2002-2007 JOHN DEERE 544B WHEEL LOADER

Technical Description

The John Deere 544B Wheel Loader is a robust construction machine featuring a turbocharged 6-cylinder engine with a displacement of 414 cu in (6.8 L), delivering 115 hp (86 kW) gross and 105 hp (78 kW) net power at 2200 rpm. It produces a maximum torque of 325 lb-ft (441 Nm) at 1400 rpm, enabling strong performance for heavy-duty tasks. The loader has a breakout force of 17,885 lbs (79.6 kN) and a bucket capacity of 1.8 cubic yards (heaped) with a width of 7.7 ft (2.34 m), offering efficient material handling. The hydraulic system includes an engine-driven vane pump with a flow capacity of 44.5 gal/min (168 L/min) and a relief valve setting of 2250 psi, providing smooth and powerful operation of the loader arms and attachments. The transmission is a planetary powershift type with 4 forward and 2 reverse gears, supporting a maximum speed of 25 mph (40 km/h) forward and 10 mph (16 km/h) in reverse. Dimensionally, the loader has a ground clearance of 1.3 ft (0.4 m), a cab height of 10.1 ft (3 m), and a wheelbase of 6.7 ft (2 m). The bucket achieves a max hinge pin height of 11.3 ft (3.4 m) and dump clearance of 8.9 ft (2.7 m). Operating weight is approximately 21,775 lbs (9,877 kg), with a fuel capacity of 40 gallons (151 L) and hydraulic fluid capacity of 12 gallons (45 L). Tires measure 17.5-25, and the rear axle oscillates 22 degrees for enhanced terrain adaptability. The loader’s turning radius is 13.9 ft (4.2 m), ensuring efficient maneuverability on job sites.