Operation
Motorgrader System Five Operator’s Manual
2-20
Sonic Tracker II
The Sonic Tracker II measures and controls the elevations of the
moldboard. A transducer, located in the bottom of the Tracker,
generates sound pulses like a speaker and listens for returned echoes
like a microphone. The Tracker measures the distance, and controls
grade from a physical grade reference, such as a curb, stringline, or
existing road surface.
The Sonic Tracker II attaches to the system through one quick
connect cable and attaches to the machine with a single bolt. At the
end of the day, Tracker should be removed for proper storage in the
carrying case.
Figure 2-27.
S
onic
T
racker
II
T