John Deere 1850: all source data
All 74 values recorded for this model, as the source lists them and in its units. The spec sheet shows the same data checked, typed and converted.
Overview
Production| Manufacturer | John Deere |
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| (no label) | Utility tractor |
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| (no label) | Built in Mannheim, Baden-Württemberg, Germany |
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Engine| (no label) | John Deere 2.9L 3-cyl diesel |
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| Fuel tank | 20.6 gal | 78.0 L |
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Transmission| (no label) | 8-speed synchromesh |
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| (no label) | 16-speed two-speed power shift |
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| (no label) | 12-speed creeper |
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Power| Engine (net) | 55 hp | 41.0 kW |
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| PTO (claimed) | 49.6 hp | 37.0 kW |
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Mechanical| (no label) | Two- or four-wheel drive |
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| Final drives | planetary |
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| (no label) | Power steering |
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| (no label) | Hydraulic disc brakes |
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| (no label) | ROPS. Optional MC1 cab, or CC2 cab after 1990. |
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Hydraulics| Type | closed-center constant pressure. |
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| Pressure | 2756 psi | 190.0 bar |
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| Pump flow | 11.6 gpm | 43.9 lpm |
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Hitch| Rear Type | II/I |
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| Control | position and draft control |
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| Rear lift (at 24"/610mm) | 2810 lbs | 1274 kg |
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Pto| Rear PTO | independent |
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| Clutch | hydraulic wet disc |
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| Rear PTO Type | 540 |
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| Rear PTO Type | 540/1000 |
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| Engine RPM | 540@2070 |
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Dimensions| Wheelbase | 80.7 inches | 204 cm |
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| Weight | 5997 to 6991 pounds |
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| Front tire | 7.50-16 |
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| 2WD Rear tire (2WD) | 16.9-30 |
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Electrical| Ground | negative |
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| Charging amps | 55 |
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| Batteries | 2 |
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| Battery volts | 12 |
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| Battery AH | 55 |
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Engine
Engine detail| (no label) | John Deere |
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| (no label) | diesel |
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| (no label) | 3-cylinder |
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| (no label) | liquid-cooled |
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| Displacement | 179.4 ci | 2.9 L |
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| Bore/Stroke | 4.19x4.33 inches | 106 x 110 mm |
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| Power (net) | 55 hp | 41.0 kW |
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| Air cleaner | dry |
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| Rated RPM | 2400 |
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| Torque | 143.8 lb-ft | 195.0 Nm |
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| Torque RPM | 1300 |
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| Starter volts | 12 |
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| Starter power | 4 hp | 3.0 kW |
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| Oil change | 200 h |
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Transmission
Transmission options| (no label) | 8-speed synchromesh |
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| (no label) | 16-speed two-speed power shift |
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| (no label) | 12-speed creeper |
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Transmission| Type | synchromesh |
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| Gears | 8 forward and 4 reverse |
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| (no label) | Four gears (1-4) in two ranges (I and II) plus reverse (R) range. |
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| Transmission | Power Synchron |
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| Type | two-speed power shift |
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| Gears | 16 forward and 8 reverse |
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| (no label) | The optional Power Synchron transmission adds a left-hand power shift to the basic transmission. |
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| Type | creeper |
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| Gears | 12 forward and 8 reverse |
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| Clutch | dry disc |
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Dimensions
Tires| 2WD Standard tires (ag) (2WD) | Front: 7.50-16. Rear: 16.9-30 |
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| 4WD Standard tires (ag) (4WD) | Front: 11.2-24. Rear: 16.9-30 |
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Dimensions| Wheelbase | 80.7 inches | 204 cm |
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| Length | 147.8 inches | 375 cm |
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| Width | 80.5 inches | 204 cm |
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| Height (cab) | 95.2 inches (MC1) | 241 cm |
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| Height (cab) | 93.2 inches (low-profile) | 236 cm |
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| 2WD Cab Shipping weight (2WD Cab) | 5997 lbs | 2720 kg |
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| 4WD Cab Shipping weight (4WD Cab) | 6991 lbs | 3171 kg |
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| Ground clearance | 24.5 inches | 62 cm |
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| Front tread | 49.6 to 80.9 inches | 125 to 205 cm |
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| Rear tread | 51.2 to 78.7 inches | 130 to 199 cm |
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