Topcon Motorgrader, Operator'S Manual

Page: 138 / 172

Grading Applications
Motorgrader System Five Operator’s Manual
5-46
In some cases, the existing surface may not be usable as the grade
reference. Set up a Sonic Stringline as shown above, or use short pins
welded to a plate to set the stringline.
Figure 5-74.
Grading On Curves
The Cross Slope System always cuts the desired slope perpendicular
to the graders draw bar assembly of the "A"-frame.
When grading corners or curves, articulate the grader to keep the
draw bar assembly perpendicular to the direction of slope.
Figure 5-75.
SONIC
STRING
EXISTING
SURFACE
%
SLOPE
%
SLOPE
%
SLOPE