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Performance chart
Below diagram gives guidelines for calculation of the dump truck gradeability performance related to rolling + grade resistance. The traction capabilities depend on the ground conditions and surroundings, i.e. available wheel grip (friction), tyre pattern, weight on the wheels, etc. How to find gradeability perfomance: 1.Read from vehicle weight (A) up to the percentage grade (B). 2.From this point, read horizontally to the curve highest speed range (C). 3.Then down to maximum speed (D).
