JOHN DEERE 890A CRAWLER EXCAVATOR

Technical Description

The John Deere 890A excavator is a robust and versatile hydraulic excavator designed for heavy-duty construction and earthmoving tasks. It features a 619 cubic inch, turbocharged 500 series engine with aftercooler, delivering 210 horsepower at 2100 rpm and a maximum torque of 655 lb-ft measured at 1300 rpm. The machine’s operating weight is approximately 85,000 pounds, ensuring stability during demanding excavation operations. Its dimensions include a shipping height of 12 feet, a shipping length close to 39.7 feet, and a width of 12 feet to the outside of the tracks, enabling easy transport and maneuverability on site. The hydraulic system of the 890A is equipped with a pump flow capacity of 50 gallons per minute and a relief valve pressure set at 2900 psi, supported by a hydraulic fluid capacity of 92 gallons, which contributes to smooth and precise hydraulic operations. Other fluid capacities include 36 gallons of engine oil, 19 gallons for the cooling system, and 9.3 gallons for swing drive fluid. The excavator operates on a 24-volt electrical system with a 42-amp alternator, supporting reliable engine start-up and operation. The swing mechanism allows a rotation speed of 5.5 rpm, suitable for efficient digging and material handling. Its 65-foot boom/stick option enables extended reach and diverse attachments adaptability, making the John Deere 890A a powerful contender in mid-to-large scale excavation projects. Overall, the 890A combines high torque, solid hydraulic performance, significant operating weight, and versatile configuration options, ensuring it meets the rigorous demands of professional construction environments.