Komatsu GD555-5 Operation & Maintenance Manual page 193

OPERATION
CONSTRUCTING ROAD - METHOD OF MAKING V-DITCH
The procedure shown in the diagrams is for one side of the road. Repeat the same operation on the opposite side
of the road.
When carrying out Steps 4 and 7, articulate the frame.
1. Line of ditch: Light-duty digging
Determine the line of the ditch along the measured points.
Depth: approximately 50 mm (2.0 in)
Travel speed: approximately 2 km/h (1.2 MPH)
2. Second digging pass: Heavy-duty digging
3. Third digging pass: Heavy-duty digging
4. Finishing road shoulder
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OPERATION