JD 650 3Pt keeps lowering while mowing

Jsmcbride · Apr 18, 2015

My 3pt drops slowly while I am mowing. Hydro fluid is good. Can't figure it out and I don't have a manual it was passed down from my Granddad and I am so frustrated. I can mow but have to keep checking to see if it needs raised back up often. I have just had to self learn everything with this old tractor but I can find anything about this. I dont even know what half the kever and knobs do on it.

pmsmechanic · Apr 18, 2015

John Deere has owners manuals online. Whether your 650 is in the list I don't know. Maybe someone else can point that out.

There should be some sort of friction setup for the three pint hitch lever that you can tighten up. Again I don't know where it is. There should also be a movable stop in the same slot as the three point hitch lever. If you set that so that the lever can go no lower than where you want it you should be ok.

Jsmcbride · Apr 18, 2015

What I am trying yo understand is am I looking for a hydrolic problem or a parts adjustment? Hydro works great lifts up and down perfect so I am really confused. Thanks!

pmsmechanic · Apr 18, 2015

I believe that you are looking at a parts adjustment. This is just an educated guess from the information you have given me.

If you go to jdpc.deere.com and do a search for 650 you will find a parts listing for your tractor. I like the sectional index but you can look at others if you like. Open the sectional index. Scroll down to hydraulics and open that. What you are looking for is section 126- Rock shaft control and linkage. Open that up and you will find a parts diagram for your tractor. Look for parts numbers 32,31 and 12. part number 32 is dished washers which indicates a spring type action. If you carefully tighten up numbers 31 and 12 which are two nuts you should be able to get your lever so that it doesn't move when you don't want it to.

Part numbers 20,21,22,24,and 15 are the three point hitch stop I was telling you about earlier. If you set that to the point you want your three point hitch to stop at that will be a temporary fix so that you can get your mowing done today.