John Deere 840 VS Allis Chalmers 18-30 specs comparison
John Deere 840
General Infos| Make | John Deere |
| Model | 840 |
| Country | United states |
| Production | From 1976 Until 1986 |
| Price | - |
| Tractor type | Utility tractor |
| Fuel | diesel |
| Service repair manual | John Deere 840 Manual |
Dimensions, sizes and tires
| AG front tires | 6.50-16 |
| AG rear tires | 12.4-32 |
| Lawn front tires | - |
| Lawn rear tires | - |
| Indus front tires | - |
| Indus rear tires | - |
| Weight | 5004 lbs or 2269 kg |
| Length | 138 inches [350 cm] |
| Width | 65.4 inches [166 cm] |
| Height | 94.1 inches [239 cm] |
| Wheelbase | 74.4 inches [188 cm] |
| Ground clearance | - |
| Turning radius | - |
| Rear tread size | 53.5 to 73.2 inches |
| Front tread size | 49.6 to 79.5 inches |
| Turning radius | - |
Horsepower and engin specs
| Engine capacity | 179 ci or 2.9 L |
| Cylinders | 3 cylinders |
| Engine power | 37.5 hp or 28.0 kW |
| Engine RPM | 2400 (rpm) |
| Torque | - | Torque RPM | - |
| Fuel type | diesel |
| Fuel injection | direct injection |
| Fuel tank size | 20.6 gal or 78.0 L |
| Oil capacity | 7.4 qts or 7.0 L |
| Oil change | - |
| Starter motor | - |
| Starter volts | 12 V |
| Parts And Accessories | John Deere 840 Parts |
| Batteries number | 2 |
| Batteries voltage | 12 V |
| Battries Amps | - |
| Cold Amps | - |
| Ground force | negative |
| Charging system | alternator |
| Charging Volts | - |
| Charging Amps | 33 amps |
| Trans system | - |
| Trans type | two-speed power shift |
| Trans gears | 16 forward and 8 reverse |
| Clutch system | dry disc |
| Wheel drive | 4x2 2WD |
| Final drive | planetary |
| Steering | manual |
| Braking system | hydraulic wet disc |
| Cabin type | Four-post ROPS |
| Differentiel lock | - |
| System | closed center |
| Valves | - |
| Pump flow | 6.1 gpm or 23.1 lpm |
| SVC flow | - |
| Steering flow | - |
| Tank capacity | 10.8 gal or 40.9 L |
| Hydraulic pressure | - |
| Max flow | - |
| Drawbar type | - |
| Claimed power | - |
| Drawbar horsepower | - |
| Fuel consumption | - |
| Pulling power | - |
| Claimed power | 33.5 hp or 25.0 kW |
| Real power | - |
| Engine @RPM | 1000@2070 (rpm) |
| PTO Clutch | dry disc |
| Rear PTO | live |
| Rear PTO RPM | 540 (rpm) |
| Front PTO | optional |
| Front PTO RPM | 1000 (rpm) |
| Mid PTO | - |
| Mid PTO RPM | - |
| Fuel consumption | - |
| Hitch system | - |
| Rear hitch | II/I |
| Rear hitch lift | 4878 lbs or 2212 kg |
| Front hitch | - |
| Front hitch lift | - |
Allis Chalmers 18-30
General Infos| Make | Allis Chalmers |
| Model | 18-30 |
| Country | United states |
| Production | From 1918 Until 1921 |
| Price | - |
| Tractor type | Standard tread tractor |
| Fuel | gasoline |
| Service repair manual | Allis Chalmers 18-30 Manual |
Dimensions, sizes and tires
| AG front tires | 36x6 steel |
| AG rear tires | 50x12 steel |
| Lawn front tires | - |
| Lawn rear tires | - |
| Indus front tires | - |
| Indus rear tires | - |
| Weight | 6150 lbs or 2789 kg |
| Length | 135 inches [342 cm] |
| Width | 66 inches [167 cm] |
| Height | 68 inches [172 cm] |
| Wheelbase | - |
| Ground clearance | - |
| Turning radius | - |
| Rear tread size | - |
| Front tread size | - |
| Turning radius | - |
Horsepower and engin specs
| Engine capacity | 460.7 ci or 7.6 L |
| Cylinders | 4 cylinders |
| Engine power | - |
| Engine RPM | 830 (rpm) |
| Torque | - | Torque RPM | - |
| Fuel type | gasoline |
| Fuel injection | Kingston L 1.5" carburetor |
| Fuel tank size | 25 gal or 94.6 L |
| Oil capacity | - |
| Oil change | - |
| Starter motor | - |
| Starter volts | - |
| Parts And Accessories | Allis Chalmers 18-30 Parts |
| Batteries number | - |
| Batteries voltage | - |
| Battries Amps | - |
| Cold Amps | - |
| Ground force | - |
| Charging system | - |
| Charging Volts | - |
| Charging Amps | - |
| Trans system | - |
| Trans type | unsynchronized gear |
| Trans gears | 2 forward and 1 reverse |
| Clutch system | hand-operated expanding shoe |
| Wheel drive | 4x2 2WD |
| Final drive | - |
| Steering | - |
| Braking system | - |
| Cabin type | Open operator station |
| Differentiel lock | - |
| System | - |
| Valves | - |
| Pump flow | - |
| SVC flow | - |
| Steering flow | - |
| Tank capacity | - |
| Hydraulic pressure | - |
| Max flow | - |
| Drawbar type | - |
| Claimed power | 18 hp or 13.4 kW |
| Drawbar horsepower | 20.55 hp or 15.3 kW |
| Fuel consumption | 3.5 gal/hour or 13.2 l/hour |
| Pulling power | 3,500 lbs or 1587 kg |
| Claimed power | - |
| Real power | - |
| Engine @RPM | - |
| PTO Clutch | - |
| Rear PTO | - |
| Rear PTO RPM | - |
| Front PTO | - |
| Front PTO RPM | - |
| Mid PTO | - |
| Mid PTO RPM | - |
| Fuel consumption | - |
| Hitch system | - |
| Rear hitch | - |
| Rear hitch lift | - |
| Front hitch | - |
| Front hitch lift | - |
Related tractor comparison
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Choose another tractor
Useful links and guides ....
- John Deere provided us with the latest version of its 840 service repair manual
- Find All mechanical and electrical parts and accessories of John Deere 840 farm-tractor here
- Get your Allis Chalmers 18-30 manual book version
- Cabine, electrical And mechanical parts for Allis Chalmers 18-30 farm-tractor here
