| Manufacturer | John Deere |
| Price | 18,700(USD) |
| Model | 1250 |
| Equipment Type | Compact Utility Tractors |
| Factory | Japan |
NEBRASKA TRACTOR TEST 1437 2
| Description | Diesel 9-speed 4WD May 13 - June 1, 1982 Link: Nebraska Tractor Test 1437 file PTO performance Drawbar performance |
| Power at rated engine speed | 40.70hp / 30.3kW |
| Fuel use | 2.4gal/hour / 9.1l/hour |
| Power at rated PTO speed | 40.98hp / 30.6kW |
| Max power | 33.44hp / 24.9kW |
| Max pull | 5,164lbs / 2342kg |
JOHN DEERE 1250 POWER
| Engine (gross) | 44hp / 32.8kW |
| PTO (claimed) | 40hp / 29.8kW |
| Drawbar (tested) | 33.44hp / 24.9kW |
| PTO (tested) | 40.70hp / 30.3kW |
ENGINE DETAIL
The John Deere 1250 features a robust 2.3L Yanmar diesel engine, capable of delivering 44hp at 2500 RPM, making it suitable for various agricultural tasks. Its direct injection system and high compression ratio of 18:1 facilitate efficient fuel combustion, enhancing power delivery while maintaining fuel efficiency. However, operators should be mindful of its oil and coolant capacities—11.2 quarts and 8.4 quarts respectively—which necessitate regular maintenance checks to ensure optimal performance and prevent overheating.
| Description | Yanmar diesel 3-cylinder liquid-cooled |
| Displacement | 142.7ci / 2.3L |
| Bore/Stroke | 3.74x4.33inches / 95x 110mm |
| Power (gross) | 44hp / 32.8kW |
| Fuel system | direct injection |
| Compression | 18:1 |
| Rated RPM | 2500 |
| Starter volts | 12 |
| Oil capacity | 11.2qts / 10.6L |
| Coolant capacity | 8.4qts / 7.9L |
JOHN DEERE 1250 ENGINE
The John Deere 1250 tractor is powered by a Yanmar 2.3L 3-cylinder diesel engine, providing robust power efficiency for agricultural tasks. With a 17.2-gallon fuel tank, it offers extended run times, making it suitable for longer fieldwork without frequent refueling. However, the limited horsepower from a smaller engine may pose challenges for heavy-duty applications requiring more substantial torque and load capacity.
| Description | Yanmar 2.3L 3-cyl diesel |
| Fuel tank | 17.2gal / 65.1L |
TRANSMISSION
The John Deere 1250 features a sliding gear transmission with a total of 9 forward and 3 reverse speeds, segmented into three gear ranges (I, II, III), which provides versatility for various field conditions. This transmission design allows for smoother gear transitions in varied work environments, optimizing efficiency during tasks such as plowing or towing. However, the limited range setup may challenge operators when navigating steep inclines or complex terrains, necessitating skillful gear selection for optimal performance.
| Type | sliding gear |
| Gears | 9 forward and 3 reverse |
| Description | Three gears (1-3) plus reverse (R) in three ranges (I, II, III) |
MECHANICAL
The John Deere 1250 features a robust 4x4 MFWD option, providing superior traction for varied terrain, while its mechanical differential lock enhances traction during heavy-duty tasks. The inboard planetary final drives contribute to effective weight distribution, although they may require more maintenance compared to outboard systems. Its 9-speed sliding gear transmission offers versatility in speed selection, making it ideal for diverse applications, but operators should note the potential learning curve for optimal gear shifting proficiency.
| Chassis | 4x2 2WD/4x4 MFWD 4WD |
| Final drives | inboard planetary |
| Differential lock | mechanical |
| Steering | power assist |
| Brakes | differential hydraulic wet disc |
| Cab | Two-post ROPS. Canopy optional |
| Transmission | 9-speed sliding gear |
HYDRAULICS
| Type | open center |
| Valves | 0 to 2 |
| Pump flow | 11.2gpm / 42.4lpm |
| Total flow | 15.9gpm / 60.2lpm |
| Steering flow | 4.7gpm / 17.8lpm |
TRACTOR HITCH
| Rear Type | II/I |
| Control | center-link draft sensing with position and control |
| Rear lift (at 24 | 2240lbs / 1016kg |
POWER TAKE-OFF (PTO)
| Rear PTO | continuous |
| Rear RPM | 540 |
JOHN DEERE 1250 TIRES
The John Deere 1250 tractor offers versatile configurations with 2WD and 4WD options, allowing for optimization based on application needs; the 2WD can be beneficial for lighter-duty tasks on flatter terrain, while the 4WD enhances traction and stability for more challenging conditions. The specified tire sizes significantly affect performance; wider rear tires (14.9-28) on the 4WD variant increase load-bearing capacity and reduce soil compaction, making it preferable for agricultural operations. Conversely, the lawn/turf tire sizes indicate suitability for landscaping tasks, offering reduced turf damage and better maneuverability in residential settings.
| 2WD Standard tires (ag) | Front: 6.50-16. Rear: 13.6-28 |
| 4WD Standard tires (ag) | Front: 9.5-24. Rear: 14.9-28 |
| Lawn/turf front | 27x9.50-15 |
| Lawn/turf rear | 21.5L-16.1 |
DIMENSIONS
| 4WD Wheelbase | 78inches / 198cm |
| Length | 134.3inches / 341cm |
| Width | 65.2inches / 165cm |
| Height (hood) | 56.1inches / 142cm |
| Clearance (front axle) | 17.5inches / 44cm |
| Front tread | 55 to 74.8inches / 139to 189cm |
| Rear tread | 51 to 79inches / 129to 200cm |
JOHN DEERE 1250 WEIGHT
| 2WD Shipping | 4125lbs / 1871kg |
| 4WD Shipping | 4875lbs / 2211kg |
| 4WD Operating | 5090lbs / 2308kg |
| Ballasted | 5180lbs / 2349kg |
DIMENSIONS & TIRES
The John Deere 1250's compact 78-inch wheelbase enhances maneuverability, making it suitable for tight spaces and small plots. Weighing between 4125 to 5090 pounds provides stability for various implements but may affect ground pressure and traction, especially in muddy conditions. The 4WD configuration complements the 2WD rear tires, offering improved traction on uneven terrain but may lead to higher fuel consumption during operation.
| 4WD Wheelbase | 78inches / 198cm |
| Weight | 4125 to 5090 pounds |
| Front tire | 6.50-16 |
| 2WD Rear tire | 13.6-28 |
JOHN DEERE 100 LOADER
| Loader weight | 975lbs / 442kg |
| Height (to pin) | 109inches / 276cm |
| Clearance, dumped bucket | 87inches / 220cm |
| Dump reach | 38inches / 96cm |
| Dump angle | 48° |
| Clearance, level bucket | 104inches / 264cm |
| Rollback angle | 16° |
| Breakout force (lift) | 2505lbs / 1136kg |
| Lift to full height (at pin) | 1760lbs / 798kg |
| Bucket width | 61inches / 154cm 73inches / 185cm |
1250 SERIAL NUMBERS
| Location | Serial number plate below the PTO on rear of transfer case |
| 1982 | 1000 |
| 1983 | 1256 |
| 1984 | 3001 |
| 1985 | 4001 |
| 1986 | 5001 |
| 1987 | 5501 |
| 1988 | 5785 |
ELECTRICAL
| Ground | negative |
| Charging system | alternator |
| Charging amps | 25 |
| Battery volts | 12 |