CATERPILLAR 140M3 MOTOR GRADERS

Technical Description

The 2015 Caterpillar 140M3 is a mid-size motor grader powered by a Cat C7 ACERT diesel engine delivering 183 horsepower at 2,000 rpm. The 6-cylinder engine features a 4.3-inch bore, 5-inch stroke, and 439 cubic-inch displacement, with a 39% torque rise producing 776 lb-ft maximum torque. The transmission offers 6 forward and 3 reverse gears with Grade Control XSLP capability. The grader measures 397.6 inches in length and 97.6 inches in width, standing 148.8 inches tall with an operating weight of 33,356 pounds. The 14-foot moldboard with 6-inch end bits and 8-inch cutting edges can achieve a maximum depth of cut of 28.9 inches and lift 18.9 inches above ground, with blade tip articulation of 40 degrees forward and 5 degrees backward. The hydraulic system operates at 3,503 psi with flow rates from 0–40.9 gallons per minute, controlled by electro-hydraulic load sensing. The articulating frame provides 20 degrees steering angle with 47.5-degree total steering capability, while the front axle features 18 degrees lean and 32 degrees oscillation for superior terrain adaptability. Equipped with 17.5-inch tires and featuring full 360-degree circle drive capability with seven moldboard positions, this grader delivers comprehensive grading precision and versatility for road construction and maintenance applications.