Operation Manual

Rugby 410/420 DG Troubleshooting26
Negative Grade Disabled
• The ability to enter negative grade has been disabled
in the second setup screen.
Grade greater than 15%
• If attempting to enter grades greater than 15%, the
cross axis grade is limited to 1%.
• Four similar screens are possible.
Lost Communication
• The remote is out of range. Move closer.
• The remote is not in the line if sight of the laser.