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Hydraulic system debris #5260341 11/06/19 10:10 PM
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ledslinger Offline OP
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My buddy changed the hydraulic system oil on his 1994 Kubota L2900. He just bought it within the last year, and he thinks the system oil hadn't ever been changed. It took 10 gallons of Kubota Super UDT oil at $30/gallon. He was shocked at some of the debris trapped in the filter magnet. Two pieces an inch long look like parts of a piston ring.

Tractor has always functioned well, but it seems amazing the debris isn't from something important to function. Could it be that these remnants were left in the system from the assembly process? I've heard other stories of much debris in hydraulic systems, but it seems amazing that any debris that looks like parts doesn't cause a malfunction.

My buddy was looking at his service manual to see if he could find any parts that look like the debris in the parts breakdowns. He found some "synchronizer springs" that look like where the debris could have come from. He said it shifts perfectly which makes it amazing these parts aren't essential.

Re: Hydraulic system debris [Re: ledslinger] #5260358 11/06/19 10:46 PM
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clinebarger Offline
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Could be from a past failure that got repaired!


2001 Chevy Camaro L92/4L80E
2006 Chevy 2500HD LBZ/Allison 1000
2010 Toyota Corolla 2ZR-FE/U341E
2000 Toyota Avalon 1MZ-FE/A541E
Re: Hydraulic system debris [Re: ledslinger] #5260497 11/07/19 07:24 AM
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WyrTwister Offline
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Is the drain plug at the bottom of a large reservoir ?


Wyr
God bless
Re: Hydraulic system debris [Re: ledslinger] #5260739 11/07/19 11:45 AM
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tundraotto Offline
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Metal is common in breaking in the hydraulics - hence the magnets. That's why the Kubota hydraulic oil and/or filter change has an early first schedule. Unless there is a problem with the hydraulics I would not lose sleep over it. Some models shed more metal more during break-in than others.

Re: Hydraulic system debris [Re: WyrTwister] #5260752 11/07/19 11:58 AM
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ledslinger Offline OP
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Originally Posted by WyrTwister
Is the drain plug at the bottom of a large reservoir ?


Yes I think so. These metal fragments were in the filter magnet, which is quite strong.

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