Hydraulic hose break and now a fluid leak

cgerhardt

New member

Equipment
Kubota B26 Tractor Loader Back Hoe, Rotary Cutter, Box & Grader Blade
Mar 16, 2020
3
0
1
Reno
I have a hydraulic leak on my b26. It is a 2015 and I recently had to replace 2 hydraulic hoses that broke. I was doing some heavy bucket work moving dirt and with a heavy disc on the back. I am wondering if this put extra pressure on the hoses that caused that issue. After replacing those hoses, I am now getting a leak with oil coming from the lower pan where you drain the fluid. I can't find where the leak is coming from. It is not from the hoses I replaced. Perhaps a seal? Where should I look. Also, any thoughts as to what may have caused this leak.
Thanks
 

85Hokie

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BX-25D ,PTB. Under Armor, '90&'92-B7100HST's, '06 BX1850 FEL
Jul 13, 2013
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113
Bedford - VA
I would think that "old hoses" tend to get old! If one broke and you had to replace and then another- chances are ALL of them will need to be replaced at one point.

As for working the machine hard - the hydraulics can ONLY get to "X" psi before the relief valve kicks in - so the pressure may not have been the problem - but the fluid does get rather hot and thus places more strain on those hoses, as does sunlight etc.....

I would find a way to wash away the "leak" area - clean it somehow, some will say take some baby powder and sprinkle it around the area you think is leaking and look for wet powder.

A picture OF THE AREA will help a great deal too
 

lynnmor

Well-known member

Equipment
B2601-1
May 3, 2021
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Red Lion
As for working the machine hard - the hydraulics can ONLY get to "X" psi before the relief valve kicks in
Neil Messick did a YouTube video on that subject showing some high readings. A hydraulic cylinder can act as a pump when it is forced to move.
 

cgerhardt

New member

Equipment
Kubota B26 Tractor Loader Back Hoe, Rotary Cutter, Box & Grader Blade
Mar 16, 2020
3
0
1
Reno
I would think that "old hoses" tend to get old! If one broke and you had to replace and then another- chances are ALL of them will need to be replaced at one point.

As for working the machine hard - the hydraulics can ONLY get to "X" psi before the relief valve kicks in - so the pressure may not have been the problem - but the fluid does get rather hot and thus places more strain on those hoses, as does sunlight etc.....

I would find a way to wash away the "leak" area - clean it somehow, some will say take some baby powder and sprinkle it around the area you think is leaking and look for wet powder.

A picture OF THE AREA will help a great deal too
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Thanks, that's helpful!
 

North Idaho Wolfman

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L3450DT-GST, Woods FEL, B7100 HSD, FEL, 60" SB, 743 Bobcat with V2203, and more
Jun 9, 2013
33,927
9,144
113
Sandpoint, ID
All of your issues could have something to do with a system over pressure.
And if you have a leak in the tank it could be a vent issue causing overpressure.