I've been rewiring on my Mazak M4 CNC lathe for three weeks now. Today, I hit the reset (Estop) button and the hydraulic pump came to life. Got power all over and life is good.
I've got no oil pressure. I'm sure the pump has lost its prime, its been sitting two years. What oil should I use? Do I need to prime it? The other possibility is rotation, there's a 50/50 chance its turning the wrong way. This is fixed by switching any two of the three phase lines. How do I check this? I looked all over the unit and can't find a rotation arrow.
I thought about undoing a supply line, but if it takes hold, I'd have a REAL BIG MESS. Should I find a way to do this and trap the output oil to a drum or something?
Karl