JOHN DEERE 444E WHEEL LOADER

Technical Description

The John Deere 444E Wheel Loader is a robust, versatile machine designed for heavy-duty construction and industrial applications. Powered by a turbocharged 4-cylinder John Deere 4276T diesel engine, it delivers 100 hp gross (95 hp net) at 2200 rpm with peak torque at 1300 rpm, ensuring efficient performance under demanding conditions. The loader features a hydrostatic transmission with 2 forward and 2 reverse gears, enabling a maximum travel speed of 20 mph (32 kph) in both directions. Its articulated frame and power steering, combined with a 15 ft (5 m) turning radius, provide excellent maneuverability. Equipped with a bucket capacity of 1.8 cubic yards (heaped) and 1.6 cubic yards (struck), the loader has a breakout force of 18,298 lbs (8,300 kg), making it capable of handling heavy loads. The bucket width measures 8 ft (2 m) and it achieves a dump clearance of 9.3 ft (3 m) at maximum raise, with a hinge pin height of 11.8 ft (3 m). Hydraulic functions include a pump flow capacity of 38.8 gal/min (144 l/min), dump time of 1 second, lower time of 3.1 seconds, and raise time of 5.3 seconds, driven by a gear pump system operating at a relief valve setting of 2987 psi. The 444E measures 20.9 ft (6 m) in length with the bucket on the ground, 7.4 ft (2 m) width over tires, and a height of 10.5 ft (3 m) to the top of the cab. It weighs approximately 18,871 lbs (8,560 kg) and has 15.5-25 tires. The hydraulic system has a capacity of 13.3 gal (49 l) and the fuel tank holds 37 gallons (140 l). Other features include rear axle oscillation of 26°, 12 V electrical system with a 90 A alternator, and four-wheel wet-disk brakes for reliable stopping power.