Sonic Tracker Setup
P/N 7010-0344
4-7
When tracking an existing road, position the Tracker 14 - 30 inches.
This will leave enough distance to adjust the Working Window to On
Grade when the blade is moved over to match the first pass.
Figure 4-8.
When tracking next to a barrier wall, lower the Tracker to reduce the
size of the Sonic Footprint. Position the Tracker so it just picks up the
edge of the road, and does not hit the side of the barrier wall. The
concrete is porous enough to reflect sound waves and give a false
reading even though it is vertical.
Figure 4-9.
S
onic
T
racker
II
T
EXISTING
ROAD
14.0"
to
30.0"
RECOMMENDED
DISTANCE
S
onic
T
racker
II
T
EXISTING
ROAD
14.0"
to
18.0"
RECOMMENDED
DISTANCE
CONCRETE
BARRIER
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