Another Hitachi with hydraulic problems

jeudi 1 mai 2014

I recently bought a Hitachi EX100-3 with a bad pump. Had pump built by trusted shop and am confident in their work. Now when working machine, all functions are slow and engine is loading up. They checked and rechecked hydraulics and could not find any problems. New solenoids and angle sensor installed with pump. Today I noticed when engine idling you can hear it load up for just a second or two and then back to normal idle. I also cleaned the fuel system to insure it wasn't engine problem. Have about thrown as much money at it as I can stand, need help please. Thanks in advance for any suggestions.




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