Specifications, Service and Repair of Farm and Lawn Tractors

________________________________________________________________________________

John Deere 1850 Technical Data

John Deere 1850 Engine Specifications

Engine Model ....................... John Deere
Engine Type ....................... 4 cycle, three-cylinder liquid cooled diesel
Number of Cylinders ....................... 3
Displacement, cu in (L) ....................... 179.4 (2.9)
Engine Bore, in (mm) ....................... 4.19 (107.0)
Engine Stroke, in (mm) ....................... 4.33 (110.0)
Aspiration ....................... Natural
Rated Engine Power, hp (kW) ....................... 55.0 (41.0)
Rated Engine Speed, rpm ....................... 2400
Maximum Torque, Nm (ft-lbs) ....................... 195 (144)
Torque Speed, rpm ....................... 1300
Compression ....................... 16.7:1
Firing Order ....................... 1-2-3
Air Cleaner ....................... Dry
Fuel Tank Capacity, gal (L) ....................... 20.5 (78.0)
Electrical System Rating, Volts ....................... 12
Charging System ....................... Alternator
Alternator Rating, Amps ....................... 55
Battery Rating, Ah ....................... 2x55

JD 1850 Power Take-Off

PTO Operational Type ....................... Independent
PTO Horsepower, hp (kW) ....................... 45.1 (33.4)
Clutch ....................... Hydraulic wet disc
PTO Speed, rpm ....................... 540, 540/1000
PTO / Engine Speed, rpm ....................... 540/2070

John Deere 1850 Transmission

Transmission Type (Std) ....................... 8F/4R, Synchromesh
Number of Forward Gears ....................... 8
Number of Reverse Gears ....................... 4
Maximum Forward Speed, mph (kph) ....................... 17.3 (27.9)
Maximum Reverse Speed, mph (kph) ....................... 7.5 (12.1)

Transmission Type (Opt) ....................... 16F/8R, Power Synchron
Number of Forward Gears ....................... 16
Number of Reverse Gears ....................... 8
Maximum Forward Speed, mph (kph) ....................... 18.0 (29.0)
Maximum Reverse Speed, mph (kph) ....................... 7.8 (12.6)

Transmission Type (Opt) ....................... 12F/8R, Creeper
Number of Forward Gears ....................... 12
Number of Reverse Gears ....................... 8
Clutch ....................... Dry disc
Maximum Forward Speed, mph (kph) ....................... 1.1 (1.7)
Maximum Reverse Speed, mph (kph) ....................... 1.6 (2.6)
Service Brake ....................... Hydraulic disc

JD 1850 Wheels and Tires

Drive Wheels ....................... 2WD/4WD
Steering Configuration ....................... Front Steer
Steering System ....................... Hydrostatic power
Front Tire Size (2WD) ....................... 7.50x16
Rear Tire Size (2WD) ....................... 16.9x30
Front Tire Size (4WD) ....................... 11.2x24
Rear Tire Size (4WD) ....................... 16.9x30
Front Tread, in (mm) ....................... 49.6-80.9 (1250-2048)
Rear Tread, in (mm) ....................... 51.2-78.7 (1300-1990)

John Deere 1850 Hydraulics and Hitch

Hydraulic System Type ....................... Closed center
Implement Pump Type ....................... Variable displacement pump
Implement Pump Flow, gpm (Lpm) ....................... 11.6 (43.9)
Hydraulic Pressure, Bar (psi) ....................... 190 (2755)
3-Point Hitch Category ....................... 2/1
Draft Sensing or Lift Control ....................... Position and depth control
Standard Lift Capacity, 24" (600 mm) behind pin, lb (kg) ....................... 2810 (1270)

JD 1850 Dimensions and Weight

Wheelbase, in (mm) ....................... 80.7 (2040)
Length, in (mm) ....................... 147.8 (3750)
Height, in (mm) ....................... 95.2 (2415)
Overall Width, in (mm) ....................... 74 (1870)
Ground Clearance, in (mm) ....................... 24.5 (620)
Weight (Cab, 2WD), lb (kg) ....................... 5995 (2720)
Weight (Cab, 4WD), lb (kg) ....................... 6990 (3170)

________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

JOHN DEERE TRACTORS SPECIFICATIONS

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

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

________________________________________________________________________________________

JOHN DEERE FRONT END LOADERS

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

JOHN DEERE TRACTORS MAINTENANCE

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

________________________________________________________________________________________

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

________________________________________________________________________________________