1994-2023 JOHN DEERE 544J POWERLLEL W/COUPLER WHEEL LOADERS

Technical Description

The John Deere 544J Powerllel w/Coupler is a versatile mid-sized wheel loader featuring a robust 6-cylinder, turbocharged charge-air cooled 6068H engine delivering 149 hp (111 kW) at 2200 rpm, with a 38% torque rise at 1600 rpm. It provides a breakout force of 19,684 lbs (8,929 kg) and a heaped bucket capacity of 3 cubic yards (2 m³) with an 8.9 ft (2.7 m) wide bucket. The loader offers a maximum dump clearance of 9 ft (3 m) and a hinge pin height of 12.7 ft (4 m), enabling efficient material handling and high reach. Dimensions include a ground clearance of 17.6 ft (5 m), overall length of 25 ft (8 m) with the bucket on the ground, a wheelbase of 9.7 ft (3 m), and an operating height to the top of the cab of 10.7 ft (3 m). It weighs approximately 30,245 lbs (13,719 kg) and runs on 20.5 R25 tires, designed for good stability and mobility. The hydraulic system, powered by a variable axial piston pump with 50 gal/min (189 l/min) flow capacity, offers fast cycle times—raise time of 5.5 seconds, dump time of 1.4 seconds, and lower time of 2.5 seconds—with a relief valve set at 3650 psi. Transmission is an automatic powershift type providing four forward gears up to 23.8 mph (37 kph) and three reverse gears with a max speed of 15 mph (24 kph). The rear axle has 24° oscillation, and the machine operates on a 24 V electrical system with an 80 A alternator, supporting heavy-duty construction applications. Fuel capacity is 85 gallons (322 liters), with ample fluid capacities for engine oil, cooling, hydraulic, and transmission systems for extended operational reliability.