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Forums > Active Threads > Other Tractor Brands > Jinma Farmpro Agracat Nortrac

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3 point hitch hydraulic system

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edwardleh
Join Date: Jun 2014
Posts: 4
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2014-06-26          190533


I have a 2oo3 Jinma 2425 tractor. My 3 point hitch will not lift or hold a load. The power steering and also the front end loader work fine. What can be the problem? If the hydraulics work on the loader and steering filters and pump etc must be OK.

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3 point hitch hydraulic system

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jdurb1
Join Date: Jun 2014
Posts: 10
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2014-06-26          190535


when this happened to me there was an adjuster that lets the pto drop fall very fast to not at all I had turned it tight thinking I was adjusting the seat ....

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3 point hitch hydraulic system

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edwardleh
Join Date: Jun 2014
Posts: 4
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2014-06-27          190546


I believe you have the newer model that has a knob located on the top/front of the cylinder housing. Mine does not have that it has a square projection approx 5/8 inch square 1 1/2 inch high. ....

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3 point hitch hydraulic system

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greg_g
Join Date: Jan 2004
Posts: 1816 Western Kentucky
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2014-06-28          190560


Quote:
Originally Posted by edwardleh | view 190533
I have a 2oo3 Jinma 2425 tractor. My 3 point hitch will not lift or hold a load. The power steering and also the front end loader work fine. What can be the problem? If the hydraulics work on the loader and steering filters and pump etc must be OK.
There is a diverter valve that switches hydraulic flow between the rear lift and the rear remote (that pipe that sticks out the side then points rearward). Sounds like your diverter must be directing the flow AWAY from the rear lift.

As stated, the divertor valve on older models was a hex head on the left side of the hydraulic sump housing (as seen from the operator seat). And the flow rate control valve is in front and below the operator seat. On newer models, the diverter valve has been incorporated into the flow rate control valve. Don't remember if it's full clockwise or full counter-clockwise, but one of those diverts flow to the remote.

If you're wondering why the bi-idirectional remote, it is generally intended for use with hydraulic dump trailers. I guess they're more popular in China than they are here. Fluid under pressure raises the trailer bed, gravity pushes the fluid back to the sump.

//greg// ....

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3 point hitch hydraulic system

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edwardleh
Join Date: Jun 2014
Posts: 4
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2014-06-30          190579


My tractor has a front end loader on it. The pipe on the left side of the housing goes forward and I belive it feeds the front end loader valve. Can this feed both front end loader and the 3 point hitch at the same time? ....

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3 point hitch hydraulic system

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OCCDave
Join Date: Jun 2014
Posts: 2 NORTHERN CALIFORNIA
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2014-07-05          190640


Have a Jinma 284 my FEL is fed straight from the pump so it cuts out the 3pt when it is operating. Also the 3pt cylinder which is located in the tank under the seat can go bad and will need new seals. Also the 3pt lift valve on the side that raises and lowers the 3pt also can go bad. Had to replace both of mine this year. ....

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3 point hitch hydraulic system

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greg_g
Join Date: Jan 2004
Posts: 1816 Western Kentucky
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2014-07-06          190643


Quote:
Originally Posted by edwardleh | view 190579
My tractor has a front end loader on it. The pipe on the left side of the housing goes forward and I belive it feeds the front end loader valve. Can this feed both front end loader and the 3 point hitch at the same time?
No way to tell from your description. Have to look at the way the hydraulics are plumbed. Can you post photos?

//greg// ....

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3 point hitch hydraulic system

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yocsr1
Join Date: Dec 2013
Posts: 178 Terre Haute, Indiana
TractorPoint Premium Member -- 5 Tractors = Very Frequent Poster  View my Photos  Pics

2014-07-15          190709


My foton 404 had the exact same problem and two quick connects were swapped (was that way when I bought it). Larry. ....

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