The new myTopcon experience is now available. Please click here to access and start using all your apps. The legacy version will still be accessible until April 15th 2026.

Enable CAT SEA

The CAT Next Gen excavator must have active software enabling authentication (SEA) installed on the machine to integrate it with the Topcon MC-Max Excavator system. There are two different SEAs available for CAT excavators:
  • Third-party Grade Control Systems SEA (CAT P/N 602-8421)
    • Required for Topcon and other third-party grade control systems
    • Required for Topcon systems installed on machines previously installed with CAT 3D Grade Control and aftermarket Trimble (Sitech) grade control systems
  • CAT 3D Grade Control SEA (CAT P/N 603-3385)
    • Required for factory installed CAT 3D Grade Control and aftermarket Trimble (Sitech) grade control systems
  1. Install the SEA on the machine.
  2. Enable Third Party Grade Control Option during machine configuration. Failure to enable this option will result in no communications between the Topcon system and the machine. Contact a local CAT dealer for assistance if needed.
  3. Confirm that Third Party Grade Control functionality has been enabled from the status report of the machine. Contact a local CAT dealer for assistance if needed.
    ADDITIONAL INFORMATION:
    Figure: Enable CAT SEA

myTopcon NOW! support

Take your Topcon experience to the next level with myTopcon NOW! This platform is a self-service tool for your desktop or mobile device. 

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