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  1. M

    topcon excavator 3dgps problems

    at this point I'm beginning to think they are!! The Topcon guy set up his on base and own plane to check it and swears all the sensors are working correctly.
  2. M

    topcon excavator 3dgps problems

    We are running all Topcon, and one of our rigs is a cat 374d excavator. Has anyone heard of the Topcon system changing control files? I had it re-calibrated a couple months ago and it was in tolerance for a little bit but I noticed it would get further and further out of tolerance. after about...
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