Hello all, new member needs help. I received a B8200 with 427 hrs from a friend. Its a one owner machine always barn kept since new. The 3-point lift doesn't work up or down. No bucket or backhoe. Have searched internet but can't find out any info on a manual trans machine. I want to start with filters. Are there any for this hydraulic system that could be clogged up?
No Lift
- Thread starter jsweeney
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85Hokie
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I'd also try turning up the throttle a bit and let it warm up. If the arms show sign of rust, maybe some pbblaster or similar.
Its easy to check the hydraulic system on that tractor. There is a hydraulic outlet block on the right side of the engine. With tje tractor off remove plug "A" and place a 5 gallon bucket below the outlet. Set engine speed to idle and start engine. You should get an inmediate flow of oil out of that port. DO NOT INCREASE ENGINE SPEEFD. Shut the engine off as soon as you get oil and replace the plug.
Dan
Russell King
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There is a filter (screen) that can be cleaned. This illustration is from this site:
Kubota Tractor Corporation - Illustrated Parts List
- K-PAD - Parts Lists - Illustrated Parts Lists - diagrams
There is a three point hitch (TPH) speed control under the front of the seat. It controls the down speed only but loosen it fully to be the fastest down speed possible. It could be that it is in the locked position (arms can’t move down) and they are at the highest possible position already so can’t move up or down.
There is also a linkage between the upper (short) arm and the control valve that tries to keep the arms in the selected position. It is called a feedback rod and can be adjusted. But if it is missing, maladjusted or damaged it might not let the arms move (I guess). See the illustration below
Thank yall so much. I appreciate all suggestions. I assume if filter-strainer is clean and no fluid from port "A" then its gonna be the pump.
Not how I would approach it.
If you get oil from "A" the suction side is working and you check pump discharge pressure.
If no oil from "A" then you start looking at the strainer and relief vakve.
Dan
The last place I'd look is the screen in the hyd system. With that few of hours the chance of that being dirty/plugged is nill. Item $6 in the drawing Russell posted o the control vale need to be checked. Then the knob under the seat (between the legs of the operator) may need adjusted.
Welcome aboard !!
Welcome aboard !!
North Idaho Wolfman
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Ok so I drained fluid and removed strainer and it was clogged with gunk. I cleaned and reinstalled and filed with new fluid. Started tractor and let run before trying lift. It was making a sound that it hadn't been but when I tried lift it tried to raise and stopped. I pushed lever back down and tried again but nothing. I'm thinking there was so much gunk on the strainer that it possible clogged again. Thoughts? I'm gonna redo the process and check strainer.
I guess I'd repeat the gunk removal process. I wonder what caused the gunk. Wrong hydraulic fluid?
Maybe just age and lack of use? The fluid wasn't clear like new fluid ,not dark like dirty, but wasn't milky like contaminated with water either.,
I don't know how long that fluid is supposed to last, but if wasn't changed for a while, I think it would make sense to need to flush it.
Would pouring kerosene through fill port and letting it run out the strainer port be ok? Since strainer is at bottom of reservoir it should clean it out I'm thinking.
North Idaho Wolfman
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Do not use anything other than hydraulic fluid to flush it.
Kerosene will get trapped in the system and do damage to just about everything.
Kerosene will get trapped in the system and do damage to just about everything.
One more thought, It might be helpful to bring the hydraulic fluid up to operating temperature before emptying similar to engine oil.
I ran it to warm up fluid. Drained fluid and noticed the fluid is full of air bubbles. Is this normal and if not where might it be sucking air from? Imp gonna replace the o rings on the strainer bolt and the piece of braided line connecting the two halves of the strainer tube.
Russell King
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L185F, Modern Ag Competitor 4’ shredder, Rhino tiller, rear dirt scoop
Small bubbles in the fluid are not normal.
From the diagram above I highlighed in red the places air can be sucked in. It may be best to replace the hose and clamps since a small hole in the hose can also cause air to be sucked into the pump. I believe all the others are a sealing washer but they can be a copper or a rubber (encased in steel) so not sure which you have. Get new from the dealer and replace. Clean the surfaces and make sure there are no large scratches on the surfaces.
If you drain the new fluid out into clean containers you can reuse the oil. I would suggest using paint strainers when draining and then filter it through a filter before using it again. Perhaps a fine micron filter that fits on or in a five gallon bucket would be better like these bags that might work really well.
or these that sit on top of the bucket
on edit = added photo I had forgotten to add
From the diagram above I highlighed in red the places air can be sucked in. It may be best to replace the hose and clamps since a small hole in the hose can also cause air to be sucked into the pump. I believe all the others are a sealing washer but they can be a copper or a rubber (encased in steel) so not sure which you have. Get new from the dealer and replace. Clean the surfaces and make sure there are no large scratches on the surfaces.
If you drain the new fluid out into clean containers you can reuse the oil. I would suggest using paint strainers when draining and then filter it through a filter before using it again. Perhaps a fine micron filter that fits on or in a five gallon bucket would be better like these bags that might work really well.
Amazon.com: 5-Gallon Mesh Filter Bags, 5 Color Fine Nylon Mesh Strainer Bag Set, Reusable Filter Bag for 5 Gallon Bucket, Premium Pressing Screen & Storage Pouch (25 to 220-Micron) : Industrial & Scientific
Amazon.com: 5-Gallon Mesh Filter Bags, 5 Color Fine Nylon Mesh Strainer Bag Set, Reusable Filter Bag for 5 Gallon Bucket, Premium Pressing Screen & Storage Pouch (25 to 220-Micron) : Industrial & Scientific
www.amazon.com
or these that sit on top of the bucket
on edit = added photo I had forgotten to add
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I'd remove the filter and clean again. someone must of added a product they learned about on the internet to "improve wear and long life".
I had the same tractor, bought new in 1985, and somewhere along the line I got a hair brained idea to add something to the transmission oil. I got the same results. I cleaned the filter at least 2/3 times and eventually added a canister filter to the hyd. system.
I remember calling Kubota, I think in Houston, to talk to an engineer to figure what I needed. That was way before OTT.
Good luck getting it solved. That is a nice sized, all around tractor.
I had the same tractor, bought new in 1985, and somewhere along the line I got a hair brained idea to add something to the transmission oil. I got the same results. I cleaned the filter at least 2/3 times and eventually added a canister filter to the hyd. system.
I remember calling Kubota, I think in Houston, to talk to an engineer to figure what I needed. That was way before OTT.
Good luck getting it solved. That is a nice sized, all around tractor.