Backhoe Yanmar trackhoe

   / Yanmar trackhoe #1  

redoakrowdy

New member
Joined
Mar 30, 2013
Messages
5
Location
Gainesville, Ga.
Tractor
Yanmar 550 Trackhoe
We have an older Yanmar trackhoe. Blew up the pump. Rebuilt it, now the controls don't work. Perhaps some trash in the control bank somewhere? We unhooked a line at the control bank and have line pressure so the pump is working.
Where would the relief valve be in that older system? I am thinking maybe some trash from the pump is keeping a relief valve open and the control bank is starving for oil. We replaced the oil with new and filters are new.
Need help in Georgia!
 

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