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s 650 g satoh
- Thread starter kimokuley
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there are a lot of people that would like to help with your hydralic problem. the trouble is you did not say what the problem is .is there a loader on the tractor? is the hydralics slow ? is it not lifting the weight? ect.what did you do to try to fix it? did you clean the filter? strainer.the oil or fluid most likely is not the problem unless it is contaminated and turn into sludge.
i am sorry that i didnt explain myself better. I have just found out that the pump was backwards so I flipped it over and now i have pressure I can see the lines jump but my 3 pt still doesnt work. will the air work its way out or do i need to do something like bleading the lines? It does have a front end loader but i dont have it at this time, I need the hydrualics to work so I can go and get it. Would welcome any and all help. Thanks Kim
had pump off of front and found that it was on backwards from previous owner, is their a secret for getting all the air out of the system? I can watch my llines move when the lever is moved but my 3 pt doesnt move. I have a front loader for it but cant get until I get my hydraulic working any help would be very much appriciated. thanks Kim
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how to trouble shoot 3 point hydralics
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05-24-2007, 07:40 PM #1 (permalink)
mit
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Posts: 301 how to trouble shoot 3 point hydralics
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can any one help with trouble shooting a 3 point hitch hydralics system.lets say 1. there is fluid
2. the fel hose is connected on the hydralic line.quick connectors.
3. with the engine started and the lever moved to the up position it does not lift.
what to check next?
mit
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05-24-2007, 10:45 PM #2 (permalink)
JerryG
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Re: how to trouble shoot 3 point hydralics
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I have learned over the years that the first thing to check when having a hydraulic problem is always the quick disconnects. They can look like they are connected and not be. Some times you have to take them apart and put them back together to find out that they weren't together right to start with.
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05-25-2007, 06:10 PM #3 (permalink)
tractorErnie
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Mit, Im willing to help you if you call us, otherwise I type like a turtle.
I have trouble shot a few mitsus that would not lift
you can find us at
Used Yanmar tractors, New Mahindra tractors, New Branson Tractors from Ernie's Imports inc
Ernie
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05-27-2007, 02:48 PM #4 (permalink)
mit
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i have in the hydralics jd20 fluid. it is full. i tried air pressure at the rear vent hole with tractor on and off while working the lift lever back and forth. it still will not lift. i opened the pressure relief valve that is near to the gear shift and crank the engine. fluid came out of one of the holes. i blow out the pressure relief valve with 100lbs air so it is clean. put it back together it still would not lift.any help would appreciated.
mit
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05-27-2007, 02:55 PM #5 (permalink)
mit
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oh i took off the quick disconnects and blew air through so there is no restriction all the way to the pressure relief valve. i think that the pump is fine cause i put my thumb over the hole while cranking and it blew fluid .i dont know what else to do. i was told to change the fluid to a thicker oil but i dont think that is the problem.
mit
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05-28-2007, 08:49 PM #6 (permalink)
wushaw
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Well there is one thing you can try is take the top of the three point housing off to see if it has a frozen piston or broke piston. I am grasping at straws here ....although on my 372 the 3pt would not come down once and it turned out the piston was froze in the up position.
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05-28-2007, 09:37 PM #7 (permalink)
mit
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i blew air into the hydralic line. the line that carries fluid to the control valve and the lift piston. i can hear the air gushing out.there is no back pressure.its like if the pressure is diverted from the piston. i have read that the control valve could get stuck in a neutral position.in this position the pressure or oil gets dumped back into the resovour.
mit
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05-29-2007, 02:45 PM #8 (permalink)
wushaw
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Control valve stuck in the neutral position sounds like it could be.
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05-29-2007, 09:36 PM #9 (permalink)
mit
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Posts: 301 Re: how to trouble shoot 3 point hydralics
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i pulled off the reservoir and took off the control valve. i blew air into one of the holes and it is coming out of the poppet valve discharge outlet with any position of the control lever.i unscrew the poppet valve.the big nut with no hole and remove the spring and the piston. the piston was a little tight to come out i found a piece of crud on it. i cleaned and replace poppet valve,spring and tighten down.then i air tested .when the control lever is pushed in air comes out the second hole and when released the air comes out of the poppet valve discharge.dont know if it will work on the tractor as yet but it seems to be working the right way now.thank you all for your help.
mit
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06-06-2007, 10:35 PM #10 (permalink)
mit
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so my 3 point hitch works. it goes up and down and all the in between positions.do any one know how to make a home made carry all to attach to the 3 point hitch?made from wood and bolts?
mit
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TractorByNet.com > Brand Specific Forums > Mitsubishi/Satoh
how to trouble shoot 3 point hydralics
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05-24-2007, 07:40 PM #1 (permalink)
mit
Gold Member
Join Date: May 2007
Posts: 301 how to trouble shoot 3 point hydralics
--------------------------------------------------------------------------------
can any one help with trouble shooting a 3 point hitch hydralics system.lets say 1. there is fluid
2. the fel hose is connected on the hydralic line.quick connectors.
