Oliver Super 55 lift stuck in up position

bvg55

New User
Hello new here, seen a old post. Too old to post back to.
Now, lift was working fine. Shut tractor down. Lift does not leak down. Fired it back up, lift worked up and down just fine. No noises, no jerks,smooth as silk. Pulled lever up one last time, lift went north. Tractor engine bogged when lift got to the end of its travel. Engine is still in strain from I'm assuming pump,pumping against a relief valve. Pump housing got hot, where fluid passages from pump go through housing. Any ideas on problem? I will post back when I find the problem. I will not leave anyone else hanging that is having the same problem. Oh,,,,no implement was on lift at either time. Thanx for any replies.
 
Not familiar with the Oliver, but typically there is a mechanical linkage that monitors the position of the lift in relation to the draft control lever, that in turn regulates the hydraulic control valve. Something about that linkage has gotten out of sync or the valve itself has a problem.

There is an Oliver board below, might post there for a more specific answer.
 

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