JOHN DEERE 844J WHEEL LOADER

Technical Description

The John Deere 844J is a 7-yard production-class wheel loader powered by a turbocharged, charge air-cooled 6125H diesel engine producing 330 net horsepower at 1,600 rpm and 1,390 lb-ft of torque at 900 rpm, with 60% torque rise. The machine features a variable axial piston pump delivering 169 gallons per minute at 3,500 psi relief pressure, enabling rapid cycle times of 5.9 seconds for raise, 1.9 seconds for dump, and 3.5 seconds for lower operations. The heaped bucket capacity ranges from 6.2 to 7.3 cubic yards with a breakout force of 49,320 pounds and static tipping load of 53,140 pounds. Dimensionally, the 844J measures 31.5 feet in length with bucket on ground, 12.4 feet to cab top, and 15.1 feet to hinge pin maximum height, with a 1.5-foot ground clearance and 20.7-foot turning radius. The loader operates on 29.5 R25 tires and weighs 68,320 pounds, featuring an automatic Powershift transmission with four forward and three reverse gears, achieving maximum forward and reverse speeds of 23.4 and 17 mph respectively. Hydraulic system capacity totals 80 gallons, while fuel capacity reaches 135 gallons, supporting extended operation on demanding job sites. The machine incorporates variable displacement load-sensing hydraulics and Smart-Shift technology for enhanced productivity and operator efficiency.