B20 Water in hydraulic oil

B20 toy

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B20 bucket and backhoe
Oct 23, 2015
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Eagar, AZ
Somehow I got water in my hydraulic oil. It turned all white. Does any one know how to completely drain the system and how much oil it will take to refill it?
 

85Hokie

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Somehow I got water in my hydraulic oil. It turned all white. Does any one know how to completely drain the system and how much oil it will take to refill it?

30.6 qts [29.0 L] :)
 

Billdog350

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Kubota L3710 HST,L2230A QT,forks,Takeuchi TB125, 60" Luck Now pto Snowblower
Jan 6, 2014
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East Hampton, CT
Drains should be located on the low points under the tractor near your final drives and also near the center of the tractor.

Make sure all implements are on the ground and pistons retracted as much as possible to maximize the drain.

Depending on how bad the water is, you can add a bunch of cheap "UDT compatible" fluid after the flush, run the machine and all implements, and then drain fluid and add quality KUBOTA Super UDT2 fluid.
 

coachgeo

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B20 toy

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Lifetime Member

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B20 bucket and backhoe
Oct 23, 2015
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Eagar, AZ
Thanks to all of you. I like the flush idea. I think water from heavy rain found its way into my spare fluid. It showed up right after I topped off the reservoir.
 

Tx Jim

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Apr 30, 2013
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Be sure the breather(vent) hole isn't plugged. If hole is plugged moisture has no way to escape once hyd oil reaches operating temp.
 

Tooljunkie

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L1501,home built carry all, mini plow blade.
May 13, 2014
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I try to keep all the essential fluids under a roof, but i do have available space for that. As well as keeping machine indoors when not used.
As mentioned, a flush with less expensive fluid.
A very small amount of water will evaporate once oil heats up while working.
 
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Bulldog

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M 9000 DTC, L 3000 DT
Mar 30, 2010
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Rocky Face, Georgia
After this initial drain and re-fill cycle thru all functions multiple times because all the cylinders are going to hold the old fluid. depending on how bad it is you may be looking at 2 or 3 fluid and filter changes to clean it system out.

Any way you look at it this will be an expensive lesson learned.