So I copied rkidds parts list to install a hydraulic top link of my 2650. As well as the majority is his install parameters....
Prince 2 spool DA valve with float 9-7862-F. DA cylinder 9-7682-08, both from Surplus Center.
The valve is installed between the PB outlet on the loader valve and the inlet for the 3 point. The 3 point functions as it should. The "tank" port has been tee'd into the loader return line.
Heres where I am running into an issue....
I have the top link connected to the float spool and the pilot valve removed from the cylinder so the lines tie directly into the cylinder. Operating the valve in one direction, which extends the cylinder, functions fine. From light input up to full open I can modulate the speed of the cylinder as much as the hydraulic flow allows and will trip the relief in the valve if I hold it against the fully extended position...
Now, when I operate the valve in the opposite direction, which would be retracting the cylinder, it operates what I would call backwards. As I move the lever, as soon as flow starts to go to the cylinder, its tripping the relief. The hose gets tense with pressure, the engine bogs a little like it should if one was holding a valve open against a cylinder that's reached its limit of motion..... But if I operate the valve fully open, no issues until the cylinder reaches its limit, then it functions normally by tripping the relief in the valve.
Modulating the valve in this direction to control the speed of the cylinder appears to be hitting some obstruction in the valve unless the valve is fully open.
I have sent an email off to surplus center... But wondering if I am missing something...
Prince 2 spool DA valve with float 9-7862-F. DA cylinder 9-7682-08, both from Surplus Center.
The valve is installed between the PB outlet on the loader valve and the inlet for the 3 point. The 3 point functions as it should. The "tank" port has been tee'd into the loader return line.
Heres where I am running into an issue....
I have the top link connected to the float spool and the pilot valve removed from the cylinder so the lines tie directly into the cylinder. Operating the valve in one direction, which extends the cylinder, functions fine. From light input up to full open I can modulate the speed of the cylinder as much as the hydraulic flow allows and will trip the relief in the valve if I hold it against the fully extended position...
Now, when I operate the valve in the opposite direction, which would be retracting the cylinder, it operates what I would call backwards. As I move the lever, as soon as flow starts to go to the cylinder, its tripping the relief. The hose gets tense with pressure, the engine bogs a little like it should if one was holding a valve open against a cylinder that's reached its limit of motion..... But if I operate the valve fully open, no issues until the cylinder reaches its limit, then it functions normally by tripping the relief in the valve.
Modulating the valve in this direction to control the speed of the cylinder appears to be hitting some obstruction in the valve unless the valve is fully open.
I have sent an email off to surplus center... But wondering if I am missing something...