The hydraulics came to life on the mill today. Only one leak right at the base of the pump,about 6-10 drips per second. I can pee faster than that, most days. I'm guessing parts would be impossible, the pump name and any numbers are all written in jap. I'll make up a real nice catch pan and run it with the leak for now.
I'm getting 700 psi at the pump. I assume that's enough pressure??
There are two gauges on solenoid cabinets below the tool changers that have lammacoid labels calling for 500 PSI and that's the reading.
There is another gauge clear on top of the machine that calls out 560 PSI and its reading 500. My guess is this is the all important counter balance unit. Anyway, I tried to tighten a relief valve adjust screw and it won't budge. So, I started to undo the base. Then I decided to stop and ask, "Is a spring and ball going to fly out a this thing?" I'd never find it.
I looked at removing the whole unit. There's a plate on top of the distribution unit that it bolts to. I decided to stop here too. Its not leaking now. If I take it apart, there's likely some gasket to be destroyed and never find another. How do you make up hydraulic gaskets? Will some sort of silicone gasket goo hold it? Or will there be some odd ball metric O rings?
Tomorrow, I'll try to move the Z ball screw by hand with the pump running. If the force isn't high, maybe I should leave it alone for now. I just KNOW I'm likely to break it worse.
Karl