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    These pictures aren't so notorious by themselves - a couple of broken parts from a busted Sauer Danfoss series 90 closed loop unit, maybe the charge pump is damaged a little bit more than usual. Clearly, something extremely foreign got sucked into the inlet...  What I found interesting, was the fact that, whatever it was that'd cracked the charge pump, it also passed through and jammed open BOTH of the multi-function valves at the same time.

    The story behind these pictures is also extreme in its unbelievableness. First of all - the oil sample, which lets us speculate the hydraulic oil used in the machine is probably the same original oil from 30000 hours ago, and medium working oil temperature is assumably close to 110 C, with the ISO particle count estimated in the neighborhood of 24/24/24, give or take. If you go through the trouble of checking the oil-cleanliness component-compatibility chart, you will see that not only the oil isn't suitable for working with dirt tolerant gear or vane pumps, it is not suitable for working with hydraulic hoses and pipes! 

    Of course the machine broke down in a completely unexpected place, and, get this, the owner, despite all the reasoning, insisted on re-assembling the pump THE WAY IT WAS (with the split charge pump, jammed valves and everything...) to try to move the machine from the place it stopped so abruptly.

    My only regret is I wasn't there to see it, because it would be like watching someone who said he could walk on water try to actually do so. Although completely aware it's impossible, you'd still hope to witness a miracle...

    And then there is a motor somewhere in the circuit... What? No need to check it?
As I was saying, folks, aren't we all hoping for a miracle?..
Broken Parts, Sauer Danfoss series 90
Damaged Cylinder Block, series 90
Broken Charge Pump
damaged multi-function valves, series 90
Contaminated oil sample