Weak Loader on Kubota

catfish-65 · Apr 14, 2009

I have a Kubota B7200 with a Buhler (Allied) #95 Fronte end loader on it. It is worthless the way it is. Weak, weak, weak! I put a pressure gauge on the hose going to the cylinders and it had 1100 PSI. Where could I start? I realize it is not going to lift a locomotive but i would sure like to be able to lift a bucket of dirt! Please let me know what to try! Thank you!

Anonymous-0 · Apr 14, 2009

Are the loader cylinders sized for 2000# hydraulic pressure? If so you need to increase hydraulic pressure, maybe aux pto pump or get cylinders with more surface area.

TomTex · Apr 14, 2009

Not familar with that model, but best place to start is with the Kubota Operator Manual and the Kubota Repair Manual. First see what the specs call for as to lifting power. Next see what hyd pressure should read. Next go to trouble shooting section. Tom

Anonymous-0 · Apr 14, 2009

Were you trying to pick up the maximum with the loader and stalling the hydraulics? The pressure will only go as high as needed to lift the load. If you were, check and see if you have an adjustable relief valve and turn the pressure up to about 2000 psi and see what it does. Dave

catfish-65 · Apr 14, 2009

I removed the quick disconnect to the joystick and put the gauge on the end of the hose where it would have normally went to the cylinders so it wasn't trying to lift anything at the time. How can I tell if they are stalling, and where do you think the adjustable valve would be. I went to the Buhler website and it says the spec on max pressure is 1900# so I could go up.

Billpa · Apr 15, 2009

i would gues you blew a piston cup.

Anonymous-0 · Apr 15, 2009

If you will give me a way to get in touch with you can help. 28 years selling kubota, could be the tractor but i suspect the way it is plumed. Brobably incorect plumbing or problem with the valve or loader cylinders. Anyway give me a e mail or phone number and i will get in touch with you and help you out. Jerry Watkins

waltdavies · Apr 15, 2009

My Kubota has an Allied bucket it won't lift much over 800 lbs. Set that way for safety you don't want to land on your face.
make that the 3 point lever is not all the way up it locks the bucket. Mine will not lift much when it is all the way back and will not go down unless powered down.
Make sure that your systen can withstand the higher pressure before raising it. You could in for real trouble if the pump is only good for 1500 PSI and you take it up to 1900 PSI.
Your manual should say what the maximum hydraulic pressure is.
Walt

Anonymous-0 · Apr 15, 2009

I don't even know if you can adjust the relief valve. You'd have to ask someone familiar with Kubota's. The relief valve protects the hydraulic system from overloads. If you tried to pick up something too heavy, the hydraulics would stall. Well actually, the relief valve would open so you don't damage something. You can test pressure with the cylinders at the end of their stroke as well but only do it long enough to see what the pressure goes to. The gauge has to be Tee'd into the work hose. A hydraulic shop could give you a diagram and explain it better for you. Dave

GA Dave · Apr 15, 2009

Someone on this site may be able to help. David...............

http://www.tractorbynet.com/forums/kubota-owning-operating/

Weak Loader on Kubota

catfish-65

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TomTex

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catfish-65

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Billpa

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