Lost Hydraulic pressure to rear remote and 3 pt hitch

[Ted Mead]

I was plowing snow, all functions of snow plow, which is articulated from rear remote, were working fine. All of a sudden I lost ability to move plow left and right but loader function was fine. I have also lost pressure to 3 pt. Hitch. All hose couplings seem to be fine. No leaking fluid anywhere. Fluid levels are all normal.

Any suggestions as to what to look for next??

Happy Holiday!!
Thank you!

 

[LouNY]

Most of the time the hydraulic flow is from the pump to the loader control valve supply with a return to the reservoir and a power beyond line which goes to the rear remote supply, then a nother return to the reservoir and the power beyond going to the 3 pt control and back to the tractor reservoir. Could be a problem in the remote valve dumping every thing back into the reservoir if it blew out the pressure relief or one of the control spools is dumping all the fluid back into the reservoir. You could try carefully pinching off the return to reservoir line from you remotes.

 

[powerscol]

Do you have a second remote with float. Check to be sure its not engaged. Also are there any external leaks?

 

[Dave M7040]

You have a valve that has not returned to the center position. It will be a simple fix. Don't go ripping stuff apart.

If one valve is calling for pressure, all other stuff downstream will have nothing to work with.

Cold weather causes valves with a detent function to stick in detent. In case you don't know the term, think of an automatically returning log splitter. You pull the valve lever back and let go.

The hydraulic cylinder continues to retract until it hits the end of its stroke at which time hydraulic pressure spikes and kicks the valve back to neutral.

Dave M7040