John Deere 850

John Deere 850 Compact Utility tractor Technical Specifications

John Deere 850 is a Row-Crop tractor that was produced by the John Deere between 1978 – 1989.

Below you will find detailed technical specifications for John Deere 850 covering engine types, horsepower ratings, weight, height, fuel type and tank volume, oil capacity and type, hydraulic system diagram, wiring diagram, battery specs, etc.

John Deere 850 Production




















Manufacturer:
Distributor: John Deere
Manufacturer: Yanmar
Type: Compact Utility tractor
Factory: Japan
Original price: $7,670 (1983 )
Original price: $11,000 (1989 )


John Deere 850 Power
















Engine:
Engine (gross): 25 hp
18.6 kW
Drawbar (claimed): 19 hp
14.2 kW
PTO (claimed): 22 hp
16.4 kW
Drawbar (tested): 17.77 hp
13.3 kW
PTO (tested): 22.27 hp
16.6 kW

John Deere 850 Electrical







Ground: negative
Battery volts: 12

John Deere 850 Mechanical




























Chassis: 4×2 2WD
  4×4 MFWD 4WD
Steering: manual
  power*Optional
Brakes: differential mechanical expanding shoe
Cab: Two-post ROPS.
Transmission: 8-speed gear

Capacity










Fuel: 8.5 gal
32.2 L
Hydraulic system: 4.75 gal
18.0 L
  5.25 gal
19.9 L *After 1984

Hydraulics













Type: open center
Capacity: 4.75 gal
18.0 L
  5.25 gal
19.9 L *After 1984
Pressure: 2030 psi
140.0 bar

Tracktor Hitch




Rear Type: I

Power Take-off (PTO)













Rear PTO: transmission*Early models, through the 1983 model year.
  live two-stage clutch*Introduced in 1984, tractor serial number 16001.
Rear RPM: 540 (1.375)
Engine RPM: 540@2258

John Deere 850 Engine detail


































Engine Detail
Yanmar 3T80-J
diesel
3-cylinder
liquid-cooled
Displacement: 78 ci
1.3 L
Bore/Stroke: 3.15×3.35 inches
80 x 85 mm
Power (gross): 25 hp
18.6 kW
Air cleaner: paper element
Compression: 21.2:1
Rated RPM: 2600
Starter volts: 12
Coolant capacity: 6 qts
5.7 L



John Deere 850 Transmission overview

Engine Oil









Type: gear
Gears: 8 forward and 2 reverse
Clutch: 210mm dry disc

John Deere 850 Dimensions

























Wheelbase: 64 inches
162 cm
Length: 117.7 inches
298 cm
Width: 53.3 inches
135 cm
Height (hood): 50.8 inches
129 cm
Weight: 2400 lbs
1088 kg
Ground clearance: 13.7 inches
34 cm
Front tread: 42 to 58 inches
106 to 147 cm
Rear tread: 42 to 50 inches
106 to 127 cm

John Deere 850 Tests

Nebraska Tractor Test 1280













































Nebraska Tractor Test 1280
Diesel 8-speed 2WD
June 12 – 21, 1978
Link: Nebraska Tractor Test 1280 file
PTO performance
Power at rated engine speed: 22.27 hp
16.6 kW
Fuel use: 1.6 gal/hour
6.1 l/hour
Power at rated PTO speed: 20.66 hp
15.4 kW
Fuel use: 1.4 gal/hour
5.3 l/hour
Drawbar performance
Max power: 17.77 hp
13.3 kW
Fuel use: 1.6 gal/hour
6.1 l/hour
Gear 6 used for power test.
Max pull: 2,699 lbs
1224 kg
Gear 4 used for pull test.

FAQ

Is John Deere 850 a good tractor?

The John Deere 850 is one of the great tractors in the Yanmar stable, and it has earned Yanmar a fantastic reputation.

How much oil does a John Deere 850 take?

Check out the John Deere 850 oil capacity and oil type in the engine specs section as it may vary across the engines. Keep in mind, that older models might have their oil capacity increased over time. You may compare between the early and late oil capacity.

Do tractors have VIN numbers?

Every tractor has a VIN number. The number is usually engraved below the driver’s seat. Tractor manufacturers put the number in different places on the tractor body.

What was the last year Yanmar made the 750

The John Deere 850 was an agricultural tractor model made from 1978 – 1989

Leave a Comment