Oliver 1855 3pt lift arms won't move

3pt lift arms won't respond to lever. My other two levers make their 4 hoses move and tighten at disconnects at the rear of the tractor. I can feel no force when lifting the free hanging 3pt arms while my wife moves the lever back and forth. Fluid level is full. However, I can get my 3pt lever to nudge to neutral when the lever is fully forward, if I reach down and grab and jerk up fast on the arms myself. Buying the shop manual at the farm store tomorrow, but really am new to hydraulics, so I thought I would post in case someone has any ideas.

Thanks,
Bruce in Kansas

power assist steering works as I thought I read a post about it being tied into hydraulics.

I NEED A MANUAL QUICK DON'T I???

Thank You

Thank You
Bruce
913 980 6666

Picture taken from rear of tractor just under seat. Is this the line feeding the lift cylinder (under the metal housing) via the tee in the picture? If so, I guess I need to take off this big cover to get to the relief valve ? Is this where it is? Don't want to do this unless this is where I need to go. Also, there is a shaft right above the tee that is broken off, I can move the shaft with no effect on the arms. What is that shaft for?

Thank for the help!
Bruce

Had no idea how it got fixed, until Larry U. called me to tell me he saw from my picture I had a problem with the linkage to the left/under the lift arm. You can see in the picture that a pin had moved out of the linkage. I saw this right after I had taken the picture and had already tapped and moved the linkage a few times, still didnt get the pin in all the way. The linkage was either bowed the wrong way, or the pin not engaged enough to get the linkage to work correctly. I had no idea how I had fixed the problem until Larry U. called after I got it working! Talk about luck. Anyway, my work isn't done, PTO slips with the mower on it. I didn't get off the hook yet. Figuring out how to check that problem currently!

Thank You Larry U. and J. Schwiebert for the phone calls.