That doesn't mean it's going where it's needed. The regulating valves have check valves in them. So, without pressure, and a fair amount of pressure at that, the oil is NOT going to the ways and ballscrews. When I took mine apart earlier this year, I found several of the valves were stuck shut, and could find no way to get them to open, even with 125 PSI air.
Regards,
Ray L.