L245 DT 3 points hitch is weak

[amaurymsa]

Hello All,
this is my first post as i'm new in the community.
i'm 31 and live in Belgium.
i've bought my first Tractor past saturday, and i'm quite sure than the choice is well done, this is the right color

this is a L245 DT from 1980 with 1950h and he comes with a FEL and some accessories bought to the first owner.

My first problem is located at the 3points hitch.
when i've seen for the first time the Kubota, all was ok to lift the rotavator(i hope it's the good word as i speak french as native language)

after the trip back to home, my intention was to put it down to allow to take others tools in my trailer.
but when i 've start again to move to the right place and no way to lift...
i can help with my hands to lift but it's quite difficult...

i've moved others parts (100Kg) and there, no problem.

travelling in the forum, i've seen some possibilities,
oil level : checked and filled to the good level
filter : not yet check because as the FEL seems to be ok, i guess than the filter could be ok too.

So, if someone as ideas, all input will be appreciated...

 

[MagKarl]

I have the same machine. My manual says the maximum impliment weight is 600lbs. How big is this rotovator?

Front end loaders can be plumbed into the tractor's hydraulic system or run from their own pump and reservoir. How is yours set up?

Even if your loader is plumbed in, I would still remove and check the hydraulic screen. This is a good time to replace the fluid since the screen is at the bottom of the case.

 

[amaurymsa]

Hi MagKarl,
my fel is using the tractor pump.(i don't see any other pump)
the rota is the original one and the guy lift it easely at the demo...

for sure i will drain oil and clean the screen, but i've to arrange a work place...

can you PM me or post a pic of under your seat to see how the mechanism is working, mine dont have spring...

regards & thanks for your help...

 

[MagKarl]

Sorry, I don't have a camera. What spring are you interested in? I don't have any springs on mine other than the seat.

Here's a parts manual that can be downloaded.
http://www.mytractorforum.com/images/reference/L245dt.pdf

 

[amaurymsa]

thanks for the link, i was already found the manual...
i'll come back later on the seat,

about the hyd screen filter, does i have to replace or can i clean it?

thanks again

 

[WinnieCouple]

Yes, you can clean the screen, just be ready for all the fluid to run out when you pull the screen....
You may be able to park the tractor with the rear end up higher than the front or put the cover back on the filter hole while you clean the filter screen.

I just wanted to say I enjoyed living in your country, I was stationed in Chievres Belgium (near SHAPE, Mons) from 1998-2000. I also have the same tractor.

Many people on here to answer all your questions.
meilleurs voeux

 

[amaurymsa]

Hi Winnie et merci

thanks for this info...

you're always welcome to drink a good Belgian Beer

 

[MagKarl]

The screens are not expensive if yours does not come clean.
http://www.messicks.com/partdetail/34150-37710.aspx

 

[amaurymsa]

in Belgium, that's a bit more expensive, around 25€...
i've already ask to some companies but noone want to ship to my country...
i will order one cause it's will be difficult to clean it.
thanks for your input.

 

[WinnieCouple]

my seat spring is broken too.
its not so bad, I may fix it some day.

my tractor is one of early models and I broke the front at the engine...
I am building a full subframe to keep her together. The later models have a deep oil pan that supports the front better, hopefully you have the better built one.

keep us informed on your tractor.


(Leffe, Duvel, Stella Artois, Chimay... are the flavors I enjoyed most.)

 

[amaurymsa]

hello,
just to let you know than i've drained oil and changed the screen filter.
that seems better but i've to put gas on maximum to lift the rotovator...
is it the same for you?
during the same time i've change the seal oil & bearing of my rear left wheel. if someone need info, let me know...
have a nice night

 

[aquaforce]

hello,
just to let you know than i've drained oil and changed the screen filter.
that seems better but i've to put gas on maximum to lift the rotovator...
is it the same for you?
during the same time i've change the seal oil & bearing of my rear left wheel. if someone need info, let me know...
have a nice night

All hydraulics, tractors included are rated at the max rpm.
For example if a unit can lift 1000 lbs then that is only at max rpm. When the rpm is lower the pressure and flow of the pump are not running at their full potential which is why it is rated at full rpm but not lower. The over all health of the system my influence the drop off rate such as maybe run 90% rating at -500 rpm instead of -200 rpm from max.
At full rpm the relief valve, which is that squealing sound when you hold the function after it stops, may be able to control max pressure but below full rpm full pressure most likely can't be reached which is the strength of the lift.

If you are lifting at full rpm then at least your lifting it.
Was the tractor at full rpm during the demo? I would expect so.

 

[MagKarl]

I'm going to have to question that aquaforce. My tractor and bachoe pumps both seem to have the same pressure, strength, etc., regardless of rpm. All more rpm does it move the fluid faster. If you have internal bypass, then more flow will give you more pressure. I suspect he's got some bypass either in the pump or lift cylinder, or the tiller is just a bit over weight for that machine.

 

[birddogger]

To test the 3ph. Remove any implement. Raise the hitch to highest. Shut off engine. Hold onto fender for balance, stand on the end of the lift arms. If you can see it go down the o-ring on the lift cylinder has likely gone.

 

[amaurymsa]

If you are lifting at full rpm then at least your lifting it.
Was the tractor at full rpm during the demo? I would expect so.

Thanks for your input; yes at full rpm (or near) the 3ph is working with the rota. i don't rembember the rpm level during the demo, but not sure he show it to me at full gas...

 

[amaurymsa]

I'm going to have to question that aquaforce. My tractor and bachoe pumps both seem to have the same pressure, strength, etc., regardless of rpm. All more rpm does it move the fluid faster. If you have internal bypass, then more flow will give you more pressure. I suspect he's got some bypass either in the pump or lift cylinder, or the tiller is just a bit over weight for that machine.

Hi MagKarl,
where can i have a look to a bypass?
thanks

 

[amaurymsa]

To test the 3ph. Remove any implement. Raise the hitch to highest. Shut off engine. Hold onto fender for balance, stand on the end of the lift arms. If you can see it go down the o-ring on the lift cylinder has likely gone.

Hello Birddogger,
the 3ph stay up, seems to be ok.
thanks,
Amaury

 

[MagKarl]

What I meant by internal bypass is anything leaking internally. As birddogger suggested, it could be the lift cylinder o-ring, it could be debris or broken spring/stuck unseated relief valve, could be a worn pump. Do you hear the relief valve squealing?

I would get a guage and verify the hydraulic system pressure to decide whether you have an issue with the hydraulics or if the tiller is just too big. 2000psi is the relief setting. While the manual says 600lb maximum tiller weight, the hitch itself should easily lift much more.

 

[amaurymsa]

dear all,
after some month on other activities,
i'm back on this topic.
i've bought a pressure gauge (12€) and perform some tests:

first : 70 bar (1000PSI)
second after adding 2 shims in the relief valve : 90 bar

if i remember well, the nominal pressure has to be around 140-150bar.

I cannot add more shims as it's already difficult to put the plug back in relief valve.

so my questions are :

my pump is dead?
something else can limit the pressure in the circuit?
spring in relief valve is tired?

from the pump, High pressure goes before in the FEL control and then back to the rear of my 245

is there a relief valve in each hyd control lever?

thanks again!

 

[amaurymsa]

i've found a relief valve in the control of the FEL!
now pressure is adjusted at 150 bar and i can lift my rotovator at 1000rpm

i'm really happy to say than this topic is closed with a happy end!

i've still a question, who has a pressure gauge installed on his kubota?

thanks again for all!