Home > categories > Machinery & Equipment > Excavators > kobelco excavator 135 CPU RUM DATA FAILURE on lcd everything works normally, but idle speed slightly higher.?
Question:

kobelco excavator 135 CPU RUM DATA FAILURE on lcd everything works normally, but idle speed slightly higher.?

any suggestions gratefully recieved

Answer:

with the idle being slightly higher I would suspect the temp sending unit. that is if it serves as the computer temp reading sensor, if not then look for the one that does operate with the computer. if not that then I would look for a vacuum leak

Share to: