JD 755 Three point hitch drops extremely slow when warmed up

   / JD 755 Three point hitch drops extremely slow when warmed up #1  

Moukie

Member
Joined
Oct 17, 2018
Messages
30
Tractor
John Deere 755
Good morning,
well i finally bought a box blade and reserved myself some time to work with my project tractor.........i am the one who sturggled with a list of issues, most notably low oil pressure and non-working mfwd. Well, those are now successfully corrected thanks in part to advice from you all. i tried to use my new box today but found that the 3 pt takes an extreme amount of time to drop, but only when tractor is warmed up well. Works great when cold. Takes about 2 minutes to drop when hot.....?
i have turned the adjustment valve/handle in/out several times and it does not improve. i was hoping that would be it, but no luck.. Turning the handle all the way in does indeed prevent the lift from dropping at all; hot or cold.

i did change hydraulic oil and filter and used jd oil and filter. Dealer sold me hy-gard regular, stating that regular and low vis were both approved and regular was about $10 cheaper.
Does this sound like an oil quality issue or possibly something else? I have had 3pt hitches that would not go up, but never one that would not drop?

BTW - this is the first i have used the tractor so i have no clue if it did the same thing before i changed oil and filter..


Any thoughts as to why the 3 pt hitch will not drop when hot? Works perfect when I first crank the tractor, but gets progressively slower (on the drop only) the warmer the tractor gets. Finally, after about 20 minutes of use, I might as well shut down and quit trying as it takes several minutes for lift to go from up-to-down with the weight of a HD box blade on it.

Thank you,
David in SC
 

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