| Manufacturer | John Deere |
| Price | 68,000(USD) |
| Model | 7700 |
| Equipment Type | Row-Crop Tractors |
| Factory | Waterloo, Iowa, USA |
OCED TRACTOR TEST 1666 2
| Description | Diesel PowrQuad 4WD May 26 - June 21, 1993 Link: OCED Tractor Test 1666 file PTO performance Drawbar performance |
| Max power | 116.61hp / 87.0kW |
| Fuel use | 8.0gal/hour / 30.3l/hour |
| Power at rated engine speed | 126.08hp / 94.0kW |
| Max pull | 17,406lbs / 7895kg |
OCED TRACTOR TEST 1667 2
| Description | Diesel Powershift 4WD April 22 - May 21, 1993 Link: OCED Tractor Test 1667 file PTO performance Drawbar performance Gear 11 used for power test Gear 5 used for pull test |
| Max power | 111.56hp / 83.2kW |
| Fuel use | 7.8gal/hour / 29.5l/hour |
| Power at rated engine speed | 126.08hp / 94.0kW |
| Max pull | 14,908lbs / 6762kg |
JOHN DEERE 7700 POWER
| Engine (net) | 150hp / 111.9kW |
| PTO (claimed) | 126hp / 94.0kW |
| Drawbar (tested) | 116.61hp / 87.0kW |
| PTO (tested) | 130.80hp / 97.5kW |
ENGINE DETAIL
The John Deere 7700 features a robust 6-cylinder turbocharged diesel engine with a displacement of 7.6L, rated at 150hp at 2100 RPM, providing substantial power for heavy agricultural tasks. Its efficient dual dry element air cleaner aids in improving combustion, while the compression ratio of 15.8:1 enhances fuel efficiency, although it may necessitate higher-grade fuel. The 26.5-quart coolant capacity ensures effective thermal management in high-load scenarios, which is essential for extended operational periods.
| Description | John Deere turbocharged diesel 6-cylinder liquid-cooled |
| Displacement | 466ci / 7.6L |
| Bore/Stroke | 4.5625x4.75inches / 116x 121mm |
| Rated Power (ECE R24) | 150hp / 111.9kW |
| Air cleaner | dual dry element |
| Compression | 15.8:1 |
| Rated RPM | 2100 |
| Firing order | 1-5-3-6-2-4 |
| Starter volts | 12 |
| Coolant capacity | 26.5qts / 25.1L |
JOHN DEERE 7700 ENGINE
The John Deere 7700 features a robust 7.6L 6-cylinder diesel engine known for its high torque output and fuel efficiency, making it suitable for heavy-duty applications. Advantages include superior durability and performance in demanding conditions; however, challenges may arise in maintenance due to the complexity of newer engine systems. This tractor excels in agricultural tasks such as plowing and tilling, optimizing productivity on large farms.
| Description | John Deere 7.6L 6-cyl diesel |
TRANSMISSIONS OVERVIEW
The John Deere 7700 tractor's transmission options—16-speed partial power shift and 19-speed full power shift—offer enhanced versatility for varying field conditions. The full power shift provides smoother gear transitions, improving operational efficiency, particularly in heavy-duty applications. However, the increased complexity of the 19-speed system may lead to higher maintenance requirements compared to the simpler 16-speed option.
| Description | 16-speed partial power shift 19-speed full power shift |
TRANSMISSION 1
The John Deere 7700 features the PowrQuad transmission, providing 16 forward and 12 reverse gears, which enhances flexibility and control across varied terrains. Its partial power shift allows for smoother transitions between ranges, minimizing power loss and improving efficiency during operation. One challenge may be the complexity of operation for inexperienced users, but the transmission design offers a notable advantage in achieving optimal power management for extensive fieldwork scenarios.
| Transmission | John Deere PowrQuad |
| Type | partial power shift |
| Gears | 16 forward and 12 reverse |
| Clutch | wet disc |
| Description | The PowrQuad was the standard transmission on the Deere 7800. It consists of four speeds (1-4) in four ranges (A-D) |
TRANSMISSION 2
The John Deere 7700 features a full PowerShift transmission with 19 forward and 7 reverse gears, enabling smooth gear transitions without the need for a clutch pedal, enhancing productivity in varying terrain and workload scenarios. The wet disc clutch design provides enhanced durability and reduced wear, ideal for extensive fieldwork. However, operators must be proficient in using the PowerShift system to maximize its advantages in both power management and efficiency.
