I want to know if the hydraulic oil cooler is a full flow cooler. In fact, when I raise one track and rotate it freely at high speed and check the pressure from this small hose (usually used to drain the cooler) I see 2 bar which is the cooler check valve cracking pressure. And when I use the arm out I see 4 to 5 bar. Is this normal?
I mean a komatsu PC240-7