I am looking for wiring diagrams and hydraulic schmatic for a Hitchi EX200LC -3 s/n:14c-79696. When the hydrauic temp reaches 105F the pump pressure and gpm increases and stalls the engine. The standby pressure goes from 500psi to 2000psi.
The customer has replaced the injecctor pump due to a shop advising that. The problem is not the engine but hydraulic system. He is a new owner and now see that the previous owner had replaced the computer and varous sensors. The pump has been removed, disassembled and inspected.
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