John Deere 1840 Specs ( 1979-1982 )
Overview
The John Deere 1840 is a versatile utility tractor produced between 1979 and 1982, featuring a robust 70 hp 4-cylinder diesel engine and a closed-center hydraulic system. Manufactured in Mannheim, Germany, this model offers flexibility with both two- and four-wheel drive options and multiple transmission configurations including a 16-speed power shift.
Ideal Applications
Material Handling:
Equipped with a front-end loader attachment and power steering, this tractor is well-suited for moving bulk materials and general farm lifting tasks.
Field Work:
With a Category II/I rear hitch featuring position and draft control, plus 60 hp at the independent rear PTO, it effectively manages various implements for soil preparation and maintenance.
Heavy-Duty Utility Tasks:
The combination of planetary final drives, wet disc brakes, and a mechanical rear differential lock allows for reliable operation in demanding terrain and varied agricultural conditions.
Production
| Description | Utility tractor / Built in Mannheim, Baden-Württemberg, Germany / The Canadian-market 1840 is similar to the US 2440 model. |
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| Manufacturer | John Deere |
Engine
| Engine type | John Deere 3.9L 4-cyl diesel |
|---|---|
| Fuel tank | 25.1 gal (95.0 L) |
| Bore/Stroke | 4.19x4.33 inches (106 x 110 mm) |
| Compression | 16.8:1 |
| Description | John Deere / diesel / 4-cylinder / liquid-cooled |
| Displacement | 239 ci (3.9 L) |
| Exhaust valve clearance | 0.018 inches (0.457 mm) |
| Firing order | 1-3-4-2 |
| Idle RPM | 800-2660 |
| Intake valve clearance | 0.014 inches (0.356 mm) |
| Operating RPM | 1300-2500 |
| Power (net) | 70 hp (52.2 kW) |
| Rated RPM | 2500 |
| Starter volts | 12 |
| Torque | 170 lb-ft (230.5 Nm) |
| Torque RPM | 1300 |
| Engine (net) | 70 hp (52.2 kW) |
| PTO (claimed) | 60 hp (44.7 kW) |
Transmission
| Clutch | dry disc |
|---|---|
| Description | Four gears in two ranges, plus reverse range. / Four synchronized gears in two ranges, plus reverse range. |
| Gears | 8 forward and 4 reverse / 8 forward and 4 reverse / 16 forward and 8 reverse |
| Transmission | Top-Shaft Synchronized / Hi-Lo |
| Type | unsynchronized gear / partially synchronized / two-speed power shift |
| Transmission type | 8-speed unsynchronized gear / 8-speed partially synchronized / 16-speed two-speed power shift |
| Transmission type | 8-speed unsynchronized gear / 8-speed partially synchronized / 16-speed two-speed power shift |
Mechanical
| Cab | Open operator station. Cab optional. |
|---|---|
| Description | Power steering / Wet disc brakes |
| Differential lock | mechanical rear |
| Drive type | Two- or four-wheel drive |
| Final drives | planetary |
Hydraulics
| Type | closed center |
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Hitch
| Control | position and draft control |
|---|---|
| Rear Type | II/I |
PTO
| Rear PTO | independent |
|---|---|
| Rear PTO Type | 540 (1.375) |
Electrical
| Batteries | 2 |
|---|---|
| Battery volts | 12 |
| Charging amps | 33 |
| Charging system | alternator |
| Charging volts | 14 |
| Ground | negative |
Dimensions & Tires
| Height (hood) | 62 inches (157 cm) |
|---|---|
| Length | 147 inches (373 cm) |
| Weight | 5476 lbs (2483 kg) |
| Wheelbase | 89.7 inches (227 cm) |
| Front tire | 7.50-16 |
| Rear tire | 15.5-38 |
| Weight | 5476 lbs (2483 kg) |
| Wheelbase | 89.7 inches (227 cm) |
| Ag front | 7.50-16 |
| Ag rear | 15.5-38 / 16.9-30 |
John Deere 1840 attachments
| Description | front-end loader |
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References
| Description | Operator's Manual 145 Loader (OMW21474) / Operator's Manual 1640, 1840 and 2040 Tractors published by John Deere / New Profiles of Performance published in 1979, by John Deere |
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Speeds
| Description | With 15.5-38 rear tires. |
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