I have a Komatsu D39PX-21 Ser# above 1501. I was running the dozer and then it completely shut down. The dash went blank. I found that a 30 amp fuse was blown in the second fuse panel located in the engine compartment. Replaced it and it blew immediately once the key was turned to the run position. Is this a common problem with the D39PX? Any ideas where to start? Any help would be appreciated.
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