User Manual

Note: The laser and the elevation-control hub must be on one axis.

3. Enter the approximate grade value for the ∠ axis and the ∠ axis.

Note: The automatic slope searching range is ±1.5%. The approximated

grade should be within 1.5% of the final matched grade.

4. Connect a hand-held receiver and radio remote control to a grade rod.

5. Set the grade rod on the elevation-control hub.

6. Slide the receiver up/down the grade rod until the receiver’s LCD shows

an on-grade reading.

Note: The grade rod MUST be plumb.

7. Determine the HI by using the elevation-control hub as a reference.

8. Go to slope-control hub #1 and set the grade rod on the hub. Make sure

you DON’T change the height of the receiver on the grade rod.

9. Select “Grade Match” from the operational menu using the mode button.

10. Select the axis (∠ or ∠) that you are aligning using the up or down

buttons.

11. Press the enter button to confirm the selection. “Start” then “Wait”

appear in the LCD.

12. Hold the grade rod plumb and steady on slope-control hub #1 during

grade matching.

Note: “Grade Matching Complete” appears in the radio remote control LCD

when grade matching has been completed. If grade matching fails, a failure

message appears in the radio remote control LCD. (See the

“Troubleshooting” section of this manual for more information.)

Note: The matched grade value for the aligned axis appears in the laser’s and

two-way radio remote control’s LCDs.

Note: Alignment can take 1 to 5 minutes to complete.

13. Go to slope-control hub #2 and set the grade rod on the hub. Make sure

you DON’T change the height of the receiver on the grade rod.

14. Select “Grade Match” from the operational menu using the mode button.

15. Select the axis (∠ or ∠) that you are aligning using the up or down