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Oliver 1650 3 point arms won't move.

D

DMAX91

New User
My dads oliver 1650 gas decided to give out on the 3 point arms and won't move at all. It had a loader until we started to repaint it and took the return and supply hoses coming from under the seat and put them together. Probably the wrong move but really don't know for sure. At first we capped the lines off but the hydraulics wouldn't work so then we put them together. Well after all that we had to cut hay so took it to the field without putting the loader back on and was able to run it for about 3-4 hours before it crapped out and wouldn't even move the draft arms. For some reason before all this the tractor has been needing the hydraulic pump replaced which has been twice within a couple years and now this problem occurs. Any help would be much appreciated before I start tearing into it, thanks!
 
So you have no hydraulics now,or just the three point won't work?

I can tell you how to eliminate the loader hoses you have hooked together,but I don't think that's your problem. Take off the one that goes back in toward the rear of the tractor under the seat,stick a long Allen wrench in the hole and remove the quarter inch pipe plug that's in there,then replace the hose with a pipe plug.
 
First of all did you run the loader through the 2 remote valves of the tractor hydraulics? If not you probably have a power beyond set up and you had all the oil going over the relief valve and overheated the pump, so did the unit get hot? My e-mail is open. J.
 
You said you capped the lines off at first think that might be the key it blew something from the pressure,because if I'm understanding correctly the oil then had to go thru the relief
and that's not good.
 
it doesn't have hydraulics at the 3 point. It was able to steer so wouldn't that mean that the pump still good? And I plan to hook the loader back up. This has happened about a year ago and I'm just now getting to it cuz I've had no time so I'm trying to remember exactly what happened when it did give out.
 
oh also I have no idea if it got hot, I wasn't the one running it at the time. The hydraulic hoses for the loader are coming from under the seat and aren't hooked up to the rear scv remotes. Just from what I've read on some forms is there a possibility it could be the relief valve?
 
So the 3pt did work before you ran it for the 3-4 hours then? Because there's a bypass bolt that you turn out down by your right heel for one way cylinders and if that's out,the 3pt won't work. That hasn't worked its way out has it? There's a thin lock not on it that's supposed to keep it in place.


Were you using the 3pt when it quit working? My 1550 would give out while raking hay with the 3pt V rake after a while. The big o-ring on the 3pt cylinder was bad and the oil was bypassing there to the point that it'd get hot. The hotter it got,the thinner it got until it wouldn't lift the rake at all.
 
3 point had worked always before this happened to give out on use while cutting hay with our Sickle bar. I will Have to go take a look at the tractor later today and see what ur talking about and I'll take pics of the hydraulic lines we messed with for the loader.
 
Is it a 3pt mower then? If so,did you notice any bouncing like the draft control was working over and over trying to maintain the same height? If so,I think the o-ring on the 3pt cylinder is getting bad. Will it work now if you start it up cold?
 
okay I talked to my brother who was running it at the time. He said he doesn't remember it trying to bounce up and down on it's own but he was cutting and went to raise the 3 point and it wouldn't even raise it off the ground. And I couldn't tell u if it will raise now. Since it's been sitting awhile I can't seem to get it started to try it out.
 
I have photos to post on here to show but not sure how I get them to download and post. Think I might have found the bolt u was talking about by right foot.
 
The bolt takes a 3/4 inch wrench. Goes in to the side of the rear end housing. Has a thin lock nut. It pushes a steel ball in to a seat.
 
(quoted from post at 13:12:32 06/10/18) The bolt takes a 3/4 inch wrench. Goes in to the side of the rear end housing. Has a thin lock nut. It pushes a steel ball in to a seat.
Click to expand...
okay well that's it then I think. I'll find out when I get the tractor running thanks!
 
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