Free theory lesson · Grader
Motor grader fundamentals
Introduction to grader blade geometry, articulation, road shaping, drainage and surface finishing.
A motor grader uses a long adjustable blade to shape and finish surfaces. Theory includes blade geometry, circle and drawbar, tandem drive, road camber, drainage and surface finish. Components include mouldboard, cutting edge, circle, drawbar, articulation joint, tandem wheels and scarifier.
Safe work principles: plan the work area and traffic control; understand blind spots and articulation pinch points; inspect blade components; work to site specifications; protect pedestrians and other vehicles.
Knowledge check: What is road camber? Why is drainage important in road finishing?
This lesson is educational theory material. Always follow machine-specific instructions, workplace procedures and qualified supervision during practical operation.
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