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John Deere 844

John Deere 844 tractor
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The John Deere 844 is a wheel loader produced from 1978 to 1986. It features a John Deere 15.7L 8-cylinder turbocharged diesel engine delivering 260 hp net and 290 hp gross. The transmission is a 4-speed power shift with 4 forward and 3 reverse gears. It has a hydraulic system with 2500 psi pressure and a total flow of 153.2 gpm. The loader has a wheelbase of 126 inches, an operating weight of 52370 lbs, and industrial tires sized 26.5-25 or 29.5-25. The cab is standard with heat and optional air-conditioning. Electrical system includes a 70 amp alternator and two 12-volt batteries. Attachments include a front-end loader with a lift capacity of 26620 lbs and breakout force of 36290 lbs.
John Deere 844wheel loader15.7L engine290 hppower shift transmissionhydraulicsdimensionsattachments
Power-
Founded-
Model844

Technical Specifications

Detailed specifications and technical data for John Deere 844

Power

Engine (net):260 hp (193.9 kW)
Engine (gross):290 hp (216.3 kW)

Tires

Industrial rear:26.5-25, 29.5-25
Industrial front:26.5-25, 29.5-25

Engine

Type:turbocharged diesel
Model:John Deere 8-955T
Torque:858 lb-ft (1163.4 Nm)
Cooling:liquid-cooled
Starter:electric
Cylinders:8-cylinder
Fuel tank:100 gal (378.5 L)
Rated RPM:2100
Torque RPM:1300
Air cleaner:dry
Bore/Stroke:5.51x5.00 inches (140 x 127 mm)
Power (net):260 hp (193.9 kW)
Displacement:955 ci (15.7 L)
Oil capacity:41 qts (38.8 L)
Power (gross):290 hp (216.3 kW)
Starter volts:24
Coolant capacity:80 qts (75.7 L)

Dimensions

Length:315.4 inches (801 cm)
Wheelbase:126 inches (320 cm)
Rear tread:90 inches (228 cm)
Front tread:90 inches (228 cm)
Height (cab):140.4 inches (356 cm)
Height (exhaust):125.7 inches (319 cm)
Operating weight:52370 lbs (23755 kg)

Electrical

Batteries:2
Battery CCA:625
Battery volts:12
Charging amps:70
Charging system:alternator

Hydraulics

Pressure:2500 psi (172.4 bar)
Pump flow:74.6 gpm (loader) (282.4 lpm)
Total flow:153.2 gpm (579.9 lpm)

Mechanical

Cab:standard with heat. Air-conditioning optional.

Production

Type:Wheel Loader
Manufacturer:John Deere
Years produced:1978 - 1986

Attachments

Loader:26620 lbs lift (full at pin) (12074 kg), 36290 lbs breakout (16461 kg), 50° dump, 43.7 inches reach (dumped) (110 cm), 40° rollback (ground line), 166.7 inches height (at pin) (423 cm), 123.6 inches clearance (dumped) (313 cm), boom cyl: 7.50 inches (19 cm), boom rod: 3.75 inches (9 cm), bucket cyl: 7.50 inches (19 cm), bucket rod: 3.75 inches (9 cm), raise: 7.0s, dump: 2.0s, lower: 4.0s, Bucket width: 129.1 inches (327 cm)
front-end loader:-

Transmission

Type:power shift
Gears:4 forward and 3 reverse