I Have a komatsu PC45r mini excavator and all of the sudden the safety stopped working. It is pulled down all the way but the boom is still not working. Any hints on where to fix that?
not going to look up your particular model but some have a safety interlock handle on both control towers, if so make sure there both down, if that's not the case then you have a faulty micro switch at the interlock handle, a faulty interlock solenoid, or a problem with the wiring, if its new enough to have a ECM then that could be another issue, in any case I'd suggest a mechanic.
