hydraulic system, ouch:
Hello, w2bstoned.
Did you notice any changes in the "normal" sounds the hydraulic system makes, on your machine, before you removed the cylinder?
If a pump is starting to fail, it would be very unusual to not hear something different... such as a lot more "whine", "howling", or other
bad sounds coming from the pumps area.
however the case drain on most excavators goes directly back to tank.
What JackDeere posted is correct...
most case drains are not filtered, so it
could be possible to get metal particles in the tank, without having a total melt down of a pump/motor.
The reason I toke the cylcinder off was that the boom started to fall down by its self
Do you only have one boom cylinder?
Also, do you know what the problem with the cylinder was?
I'm just trying to get a little more info., so I have a bit more to think on...
Regards,
OCR