HI there does anyone know why the hammer circuit wont work on my hitachi 130 5 its a 2014, when u press the pedal on the floor it raises the engine revs but will not pressurise the pipes going to my hydraulic hammer. it was working fine but we had a few electrical issues where wires were broken at rear of cab but they have been fixed and machine runs perfect now but just no hammer circuit working.. thank you
Good day Just a thought, it is easy to connect some hammer lines the wrong way around. Kind regards Uffex
In one way flow, if you're actuating it the wrong way all the oil will go from the main control valve straight back to the tank. Possible that the wires were connected backwards when they were repaired?