Good day all, excuse my spelling and grammar I am English but trying my best. I have a komatsu PC200-7 The Display monitor burnt-out completely . I got the machine running again with the dead monitor but the excavator is very slow and the rev doesn't go up when working , sometimes the excavator speeds up for an hour or two then it slows down again and sometimes the engine gets overload and stalls any idea how I can bypass the controller box or can there be an fault on the ecp or release value
The monitor burnt out? the magic smoke escaped or has the monitor lost power and is off? I am sure there will be a fuse box somewhere on the machine, I would start by looking for a failed fuse.
Smoke coming out of monitor with smell of burning wires
Does not sound good. I would pull the monitor out and see if there is a harness behind it that burnt up.