Among all the Japanese pumps, Kawasaki K3V series is my favorite. I am well aware of the drawbacks, but these open circuit pumps will last and last and last and last... Two things they need to survive - cool oil and clean oil. This poor thing saw neither, up till the D day...
This proves, once again, that no samurai (Japanese pump), no matter how skilled a warrior he might be (good quality and design, provided by Kawasaki), can beat a machine gun unit in open field from a relatively long distance (zero maintenance coupled with contaminated and hot hydraulic oil).