Specifications, Service, and Repair of Farm and Lawn Tractors

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John Deere 850 Specifications

JD 850 Engine Technical Data

Engine Model - Yanmar 3T80-J
Engine Type - 3-cyl., liquid-cooled diesel
Number of Cylinders - Three
Displacement, cu in (L) - 78,0 (1,3)
Engine Bore, in (mm) - 3,15 (80,0)
Engine Stroke, in (mm) - 3,35 (85,0)
Rated Engine Power, hp (kW) - 25,0 (18,6)
Rated Engine Speed, rpm - 2600
Compression - 21.2:1
Air Cleaner - Paper element
Fuel Tank Capacity, gal (L) - 8,5 (32,3)
Coolant Capacity, qts (L) - 6,0 (5,7)
Electrical System Rating, Volts - 12
Electrical Ground - Negative
Battery Number - One

John Deere 850 Power Take-Off

Rear PTO Operational Type - Transmission / Live two-stage clutch (Opt)
PTO Horsepower, hp (kW) - 22,0 (16,4)
PTO Speeds, rpm - 540
PTO / Engine Speeds, rpm - 540/2258

John Deere 850 Transmission

Transmission Type - 8F/2R Gears
Number of Forward Speeds - 8
Number of Reverse Speeds - 2
Clutch - Dry disc
Clutch Disc Diameter, in (mm) - 8,3 (210)
Maximum Speed Forward, mph (kph) - 11,7 (18,8)
Service Brake - Differential mechanical expanding shoe

Wheels and Tires

Drive Wheels - 2WD/4WD
Steering Configuration - Front Steer
Steering System - Manual / Power (Opt)
Front Tire Size (Std) - 5.00-15
Rear Tire Size (Std) - 11.2-24
Front Tire Size (Turf) - 23x8.5-12
Rear Tire Size (Turf) - 13.6-16

JD 850 Hydraulics and Hitch

Hydraulic System Type - Open center
Hydraulic Capacity (Std), gal (L) - 4,8 (18,0)
Hydraulic Capacity (Opt), gal (L) - 5,3 (20,0)
3-Point Hitch Category - 1
Drawbar Power, hp (kW) - 17,8 (13,3)

John Deere 850 Dimensions and Weight

Wheelbase, in (mm) - 64 (1620)
Length, in (mm) - 117,7 (2980)
Height, in (mm) - 50,8 (1290)
Overall Width, in (mm) - 53,3 (1350)
Ground Clearance, in (mm) - 13,7 (340)
Front Tread, in (mm) - 42 to 58 (1060 to 1470)
Rear Tread, in (mm) - 42 to 50 (1060 to 1270)
Weight, lb (kg) - 2400 (1088)

John Deere 850 Loader

VIEW JOHN DEERE 80 FRONT END LOADER SPECS

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JOHN DEERE TRACTORS SPECIFICATIONS

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JOHN DEERE TRACTORS ATTACHMENTS
1023E 2025R 2210 2520 3032E
3046R 3520 4066R 4105 4200
4320 4400 4520 4600 4720
430 420 455 X300 X350
X485 X500 X590 X700 X738

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JOHN DEERE FRONT END LOADERS

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JOHN DEERE TRACTORS MAINTENANCE

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JOHN DEERE TRACTORS TROUBLESHOOTING
2640 3040 3310 3650 4100
5050D 5090R 5410 6105R 7200R
E130 L111 LA110 LT155 X300R

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