Grading a Road Using a Stringline
P/N 7010-0344
5-17
Press both red buttons on the Smart Knob to set the Tracker to On-
Grade. The Control Box will then read the depth of cut below the
stringline at that location. In this example, the display indicates that
the cutting edge is 1.65 feet below the stringline. Since the desired
depth is 2.00 feet, the grade is .35 feet high at this location.
Figure 5-21.
S
onic
T
racker
II
1.65
F
T
CONTROL MODE
G
A
INS
E
T/+/
—
/T
R
IMM
E
NU
2.0%
-
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