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Did you ever figure out this problem?
Did you ever figure out this problem?
What is your full model and serial number? It sounds like the Operator Presence System is not sensing a operator in the seat. Like Prentice said - check seat switch and seat sw wiring. How many times is the ! light flashing? This is a code to point you in the right direction.
We worked on a Komatsu Diesel in the summer( Might be the same??) they have a solenoid lock on the bottom of the control valve. Check Seat switch and and voltage to solenoid. I think you can physically pull out ( Watch out for the mast dropping...Safety First :) )
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