John Deere 2840 Specs ( 1977-1979 )
Production
| Description | Utility tractor / Built in Mannheim, Baden-Württemberg, Germany / Original price was $17,000 in 1979 |
|---|---|
| Manufacturer | John Deere |
Engine
| Engine type | John Deere 5.4L 6-cyl diesel |
|---|---|
| Air cleaner | paper elements |
| Bore/Stroke | 4.02x4.33 inches (102 x 110 mm) |
| Compression | 17.0:1 |
| Coolant capacity | 5 qts (4.7 L) |
| Description | John Deere / diesel / 6-cylinder / liquid-cooled |
| Displacement | 329 ci (5.4 L) |
| Rated RPM | 2500 |
| Starter volts | 12 |
| Drawbar (tested) | 64.86 hp (48.4 kW) |
| PTO (tested) | 80.65 hp (60.1 kW) |
Transmission
| Clutch | dry disc |
|---|---|
| Description | Three gears (1-3) in two ranges (I/II) plus reverse (R) range with a high/low power shift. |
| Gears | 12 forward and 6 reverse / 6 forward and 3 reverse |
| Transmission | Hi-Lo / sliding gear |
| Type | two-speed power shift |
| Transmission type | 12-speed two-speed power shift / 6-speed |
| Transmission type | 12-speed two-speed power shift / 6-speed |
Mechanical
| Cab | Open operator station. Two-post Roll-Gard ROPS optional. |
|---|---|
| Description | Differential hydraulic wet disc brakes |
| Differential lock | mechanical rear |
| Drive type | Two-wheel drive |
| Final drives | planetary |
| Steering | power assist |
Capacity
| Fuel | 28 gal (106.0 L) |
|---|---|
| Hydraulic system | 12.9 gal (48.8 L) |
Hydraulics
| Capacity | 12.9 gal (48.8 L) |
|---|---|
| Pump flow | 23 gpm (87.1 lpm) |
| Type | closed center |
| Valves | 2 |
Hitch
| Control | draft sensing |
|---|---|
| Rear Type | II |
PTO
| Clutch | hydraulic 300mm disc |
|---|---|
| Rear PTO | independent |
| Rear PTO Type | 540/1000 |
Electrical
| Batteries | 2 |
|---|---|
| Battery volts | 12 |
| Charging system | alternator |
| Ground | negative |
Dimensions & Tires
| Ballasted weight | 10500 lbs (4762 kg) |
|---|---|
| Clearance (front axle) | 21 inches (53 cm) |
| Description | Rack-and-pinion rear axle |
| Front tread | 57.82.4 to inches (146 to 0 cm) / 69 to 94 inches (wide axle) (175 to 238 cm) |
| Height (steering wheel) | 74 inches (187 cm) |
| Length | 160 inches (406 cm) |
| Operating weight | 8700 lbs (3946 kg) |
| Rear tread | 61 to 90 inches *ROPS or fenders limit minimum tread to 68 inches. (154 to 228 cm) |
| Wheelbase | 97 inches (246 cm) |
| Width | 90 inches (228 cm) |
| Front tire | 7.50-18 |
| Rear tire | 18.4-34 |
| Weight | 8700 lbs (3946 kg) |
| Wheelbase | 97 inches (246 cm) |
| Ag front | 7.50-18 |
| Ag rear | 18.4-34 / 15.5-38 |
2840 Serial Number Location
| Description | Serial number plate on the right side of the 2840 frame, above the front axle. |
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2840 Serial Numbers
| 1977 | 214909 |
|---|---|
| 1978 | 264711 |
| 1979 | 304654 |
| Description | FAQ: How to read a serial number table. |
John Deere 2840 attachments
| Description | front-end loader |
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Nebraska Tractor Test 1249
| Description | Diesel 12-speed 2WDJune 14 - 30, 1977Link: Nebraska Tractor Test 1249 file / PTO performance / Drawbar performance / Gear 4H used for power test. / Gear 2H used for pull test. |
|---|---|
| Fuel use | 5.3 gal/hour (20.1 l/hour) / 4.8 gal/hour (18.2 l/hour) / 5.2 gal/hour (19.7 l/hour) |
| Max power | 64.86 hp (48.4 kW) |
| Max pull | 8,386 lbs (3803 kg) |
| Power at rated engine speed | 80.65 hp (60.1 kW) |
| Power at rated PTO speed | 76.27 hp (56.9 kW) |
References
| Description | Tractors 40 to 80 hp published in 1976, by John Deere / Tractors 40 to 80 hp published in 1977, by John Deere |
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Speeds
| Description | With 18.4-34 rear tires. |
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Variants
| 3130 | similar John Deere model |
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