Technical Description
The John Deere 490D is a mid-size hydraulic excavator engineered for durability, power, and versatility across diverse construction applications. It offers two boom and stick configurations: Option 1 delivers a max cutting height of 27.7 ft, max digging depth of 18.2 ft, and max reach along ground of 26.6 ft; Option 2 extends these capabilities to a 28.9 ft cutting height, 28.7 ft digging depth, and 28.3 ft reach, allowing adaptation to varying job demands. The 0.7 cubic yard bucket capacity supports effective material handling.
Powered by a John Deere 4276D engine with 276 cubic inch displacement, it generates 80 hp gross, 75 hp net at 2200 rpm, and max torque of 215 lb-ft at 1200 rpm, balanced for fuel efficiency and performance. The hydraulic system features a 31.7 gpm pump flow and relief valve pressure rated at 5050 psi, supporting dynamic boom, arm, and bucket operation. The excavator's operating weight is approximately 27,430 lbs, with 24-volt electrical system, 66 gallon fuel tank, and 34 gallon hydraulic fluid capacity. Its undercarriage includes 27.6 inch shoes, 6.6 ft track gauge, and delivers a drawbar pull of 18,300 lbs with max travel speed of 2.8 mph, enabling steady maneuverability in construction sites.
Dimensions include a 9.4 ft height to top of cab, 8.8 ft width over tracks, 25.2 ft shipping length, and 1.5 ft ground clearance. The swing mechanism supports 12.3 rpm pivot speed with a 7.3 ft tail swing radius, optimizing operational precision. Overall, the 490D combines robust mechanical design, powerful hydraulics, and versatile reach for efficient excavation and material handling tasks in mid-size heavy equipment applications.
