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Kubota L3830 Pressure building in hydraulics

lhammond22 Join Date: Sep 2012 Posts: 4 Georgia

2012-09-29          185050

I have a 2003 Kubota L3830. The Hydraulic pressure is building up and have to pull the dip stick to release it. Anyone know where the pressure release is?

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Kubota L3830 Pressure building in hydraulics

Art White Join Date: Jan 2000 Posts: 6898 Waterville New York   Pics

2012-10-01          185067


Look for a vent on the top of the rear differential. That more then likely is plugged or not working. ....

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Kubota L3830 Pressure building in hydraulics

lhammond22 Join Date: Sep 2012 Posts: 4 Georgia

2012-10-02          185088

Thanks for the reply Art. Where your talking about is where the return is plugged into for my bucket! I know all the ones I have seen it was located there, but mine has to be in a different spot! ....

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Kubota L3830 Pressure building in hydraulics

Art White Join Date: Jan 2000 Posts: 6898 Waterville New York   Pics

2012-10-03          185096


I looked on a L4330 and I didn't see anything there that would work as a dedicated breather for the rear diff which is the holding area for the hydraulic fluid. You should not have pressure in the rear and I don't know other then through oil exchange or hot and cold that you should be able to build any pressure. ....

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Kubota L3830 Pressure building in hydraulics

charlieK Join Date: Feb 2004 Posts: 137 kentucky

2012-11-15          185474

my L3130 has a rubber breather directly on top of the rear diff and the L3830 should be the same ....

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Kubota L3830 Pressure building in hydraulics

lhammond22 Join Date: Sep 2012 Posts: 4 Georgia

2012-11-15          185475

Thanks Charlie, but that is where the return line is at for my bucket! All this was already attached when I got the tractor and I never had this problem before so there must be another spot somewhere on the tractor! ....

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Kubota L3830 Pressure building in hydraulics

Murf Join Date: Dec 1999 Posts: 7249 Toronto Area, Ontario, Canada   Pics

2012-11-15          185477

The real problem is that somebody's got the plumbing hooked up wrong.

Move the return line to proper spot of the PB (Power Beyond) plate and get the proper vent put back on the diff. housing.

I've never seen a vent other than the one on the rear axle on any of mine.


Best of luck. ....

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