ford 1620 hydro having issues i can not figure out.

[Derrick Farm Pride]

Hello I am working on a ford 1620 hydro and it came in with a problem of you would run it for an hr or so and you would loose all hydraulics ( loader and hydro) so you shut it off and let it cool down and it would work again for a short time (30mins to 2hrs). I done a pressure check at the loader valve and it was in the range of 1200psi and when I would loose all its power the was no pressure at the loader valve. So I put a new hydraulic pump on it along with all new filters and it brought the pressure up to 1500 on the valve but still has the issue of loosing all power. So I drained all the hydraulic fluid out of it and dropped the mid mount pto so I could look in the case with a camera and still did not find anything. Took the suction filter off and housing and used the cam to check the internal tube out. No restrictions there. So that is where im at and have no idea where to go now. Hope someone has had this issue and can lead me in the right direction. Thanks

 

[Leejohn]

I don't know much about a ford, but it could have a screen in the trans. Also the filter could be stopped up or the wrong one. Check hoses, clamps, and for pin holes in the suction line.

 

[Billrog]

Not really familiar with hydraulics and the terminology but is there a valve called a divert er valve where you can check the out-put and maybe it's giving you the problem ?? Just a guess as I had to mess with mine a few yrs. ago to diagnose some problem I was having.

 

[Derrick Farm Pride]

still looking for an awnser. I belive it to be in the suction line or something to do with the suction but can not seem to find it.