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Crawlers, Dozers, Loaders & Backhoes Discussion Forum

580k backhoe problems

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carl

08-19-2003 15:20:05




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I recently bought a 580k that was a repo. As we checked it out it became oblvious that the engine was chocked out by the hydraulics.Well the pump is fine..... ..we can't locate the pressure regulator.Does anyone know where it is or have another theory..... we need to work this machine soon. THANKS




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JimKS

08-20-2003 18:17:53




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 Re: 580k backhoe problems in reply to carl , 08-19-2003 15:20:05  
I think we'll need some clarification here. Does the machine run fine, but bog down when a hydraulic function is pulled, or when one it run over relief? Or will the machine simply not start because of drag from the hydraulic system? Or will it run but has low power? How do you know that the problem is in the hydraulic system? I'll need a much more detailed description of the problem before I can give you any plausible ideas.

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AJ

08-19-2003 16:52:15




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 Re: 580k backhoe problems in reply to carl , 08-19-2003 15:20:05  
On the French built machines that we have in the UK the main valve for the whole circuit is in the loader valve block (front),it is the spring type and I doubt if it has tightened up on its own,you did not say what movements are causing the engine to die,are you sure the fuel system is ok,air filter etc,are you are sure some lever is not engaged or the pedal for the extend a hoe stuck,I would make sure that all the valves (levers) are in neutral,if they are see how well the machine pushes and if the engine dies then. AJ

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