3pt hitch wont fully lift on Belarus 825

Hey everyone, hoping someone has some ideas that may help. I have a Belarus 825. Front end loader works great, lifts whatever I ask it to. Rear hydraulics work but won't lift all the way. I have a bushhog attached and it does lift it about 3 inches off the ground. Then it stops. It will not completely raise. Fluid is full. I have a friend who works on my equipment and he can't find any issues either. Anyone seen anything like this?? Thanks in advance.

That being a 100 hp tractor I can't really think the weight of the mower is an issue. Does it have any range limiting features like draft control or such that might be interfering? Are you sure the lever that controls the 3 pt is able to move thru it's full range? Other than that I am drawing a blank and would have to wonder if there is something blocking fluid flow given that your pump is raising the FEL fine. Just some ideas.

If tractor has the three hydraulic levers on right side of dash, will the 3 point lift using the outer lever, with lever beside seat in lift position against spring and releasd? Have you checked with mower removed? Also check linkages under cab and at the rear.

Not at all familiar with Belarus but on my Cat the 3-point would not raise all the way this fall. I had it in to dealer for something else and told them to check it. It just needed
calibration.

(quoted from post at 11:47:11 01/09/19) Hey everyone, hoping someone has some ideas that may help. I have a Belarus 825. Front end loader works great, lifts whatever I ask it to. Rear hydraulics work but won't lift all the way. I have a bushhog attached and it does lift it about 3 inches off the ground. Then it stops. It will not completely raise. Fluid is full. I have a friend who works on my equipment and he can't find any issues either. Anyone seen anything like this?? Thanks in advance.

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here's an adjustable lift stop on the 3 point lift cylinder ram, it pushes a pin/valve when the selected hight is reached. Maybe it has moved.

Hey, thank you everyone for the replies and
I have forwarded them to the guy who helps
me with any mechanical work. I admit most
of this is Greek to me, lol. One important
piece of info I realized I left out of my
original post was this started back late
Summer when I was bushhogging. It hasn't
been a huge priority because it actually
lifts enough for me to bushhog, and move
hay around which it is mainly used for. But
back when it started not lifting, I called
Jeff and he came to look at it... it lifted
PERFECTLY! ??? Later that day, guess
what... it wasn't lifting again! So we were
replacing a belt a few weeks later and I
mentioned it, he actually got to see it
acting up this time. He checked the fluid,
it was a little low but not bad and added
some to it. It lifted perfectly again. We
figured that it was lower than we thought
and went on. Next time on the tractor,
wouldn't lift and fluid still full. And
then day before yesterday I had to
completely take the bushhog OFF because I
had run over a small clump of hay that
snowballed making a nice scrapper blade and
since I couldn't lift the mower... had no
choice but to undo it. That's when I
decided I needed more heads thinking on
this and came here. Btw when the mower was
off... it still only lifted to the point it
does with it on. You can see the cylinder
and actually see a dust ring where it stops
about ?? 2" maybe a little more from
lifting fully. Jeff did talk to a guy at
Belarus this morning but I honestly don't
know what the outcome of that conversation
was yet. I will update. In the meantime
like I said, I forwarded your replies to
him also and will update you on what the
dealer suggests. Thank you again for any
info!!