1988-1993 JOHN DEERE 444 WHEEL LOADER

Technical Description

The John Deere 444 Wheel Loader is a mid-sized, heavy-duty machine designed for material handling and earthmoving tasks. It features a naturally aspirated 6-cylinder engine with a displacement of 329 cubic inches, delivering 85 hp net power at 2400 rpm and 95 hp gross power. The engine produces maximum torque of 228 lb-ft at 1400 rpm. The loader has a powershift planetary transmission with 4 forward and 2 reverse gears, reaching a maximum speed of 22.5 mph forward and 8.5 mph in reverse. The hydraulic system includes an engine-driven vane pump with a flow capacity of 39.5 gallons per minute and a relief valve setting at 2250 psi, supporting efficient loader operation. Fluid capacities include 40 gallons of fuel, 13 gallons of hydraulic fluid, and various engine and transmission oils totaling around 28 gallons. Dimensionally, the loader has a length of 21.7 ft with the bucket on the ground, a wheelbase of 7.9 ft, and a top cab height of 10.2 ft. Ground clearance is 1.3 ft, and the turning radius is 13.9 ft. It operates at an operating weight of approximately 18,870 lbs and rides on 15.5-25 tires with 22 degrees rear axle oscillation for enhanced traction and stability. The machine is equipped for rugged applications with a static tipping load of 10,122 lbs and features a 12 V electrical system. Its robust build and performance specifications make it suitable for construction, agricultural, and industrial use requiring reliable mid-size loader capabilities.