, aren't the FEL's installed at the dealers? Whe I got my machine, I had to wait an extra week because they had the loaders on backorder but they did have the tractor. It could be more of an installation issue as opposed to a factory problem. Just a thought.
Also make sure the pressure is off before disconnecting as others have said. I didn't once and had to end up putting a new female end on one of my FEL hoses as I damaged the O-ring and the teflon ring around the O-ring trying to shove it on there (I have since learned how to relieve the pressure if I forget even though it makes a mess). Of course you couldn't just buy the O-ring and teflon housing, you had to buy the whole end.
 
/ After 1st Day's Use #17  
Re: After 1st Day\'s Use

The dealer installed my remotes. One leaked slightly after several weeks. It just needed to be tightened. I have had to retighten couplers on hoses that I installed on cylinders. It is common and no way reflects on quality control by Kubota.

Hydraulics run at 2500 lbs pressure and will loosen connections after they have been cycled fifty to several hundred times. Just need to be retightened, not disassembled.

ksmmoto
 
/ After 1st Day's Use #18  
Re: After 1st Day\'s Use

Had the same problem on the rear remote of my L3400. After several attempts to re-seat it I called my dealer and he gave me a new one no charge. That took care of it. These are not Kubota parts either.
 
/ After 1st Day's Use #19  
Re: After 1st Day\'s Use

Marooned:

You should have most certainly got a supplement with your owners' manual corcerning the mounting of the loader, bolt tightening torque values and mount and dismount procedures. By mounting the loader, I mean assembling the loader on the tractor and how to align it (level the bucket in relationship to the tractor).

The hydraulic fittings on any Kubota are Parker Hannifin or just Parker. Quality fittings readily available and interchangable. The lines are mostly Parker or Airquip.
 
/ After 1st Day's Use #20  
Re: After 1st Day\'s Use

KubotaSteve:

If I am not mistaken, the loaders on the smaller Kubota's are dealer installed and on the big tractors M series like mine, the loader is installed when the tractor arrives in Gainesville, Georgia. The smaller tractors are crated in metal frames and shipped to the dealers who do the assembly, wheels, fluids, loaders etc. The big ones come complete and tested via flat bed truck.

Neil, correct me if I am wrong.
 

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