As people, who deal with all sorts of hydraulic malfunctions on a daily
basis, we, hydraulic technicians and mechanics don't get impressed
easily, but these power-packs (plural, yes, there were two of
them, in equal state) were something different... The images show you
the inside of the oil tank. Luckily for you, pictures can not transfer
odor, which, I must say, was outstanding!... You wouldn't believe the
stuff we found lying on the bottom... Inexpressible, unutterable,
stuff that could make you say in a Hollywood
old-times-war-or-horror-movies- manner: "I've seen things...Terrible
things..." and burst out blubbering!
The most amazing thing, however, was the fact that
these power-packs (simple design, gear pump, small AC motor and a
couple of valves) stopped running not due to a component malfunction,
but due to insufficient oil level!
It is true, I swear! Apparently they kept on working with this
yellish goo untill the goo level dropped below the pump's suction line.
The gear pump was tested and it was OK! Congratulations, brothers and
sisters, for you are witnessing a miracle!
What a perfect example of preventive maintenance in action!