Hi there. Have a few questions for you, any answers would be much appreciated.
On my Ford 3000 '72, I have the weakness and hiccup problem on the 3-pts hitch. It got to the point where it needs help raising a 600 lbs logging winch (no trees attached) I have to say that we abused it a fairly long time with the winch wich may have been a bit over limit when hauling trees.
Anyway, took the lift cover apart last weekend and did not find anything specially worn in it, apart a small flat on the piston o-ring, wich I'll change with the one I got in a cover o-ring kit. Will see to hone it too.
For now, I assume that, according to the oil flow diagrams and the fact that it does not stay up in neutral, that I have a leak somwhere between the Check-Valve, control-valve (where it unloads), safety valve, and cylinder.
For the safety valve, I'll try to get it checked in a shop if it is possible by itself.
For the cylinder, should I keep the leather backing seal or put the plastic one provided in the kit? Not shure but I may have a neoprene one too in the kit. Will change the O-Ring anyway.
For the checkvalve, can't say if it is wrong seems normal. Should I try to reseat the ball?
For the control valve. If I push it in "Neutral" or "Raise" position and put compress air in the appropriate conduit, I can see air bubbles pass thru where it is suppose to unload the cylinder. It get worse in "Raise"position than "Neutral" I am not familiar with "metal on metal" oil seals, it may be normal that air pass thrue when there is just a little film of oil, but I'd like to know if it is a sign of wear and if I should replace it. I did try it with oil in it, nothing passed but I was way far from the nominal 2500PSI.
So that's it for the "Cylinder side" of the hydraulics". Probably I should look at other things while I have it apart, like the unload valve o-rings, what do you think?.
Thanks in advance for any help.
On my Ford 3000 '72, I have the weakness and hiccup problem on the 3-pts hitch. It got to the point where it needs help raising a 600 lbs logging winch (no trees attached) I have to say that we abused it a fairly long time with the winch wich may have been a bit over limit when hauling trees.
Anyway, took the lift cover apart last weekend and did not find anything specially worn in it, apart a small flat on the piston o-ring, wich I'll change with the one I got in a cover o-ring kit. Will see to hone it too.
For now, I assume that, according to the oil flow diagrams and the fact that it does not stay up in neutral, that I have a leak somwhere between the Check-Valve, control-valve (where it unloads), safety valve, and cylinder.
For the safety valve, I'll try to get it checked in a shop if it is possible by itself.
For the cylinder, should I keep the leather backing seal or put the plastic one provided in the kit? Not shure but I may have a neoprene one too in the kit. Will change the O-Ring anyway.
For the checkvalve, can't say if it is wrong seems normal. Should I try to reseat the ball?
For the control valve. If I push it in "Neutral" or "Raise" position and put compress air in the appropriate conduit, I can see air bubbles pass thru where it is suppose to unload the cylinder. It get worse in "Raise"position than "Neutral" I am not familiar with "metal on metal" oil seals, it may be normal that air pass thrue when there is just a little film of oil, but I'd like to know if it is a sign of wear and if I should replace it. I did try it with oil in it, nothing passed but I was way far from the nominal 2500PSI.
So that's it for the "Cylinder side" of the hydraulics". Probably I should look at other things while I have it apart, like the unload valve o-rings, what do you think?.
Thanks in advance for any help.
. If I find the right bolt thread, I may plug the hole just to see if it fix the problem and buy a new one if it does.