On/O
Menu
Mode
Select
Knob
Digital
Display
Mode
Select
Display
Set
Figure 4-87. TopCon Sonic Grade Control Box
7. Push the power button to turn the system ON.
(Figure 4-87)
8. Turn the Mode Select Knob clockwise (or coun-
terclockwise depending on last setting used) until
the number 14 appears in the Mode Select display
window.
9. Press and hold the Set button for three seconds
and release.
10. Press Set button again.
11. Turn the Mode Select Knob until EXT (external)
appears in the Mode Select display window.
12. Press Set button again, then press Menu button.
13. Turn the Mode Select Knob until the number 50
appears in the Mode Select display window.
14. Repeat Steps 5 and 6 to set.
15. Turn the Mode Select Knob until the number 16
appears in the Mode Select display window. If the
tow arm cylinder does not begin to move, continue
turning the knob until it does. DO NOT raise or
lower the screed.
NOTE: This is the valve offset setting, which varies
from paver to paver. Make a note of this
number on the Notes page provided in this
manual for future reference.
16. Repeat Steps 5 and 6 to set.
17. Turn the Mode Select Knob until the number 14
appears in the Mode Select display window. If the
tow arm cylinder does not begin to move, continue
turning the knob until it does.
NOTE: This is the elevation setting, which varies from
paver to paver. Make a note of this number
on the Notes page provided in this manual for
future reference.
Setting this value too high will result in
overshooting the grade.
18. Repeat Steps 5 and 6 to set.
19. Turn the Mode Select Knob until the number 15
appears in the Mode Select display window.
20. Press the Set button. You are now ready to pave.
Screed Sloping ExtensionsScreed Sloping Extensions
The sloping extensions option provides the means of
matching curb and gutter to reduce handwork while
paving. The hydraulic slope extensions provide 0 - 8
percent slope.
To operate:
• Place the Berm/Slope selector switch in the SLOPE
position.
• Press the Slope/Berm switch up and down to adjust
the extensions.
Operation
8608 Commercial Paver4-42
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