Road Construction - Volvo G700B Series Operator's Manual

Operating techniques
132

Road construction

Lean wheels
1 Raise heel of moldboard
Road construction
Right-hand 'V' ditching
Place a line of stakes to define where the ditch will be con-
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structed.
Position the moldboard with the toe just outside the front right-
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hand wheel and the moldboard heel just ahead of the left-
hand tandem wheels.
Tilt the moldboard back and raise the heel to carry the material
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inside the left-hand tandem wheels.
Lean the front wheels left to counteract side thrust.
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Make the marking pass slowly.
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If using an articulated grader on a firm surface, keep the frame
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straight.
If the surface is loose, articulate the frame to keep the drive
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wheels on firm ground. Remember to remove the articulation
lock pins before articulating the grader. If the articulation fea-
ture will not be used, install the articulation lock pins.
Make the second pass with the front right-hand wheel on the
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bottom of the first cut. Cut a 3 to 1 slope at a slightly higher
speed.
A clean-up pass may be required as the windrow builds up on
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the roadside. Side shift the circle towards the ditch. Carry the
material well inside the toe of the moldboard to prevent spill-
age back into the ditch.
Cut the ditch back slope by using the MBCS system to move
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the moldboard to the right-hand side of the grader. Rotate the
circle counterclockwise and lower the left blade lift cylinder
while the circle is rotating. Refer to Moveable Blade Control
System page 107.