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Old 03-26-2015   #1
crosscut123
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Default Hydraulics "throwing up"

I've got a Kubota F2560 with a 72 inch deck. It has started this issue of pushing all the hydraulic fluid out of the fill port at the top of the reservoir when I start it up and it virtually empties itself. Anybody got an idea??
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Old 03-26-2015   #2
Diydave
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Default Re: Hydraulics "throwing up"

Quote:
Originally Posted by crosscut123 View Post
I've got a Kubota F2560 with a 72 inch deck. It has started this issue of pushing all the hydraulic fluid out of the fill port at the top of the reservoir when I start it up and it virtually empties itself. Anybody got an idea??
overfilled reservoir? Water getting into reservoir?
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Old 03-26-2015   #3
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Default Re: Hydraulics "throwing up"

Wrong oil. Suction line leak?
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Old 03-26-2015   #4
Bulldog
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Default Re: Hydraulics "throwing up"

Have you checked to see if the vent for the reservoir is open?

If it's stopped up it causes pressure to build as the fluid is returning into the reservoir. It's going to relieve it's one way or the other and it can cause what you describe.
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Old 03-27-2015   #5
ShaunRH

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Default Re: Hydraulics "throwing up"

I second the plugged vent.

IF that's not it, your pump has something wrong with it, bad valve or seals.
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Old 03-27-2015   #6
bh115577
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Default Re: Hydraulics "throwing up"

A few things to consider in this article.

http://www.machinerylubrication.com/...foaming-in-oil
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Old 03-29-2015   #7
crosscut123
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Default Re: Hydraulics "throwing up"

Can you direct me to how to check the vent? As far as other items, is there a valve or pressure check vale that prevents pressure from the pump from returning into the reservoir?
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