| Transmission | John Deere PowerShift |
| Type | full power shift |
| Gears | 19 forward and 7 reverse |
| Clutch | wet disc |
MECHANICAL
The John Deere 7700 features a versatile 4x2 and 4x4 configuration, enhancing its adaptability for various terrains, although it may underperform on steep inclines due to its 2WD capabilities. The inboard planetary final drives provide better durability and traction, while the electro-hydraulic rear differential lock improves maneuverability in challenging conditions. The 16-speed and 19-speed transmission options allow for optimal torque control and versatility in speed adjustments, making it suitable for both heavy-duty agricultural tasks and more precise operations.
| Chassis | 4x2 2WD/4x4 MFWD 4WD |
| Final drives | inboard planetary |
| Differential lock | electro-hydraulic rear |
| Steering | power |
| Brakes | differential hydraulic wet disc |
| Cab | ComfortGard cab standard with air-conditioning |
| Transmissions | 16-speed partial power shift 19-speed full power shift |
CAPACITY
| Fuel | 91gal / 344.4L |
| Hydraulic system | 22.9gal / 86.7L |
HYDRAULICS
| Type | closed center |
| Capacity | 22.9gal / 86.7L |
| Pressure | 2900psi / 200.0bar |
| Valves | 2 to 3 |
| SCV flow | 25.4gpm / 96.1lpm |
TRACTOR HITCH
| Rear Type | IIIN/II |
| Control | position and draft control |
| Rear lift | 8925lbs / 4048kg 10050lbs / 4558kg with four-wheel drive |
POWER TAKE-OFF (PTO)
| Rear PTO | independent |
| Rear RPM | 540/1000 |
JOHN DEERE 7700 TIRES
The John Deere 7700 tractor is equipped with Ag front tires sized 10.00-16 and Ag rear tires sized 18.4-38, offering a balance between traction and stability for field operations. The larger rear tires provide better weight distribution and reduced soil compaction, which is advantageous for crop health. However, the front tire size may limit maneuverability in tight spaces, so consider operational scenarios when selecting tasks.
| Ag front | 10.00-16 |
| Ag rear | 18.4-38 |
DIMENSIONS
| 2WD Wheelbase | 114.4inches / 290cm |
| 4WD Wheelbase | 110.2inches / 279cm |
| Length | 187.2inches / 475cm |
| Height (cab) | 118.4inches / 300cm |
| Shiping weight | 13,870lbs / 6291kg |
| 4WD Operating weight | 15,505lbs / 7033kg |
| Rear axle | Rack-and-pinion: 3.62 by 118inches / 91by 2997mm |
| Rear tread | 60 to 108.3inches / 152to 275cm |
DIMENSIONS & TIRES
The John Deere 7700 tractor, with a weight range of 13,870 to 15,505 pounds, provides substantial stability and traction, particularly beneficial for heavy-duty field applications. Its 2WD and 4WD configurations (114.4 inches and 110.2 inches wheelbase, respectively) allow for versatility in both flat and inclined terrains, although 4WD may offer enhanced maneuverability in loose or uneven soil conditions. The front tire size of 10.00-16 combined with rear tires of 18.4-38 ensures optimal load distribution, but tire selection may impact soil compaction and crop damage during operations.
| 2WD Wheelbase | 114.4inches / 290cm |
| 4WD Wheelbase | 110.2inches / 279cm |
| Weight | 13870 to 15505 pounds |
| Front tire | 10.00-16 |
| Rear tire | 18.4-38 |
JOHN DEERE 720 LOADER
| Height (to pin) | 130inches / 330cm |
| Rollback angle | 11° |
| Breakout force (lift) | 6104lbs / 2768kg |
| Lift to full height (at pin) | 3517lbs / 1595kg |
JOHN DEERE 725 LOADER
| Height (to pin) | 162inches / 411cm |
| Rollback angle | 12° |
| Breakout force (lift) | 6209lbs / 2816kg |
| Lift to full height (at pin) | 4677lbs / 2121kg |
JOHN DEERE 740 LOADER
| Height (to pin) | 164inches / 416cm |
| Rollback angle | 19° |
| Breakout force (lift) | 6021lbs / 2731kg |
| Lift to full height (at pin) | 3965lbs / 1798kg |
7700 SERIAL NUMBERS
| Location | Serial number tag on the right side of the 7700 tractor frame, above the front axle |
| 1993 | 1001 |
| 1994 | 4601 |
| 1995 | 7295 |
| 1996 | 10001 |
ELECTRICAL
| Ground | negative |
| Charging system | alternator |
| Charging amps | 140 |
| Battery volts | 12 |