Hey guys, I know there are TONS of threads already about increasing the hydrolic pressure on a Kubota bx using a hydro-pressure gauge and adding Shims to the relief valve but I just figured I would make a new thread about this to touch down on my specific application and questions.
I purchased a 2013 Kubota bx 2370 for a smoking deal awhile back, the tractor only came with the 60***8221; belly mower, the loader valve and the hydro-manifold. (Tractor had never seen a loader in its life). The tractor had 400hr on it when I purchased it.
About 3 weeks ago I bought a brand new LA340 loader from my local dealer and had them install it, the loader works fantastic as the does the QA loader and skid steer bucket mount.
I recently picked up a pressure tester kit from Bxpanded and quickly tested my pressure out.. I figured it was well worth the money to test as I know the relief valve spring is already 5-6 years old and since the tractor never had a loader on it I had no clue what the relief pressure would have been set to from the factory.
My initial test I got about 1,650psi which is well under spec (1750-1850psi) area. I added .7mm in shims after a few trial and errors and quickly got my operating pressure to 1,950psi! I havnt had a chance to test the loader yet as it was already off the tractor and it was getting too dark to attempt to install it so I will have to see how it feels today but I***8217;m gonna have to assume it***8217;s gonna feel quite a bit better with a 300psi jump in pressure like that.
My question to you guys is for those of you who have done this on your bx, what was the highest you left your pressure at and how long now has your loader been working well with the higher pressure? Any failures? Leaking Piston seals? Pump ok?
-I ask this question because not a lot of people actually know what the bx loader/pump can handle for a max pressure and the more info we get out of members here who have done this the more we can learn and make our own best educated guess as to what the hydrolic system can actually handle.
I have heard of one guy on this forum who says he increased his to 2100psi with no issues what so ever but I don***8217;t know if I would ever dare to go this high, I***8217;m more than likely going to leave mine at 2000psi or slightly under where it currently is after adding the shims but this would still be a great thing to know.
**Obviously heavy ballasts are a MUST when using such high loader pressures and correct use of your loader in keeping your load close to the ground and as level as possible is another great example of the safety that is required when increasing the pressure higher than spec.**
Lastly... I went from roughly 1650psi to 1950psi.. how much of a gain in lift capacity do you think I will have gained with it now being at 1950psi? I know the LA340 loader is about 50lbs heavier than the LA243 due to the skid steer QA so I am just curious of what you guys think my total lifting capacity will be now at 1950psi vs where it was at 1650psi.
Thanks guys! -Remeber the more we all share the more we can learn!
I purchased a 2013 Kubota bx 2370 for a smoking deal awhile back, the tractor only came with the 60***8221; belly mower, the loader valve and the hydro-manifold. (Tractor had never seen a loader in its life). The tractor had 400hr on it when I purchased it.
About 3 weeks ago I bought a brand new LA340 loader from my local dealer and had them install it, the loader works fantastic as the does the QA loader and skid steer bucket mount.
I recently picked up a pressure tester kit from Bxpanded and quickly tested my pressure out.. I figured it was well worth the money to test as I know the relief valve spring is already 5-6 years old and since the tractor never had a loader on it I had no clue what the relief pressure would have been set to from the factory.
My initial test I got about 1,650psi which is well under spec (1750-1850psi) area. I added .7mm in shims after a few trial and errors and quickly got my operating pressure to 1,950psi! I havnt had a chance to test the loader yet as it was already off the tractor and it was getting too dark to attempt to install it so I will have to see how it feels today but I***8217;m gonna have to assume it***8217;s gonna feel quite a bit better with a 300psi jump in pressure like that.
My question to you guys is for those of you who have done this on your bx, what was the highest you left your pressure at and how long now has your loader been working well with the higher pressure? Any failures? Leaking Piston seals? Pump ok?
-I ask this question because not a lot of people actually know what the bx loader/pump can handle for a max pressure and the more info we get out of members here who have done this the more we can learn and make our own best educated guess as to what the hydrolic system can actually handle.
I have heard of one guy on this forum who says he increased his to 2100psi with no issues what so ever but I don***8217;t know if I would ever dare to go this high, I***8217;m more than likely going to leave mine at 2000psi or slightly under where it currently is after adding the shims but this would still be a great thing to know.
**Obviously heavy ballasts are a MUST when using such high loader pressures and correct use of your loader in keeping your load close to the ground and as level as possible is another great example of the safety that is required when increasing the pressure higher than spec.**
Lastly... I went from roughly 1650psi to 1950psi.. how much of a gain in lift capacity do you think I will have gained with it now being at 1950psi? I know the LA340 loader is about 50lbs heavier than the LA243 due to the skid steer QA so I am just curious of what you guys think my total lifting capacity will be now at 1950psi vs where it was at 1650psi.
Thanks guys! -Remeber the more we all share the more we can learn!
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