3. with the engine started and the lever moved to the up position it does not lift.
what to check next?
mit
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05-24-2007, 10:45 PM #2 (permalink)
JerryG
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Join Date: Apr 2000
Location: Northwest Arkansas
Posts: 6,958
Re: how to trouble shoot 3 point hydralics
--------------------------------------------------------------------------------
I have learned over the years that the first thing to check when having a hydraulic problem is always the quick disconnects. They can look like they are connected and not be. Some times you have to take them apart and put them back together to find out that they weren't together right to start with.
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05-25-2007, 06:10 PM #3 (permalink)
tractorErnie
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Join Date: Mar 2002
Location: left coast
Posts: 1,523 Re: how to trouble shoot 3 point hydralics
--------------------------------------------------------------------------------
Mit, Im willing to help you if you call us, otherwise I type like a turtle.
I have trouble shot a few mitsus that would not lift
you can find us at
Used Yanmar tractors, New Mahindra tractors, New Branson Tractors from Ernie's Imports inc
Ernie
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05-27-2007, 02:48 PM #4 (permalink)
mit
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Join Date: May 2007
Posts: 301 Re: how to trouble shoot 3 point hydralics
--------------------------------------------------------------------------------
i have in the hydralics jd20 fluid. it is full. i tried air pressure at the rear vent hole with tractor on and off while working the lift lever back and forth. it still will not lift. i opened the pressure relief valve that is near to the gear shift and crank the engine. fluid came out of one of the holes. i blow out the pressure relief valve with 100lbs air so it is clean. put it back together it still would not lift.any help would appreciated.
mit
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05-27-2007, 02:55 PM #5 (permalink)
mit
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Posts: 301 Re: how to trouble shoot 3 point hydralics
--------------------------------------------------------------------------------
oh i took off the quick disconnects and blew air through so there is no restriction all the way to the pressure relief valve. i think that the pump is fine cause i put my thumb over the hole while cranking and it blew fluid .i dont know what else to do. i was told to change the fluid to a thicker oil but i dont think that is the problem.
mit
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05-28-2007, 08:49 PM #6 (permalink)
wushaw
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Join Date: Mar 2005
Location: Bristol Texas
Posts: 2,828 Re: how to trouble shoot 3 point hydralics
--------------------------------------------------------------------------------
Well there is one thing you can try is take the top of the three point housing off to see if it has a frozen piston or broke piston. I am grasping at straws here ....although on my 372 the 3pt would not come down once and it turned out the piston was froze in the up position.
wushaw
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05-28-2007, 09:37 PM #7 (permalink)
mit
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Join Date: May 2007
Posts: 301 Re: how to trouble shoot 3 point hydralics
--------------------------------------------------------------------------------
i blew air into the hydralic line. the line that carries fluid to the control valve and the lift piston. i can hear the air gushing out.there is no back pressure.its like if the pressure is diverted from the piston. i have read that the control valve could get stuck in a neutral position.in this position the pressure or oil gets dumped back into the resovour.
mit
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05-29-2007, 02:45 PM #8 (permalink)
wushaw
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Join Date: Mar 2005
Location: Bristol Texas
Posts: 2,828 Re: how to trouble shoot 3 point hydralics
--------------------------------------------------------------------------------
Control valve stuck in the neutral position sounds like it could be.
wushaw
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05-29-2007, 09:36 PM #9 (permalink)
mit
Gold Member
Join Date: May 2007
Posts: 301 Re: how to trouble shoot 3 point hydralics
--------------------------------------------------------------------------------
i pulled off the reservoir and took off the control valve. i blew air into one of the holes and it is coming out of the poppet valve discharge outlet with any position of the control lever.i unscrew the poppet valve.the big nut with no hole and remove the spring and the piston. the piston was a little tight to come out i found a piece of crud on it. i cleaned and replace poppet valve,spring and tighten down.then i air tested .when the control lever is pushed in air comes out the second hole and when released the air comes out of the poppet valve discharge.dont know if it will work on the tractor as yet but it seems to be working the right way now.thank you all for your help.
mit
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06-06-2007, 10:35 PM #10 (permalink)
mit
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Join Date: May 2007
Posts: 301 Re: how to trouble shoot 3 point hydralics
--------------------------------------------------------------------------------
so my 3 point hitch works. it goes up and down and all the in between positions.do any one know how to make a home made carry all to attach to the 3 point hitch?made from wood and bolts?
mit
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Safety Warning: TractorByNet.com does not review discussion forum posts for accuracy or safety. Please refer to manufacturer operator and safety manuals before operating tractors or equipment. Additionally, use caution and common sense when applying any advice you receive on TractorByNet.com, and seek professional advice before attempting professional tasks.
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first i would try and see if the front end hydralic hoses are coupled together.if it is not couple it together and then try the 3 point lift.fluid may not be going to the lift cause the loader is not connected and the hoses coupled together. if that dont work you have to verify that fluid is getting to the 3 point.
Hey everyone thaks for all the help!! yesterday I had the afternoon off and I tuned the old girl up new wires new plugs, set the timming and she ran like a top when i got the rpms up i noticed a squeeling from the pump so i too a wrench and held the ball in on the female hose end and got alot of air and dark fluid and then hot fluid and then put the hoses together and low and behold the darn thing started working, so when and got the fel and everything is good, Thanks again to everyone. Kim