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John Deere 4850 Specifications
The John Deere 4850 is a 2-wheel drive or 4-wheel drive row-crop tractor from 50 Series. This model was manufactured from 1983 to 1988. The components of John Deere 4850 powerline system: a 466 cubic inches (7.6 L) John Deere 6466 4-stroke 6-cylinder direct injection turbocharged intercooled diesel engine with a rated power of 215 hp (160.3 kW), and full powershift transmission with 15 forward and 4 reverse gears.
The maximum travel speed (forward/reverse): 18 mph (28.9 kph) and 6 mph (9.7 kph). The closed center hydraulic system includes a gear pump with rated fluid flow of 29.5 gal/min (111.5 l/min). The hydraulic pressure is 157 bar (2275 psi). The John Deere 4850 is equipped with a hydrostatic power steering system, hydraulic wet disc brakes, 11.0x16 front tyres, and 20.8x38 rear tyres. The wheelbase is 118.5" (3000 mm) for 2WD tractors, and 117.1" (2970 mm) for 4WD tractors.
| Engine Specs |
Engine Model ................... John Deere 6466T
Engine Type ................... 4 Stroke six-cylinder turbocharged intercooled diesel
Number of Cylinders ................... 6
Displacement, cu.in (L) ................... 466 (7.64)
Cylinder Bore, in (mm) ................... 4.56 (116.0)
Piston Stroke, in (mm) ................... 4.75 (121.0)
Aspiration Type ................... Turbocharged
Rated Engine Power, hp (kW) ................... 215.0 (160.3)
Rated Engine Speed, rpm ................... 2200
Idle Speed, rpm ................... 800-2400
Maximum Torque, Nm (lb-ft) ................... 875 (647.5)
Torque Speed, rpm ................... 1540
Compression Ratio ................... 15:1
Firing Order ................... 1-5-3-6-2-4
Fuel System ................... Direct injection
Lubrication System ................... Pressure
Cooling System ................... Liquid-cooled
Air Cleaner Type ................... Dual dry element
Fuel Tank Capacity, gal (L) ................... 102.0 (386.1)
Oil Capacity, qts (L) ................... 21.0 (19.9)
Coolant Capacity, qts (L) ................... 32.0 (30.4)
Electrical System Rating, Volts ................... 12
Charging System ................... Alternator
Alternator Rating, Amps ................... 90
| Power Take-Off |
PTO Operational Type ................... Independent
PTO Power, hp (kW) ................... 190.0 (141.7)
PTO Clutch Type ................... Hydraulic disc
PTO Speed, rpm ................... 1000
PTO/Engine Speed, rpm ................... 1000/2200
| Transmission |
Transmission Model ................... Power Shift
Transmission Type ................... Full powershift
Gearbox Type ................... 15F/4R
Number of Forward Gears ................... 15
Number of Reverse Gears ................... 4
Clutch Type ................... Wet disc
Oil Capacity (2WD), qts (L) ................... 74.4 (70.4)
Oil Capacity (4WD), qts (L) ................... 86.4 (81.8)
Maximum Forward Speed, mph (kph) ................... 18.0 (28.9)
Maximum Reverse Speed, mph (kph) ................... 6.0 (9.7)
| Wheels and Tires |
Wheel Drive System ................... 2WD/4WD
Steering Configuration ................... Front steer
Steering System ................... Hydrostatic power
Brakes Type ................... Hydraulic wet disc
Front Tire Size (2WD) ................... 11.00x16
Rear Tire Size (2WD) ................... 20.8x38
Front Tire Size (4WD) ................... 18.4x26
Rear Tire Size (4WD) ................... 18.4x38
| Hydraulic System |
Hydraulic System Type ................... Closed center
Implement Pump Flow, gpm (Lpm) ................... 29.5 (111.5)
Hydraulic Pressure, Bar (psi) ................... 157 (2275)
Hydraulic Capacity (2WD), gal (L) ................... 18.6 (70.3)
Hydraulic Capacity (4WD), gal (L) ................... 21.5 (81.8)
Number of Standard Remote Valves ................... 2/3
3-Point Hitch Category ................... 3/3N
Lift Capacity at lift pin, lbs (kg) ................... 9600 (4355)
Upper Link Pin Diameter, in (mm) ................... 31.75 (1.25)
Upper Link Hole Diameter, in (mm) ................... 32.00 (1.26)
Lower Link Pin Diameter, in (mm) ................... 36.58 (1.44)
Lower Link Hole Diameter, in (mm) ................... 37.34 (1.47)
Pin Centerline (Lower to Upper), in (mm) ................... 685 (27.0)
| Dimensions and Weight |
Wheelbase (2WD), in (mm) ................... 118.5 (3000)
Wheelbase (4WD), in (mm) ................... 117.1 (2970)
Length (2WD), in (mm) ................... 179.7 (4560)
Length (4WD), in (mm) ................... 184.8 (4690)
Height (Cab), in (mm) ................... 117.8 (2990)
Overall Width, in (mm) ................... 118 (2990)
Ground Clearance, in (mm) ................... 14.9 (370)
Turning Radius, in (mm) ................... 213 (5400)
Shipping Weight, lbs (kg) ................... 17455 (7920)
Operating Weight, lbs (kg) ................... 18720 (8490)
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