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  1. J

    Komatsu D31 Battery Relay

    I ended up replacing the ignition switch and battery disconnect relay. I also replaced burnt up wire from switch to relay. Started right up and worked all day no problems.
  2. J

    Komatsu D31 Battery Relay

    Thank you for the video, my switch is the negative disconnect type. I was not able to really understand what he was doing while testing the negative switch as his hands and the switch it self was blocking the view of the placement of the leads while checking for continuity. I was able to track...
  3. J

    Komatsu D31 Battery Relay

    Hello, I have been having problems keeping batteries charged on my D31. It seems that the alternator is working ok so I assume they were draining while it was setting. Yesterday while running the machine I suddenly found myself engulfed in dense smoke. I shut dozer down immediately and started...
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