snowman
Diamond
- Joined
- Jul 31, 2004
- Location
- Southeast Michigan
I have this hydraulic unit, only marking is marathon motor and vesco cap. I think it's a vesco vari pak, but that just describes the tank, not the functional parts.
Anyway, looking at the relief valve/valve block/gauge, can anyone explain what the two ports coming out the top are for? The one on the left seems to be outlet, the one on the right possibly return to tank? I am guessing that only because it's situated on the same side as the relief valve. There don't seem to be any identifying numbers.
Right now I am having trouble getting unit to work when connected to a center closed valve (it stalls after moving cylinder to maximum position, so I'm assuming relief valve isn't opening?). It circulates fine without load attached. I have backed out the relief valve thinking it might have been wound in too tight.
I am also not getting any pressure reading on the gauge, even when it stalls the motor.
Anyway, looking at the relief valve/valve block/gauge, can anyone explain what the two ports coming out the top are for? The one on the left seems to be outlet, the one on the right possibly return to tank? I am guessing that only because it's situated on the same side as the relief valve. There don't seem to be any identifying numbers.
Right now I am having trouble getting unit to work when connected to a center closed valve (it stalls after moving cylinder to maximum position, so I'm assuming relief valve isn't opening?). It circulates fine without load attached. I have backed out the relief valve thinking it might have been wound in too tight.
I am also not getting any pressure reading on the gauge, even when it stalls the motor.