Need Help Diagnosing ZD 28f Hydraulic Lift Issue

   / Need Help Diagnosing ZD 28f Hydraulic Lift Issue #1  

jcansler

New member
Joined
Dec 11, 2010
Messages
2
Tractor
kubota m5700, Kubota ZD28, Kubota B7100
I have a ZD 28f mower with a 72" mower deck I purchased new and have 107 hours on it. The mower has always had this issue of the hydraulics squealing when lifting the deck at mowing rpms, it does not matter if the mower is hot or cold.

However, at idle the mower will lift the deck without any issues, it will lift smoothly and quietly as it should, when hydraulics are cold or hot.

The mower has fresh SUDT2, new filter, and clean strainer.

Other than the hydraulic lift issue, the hydraulics are strong, the pto clutch engages smoothly without any apparent slippage, and the mower pulls strong going forward and in reverse.

I believe that cavitation may be the cause of this issue but if it is I do not know what to do to resolve it.

I appreciate all of your thoughts and ideas on how to remedy this issue and I sincerely Thank You for your help in this matter.

Joe
 
 
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