any chance of some pictures? rear of tractor showing all of the 3 pt hitch arms / chains / etc... on it.... but without the weight box.
and if possible picture of controls on tractor?
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others got me to thinking. if weight box was on tractor all the time. the last owner may have tossed on a linkage from arms to another part of tractor to permanently fix the arms in place per say. or at least greatly reduce how far the arms can move up and down and perhaps they just wiggle a little bit up and down.
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Originally Posted by
boggen 
turn the tractor on. you might need to "engage" the PTO. so it spins on back of the tractor. and then use the lever to see if the arms raise and/or lower. the PTO is a small little shaft between the arms and just slightly above them on back of the tractor. and below the center top link of the 3 point hitch.
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it's a pretty sure thing that the arms SHOULD lower without the pto on.. even IF the pto had to be on to raise them.. IE.. in the case of a machine with a non live belly pump like a ford 8n.
the exhaust feature should still work without the pto.. it's not a DA cyl.. it's SA.
soundguy
ya took me out of context some there, but regardless, i would think so as well. *arms* lowering even without tractor on and need to just move correct levers / button and maybe a little down pressure / weight on arms. but as you and others have said. transport lock, small twist valve or lever to slow down how fast the arms lower.
and comments about a valve stuck, or clogged up. is good sense to. example this past winter, allis chalmers CA the cylinders would either get stuck all the way up or part way between. and would not drop or raise. after replacing all seals, gaskets, 0-rings. along with replacing broken pto shaft that drives the hyd pump. everything is fine. and assuming the gunk on the stuff was reason for the problems.
for me it was not as simple as change filters, cleaning screens, complete oil change. due to stuff was done built up and clogging the ball bearings that were acting like check valves. and not letting the hyd fluid flow like it should.
