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Water contamination in a hydraulic system #4525924
09/25/17 02:40 PM
09/25/17 02:40 PM
Joined: Dec 2009
Posts: 762
Battle Creek, MI
SVTCobra Offline OP
SVTCobra  Offline OP
Joined: Dec 2009
Posts: 762
Battle Creek, MI
One of my buddies has a Case 480D loader and a problem he has had is water in the hydraulic system. We've installed a water faucet instead of the drain plug to drain water off, but that doesn't fix the underlying problem. Researching it there is a lot of info, but most of the solutions are expensive (like vacuum dehydrators), or something that is impractical without a lot of modifications to the current system (like using an oil filter that can trap water, there is only one filter and apparently don't trap dirt as well.)

What the underlying problem is that it doesn't have a proper vent - it vents through the cap and the previous owners put silicone in it thinking that there were problems with water ingress. My initial idea with my buddy was to use a desiccant filter so that as the air flows through it dries out and only dry air can enter the hydraulic system. He doesn't run it long enough at one time to heat the oil to an appreciable amount to evaporate water that well.

So the question is: Are there products available that would help remove water as it runs like a centrifuge or bypass filtration?


Think twice, speak once.
Re: Water contamination in a hydraulic system [Re: SVTCobra] #4525982
09/25/17 03:57 PM
09/25/17 03:57 PM
Joined: Aug 2003
Posts: 11,013
Buffalo, NY
JTK Offline
JTK  Offline
Joined: Aug 2003
Posts: 11,013
Buffalo, NY
How much hydraulic oil does the machine hold? The easiest method is to fix the breather system and just keep changing the oil.

I know we've run into this with the lube systems on big industrial compressors at work with sumps that hold 100's of gallons of oil. Very expensive oil changes.


2017 Ram 1500 4x4, 3.6L. 2016 Nissan Quest SV (Babe magnet IV)
Re: Water contamination in a hydraulic system [Re: SVTCobra] #4526061
09/25/17 05:16 PM
09/25/17 05:16 PM
Joined: Oct 2004
Posts: 8,329
Cincinnati, OH, USA
bullwinkle Offline
bullwinkle  Offline
Joined: Oct 2004
Posts: 8,329
Cincinnati, OH, USA
I had this problem with my log splitter when I got it, it had sat uncovered for years with a bad vent on the tank. Several 5 gallon buckets of cheap hydraulic oil, use, & changes got almost all of the water out (along with a new vent).


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Re: Water contamination in a hydraulic system [Re: SVTCobra] #4526142
09/25/17 06:46 PM
09/25/17 06:46 PM
Joined: Aug 2009
Posts: 135
Amarillo Texas
csx7006 Offline
csx7006  Offline
Joined: Aug 2009
Posts: 135
Amarillo Texas
Its a case, what do you expect? just do alot of flushing and filter changes

Re: Water contamination in a hydraulic system [Re: SVTCobra] #4526186
09/25/17 07:39 PM
09/25/17 07:39 PM
Joined: Dec 2009
Posts: 762
Battle Creek, MI
SVTCobra Offline OP
SVTCobra  Offline OP
Joined: Dec 2009
Posts: 762
Battle Creek, MI
It's a 12 gallon system with synthetic oil, so hate to just drain it after a year.


Think twice, speak once.
Re: Water contamination in a hydraulic system [Re: csx7006] #4526188
09/25/17 07:40 PM
09/25/17 07:40 PM
Joined: Dec 2009
Posts: 762
Battle Creek, MI
SVTCobra Offline OP
SVTCobra  Offline OP
Joined: Dec 2009
Posts: 762
Battle Creek, MI
Originally Posted By: csx7006
Its a case, what do you expect? just do alot of flushing and filter changes


Doesn't really address how it got contaminated to begin with.


Think twice, speak once.
Re: Water contamination in a hydraulic system [Re: SVTCobra] #4526264
09/25/17 09:17 PM
09/25/17 09:17 PM
Joined: Sep 2008
Posts: 9,235
Ontario, Canada
IndyIan Offline
IndyIan  Offline
Joined: Sep 2008
Posts: 9,235
Ontario, Canada
Originally Posted By: SVTCobra
Originally Posted By: csx7006
Its a case, what do you expect? just do alot of flushing and filter changes


Doesn't really address how it got contaminated to begin with.

That's what I would sort out first, and get the right vented cap. I would be tempted just to run it hard and get the fluid hot enough to evaporate the water but that could get expensive if there's too much water... Flash boiling probably isn't good for a hyd pump.
I guess you could drain it and evaporate the water, maybe an outdoor propane burner and a 10 gal steel pot would be pretty quick, just don't over do it.


07 Focus ZXW, 5spd manual, 218km M1 5W30
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Re: Water contamination in a hydraulic system [Re: IndyIan] #4526728
09/26/17 12:12 PM
09/26/17 12:12 PM
Joined: Dec 2009
Posts: 762
Battle Creek, MI
SVTCobra Offline OP
SVTCobra  Offline OP
Joined: Dec 2009
Posts: 762
Battle Creek, MI
Originally Posted By: IndyIan
I guess you could drain it and evaporate the water, maybe an outdoor propane burner and a 10 gal steel pot would be pretty quick, just don't over do it.


I like that idea - cheap and already have an outdoor propane burner. Throw on a desiccant filter/breather and he parks it under a lean to so no other sources of water ingress.


Think twice, speak once.

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