Operating techniques
142 Road construction
Dragging a shoulder (right-hand side)
n Check the material you will be grading. If it is dry, using water
to dampen it will result in a better finished surface.
n Position the right toe of the moldboard in line with the outer
edge of the front right-hand wheel.
n Angle the moldboard 30 to 45 degrees from the center line of
the frame. Tilt the moldboard forward to drag the material, not
to cut it.
n Lean the front wheels to the left to counteract side trust.
n Deposit the material outside the left-hand tandem wheels onto
the edge of the road.
n On the next pass, collect the windrow from the edge of the
road and feather the material back onto the shoulder surface.
Remember to adjust the moldboard to create a gentle slope
towards the ditch.
n Ensure you clean up the road surface before allowing traffic to
use the road way.
NOTE! Procedures and illustrations shown are for right-hand
side grading. For left-hand side grading, lean the front wheels
and position the moldboard opposite to the description and
illustrations shown.
Lean wheels
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