Ford 850 hydraulic lift questions

55ford850

New User
Hello,
I broke my draft control plunger and had to replace it. Everything went fine removing, replacing and reinstalling the lift assembly. Now I have a problem. When I set the lift to raise, it raises fine. When I set it down, it just stays up. If I stand on the lift arms it will go down, but a few minutes after I get off of it, it will start to slowly raise up again. I replaced the o-rings on the ram, accesory cover and the two on the frame. I removed the lift cover and the accesory cover to see if the o-rings had been damaged and they are okay. I haven't pulled the assembly again to check the ram rings, but I kept an eye on them as I remated the ram to the lift cover and they stayed seated. Everything worked great before I tore it down. Any suggestions would be very greatly appreciated.
 

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