3 point hitch

[cherkavin]

I have a Mitsubishi D1850 that was working just fine and now the 3 point hitch will no raise. I have replaced the fluids and cleaned filter and it still will not work. Any help will appreciate.

 

[Wagtail]

G'day Mate and welcome to TBN from Downunder.

Did you try adjusting the raise/lower speed adjustment knob? You may have bumped it with your foot/heel or vibration may have loosened it to the point where it won't control the 'flow'.

 

[Leejohn]

Is there a loader on the tractor? Check the lever linkage making sure it's moving the shaft going into the trans. housing. Could be as easy as a broken roll pin. If no loader you have to be sure the pump is putting out flow. If there is a way to put a psi gauge in the pressure line I would that. If you have flow and can't build psi then it would be in the 3pt control valve, open relief, broken o ring where it mounts, or the piston rings. That's about all I can think of.

 

[Jeff N]

just had that same problem with my rack control valve. it is easy to get to on my JD, under the seat. look up the rack control valve on yours and see if you can take the cover off and pull the shaft out, the shaft is what your control handle pushes against when you manipulate the lever to raise and lower your three pt hitch.if a piece of dirt or metal rust gets in there it will prevent it from allowing the fluid to flow through the ports on the shaft {plunger}