John Deere 7720 Specs ( 2003-2006 )
Production
| Description | Row-Crop tractor / Built in Waterloo, Iowa, USA |
|---|---|
| Manufacturer | John Deere |
Engine
| Engine type | John Deere 6.8L 6-cyl diesel |
|---|---|
| Bore/Stroke | 4.19x5.00 inches (106 x 127 mm) |
| Compression | 17:1 |
| Coolant capacity | 31.1 qts (29.4 L) |
| Description | John Deere / turbocharged intercooled diesel / 6-cylinder / liquid-cooled |
| Displacement | 414 ci (6.8 L) |
| Firing order | 1-5-3-6-2-4 |
| Fuel system | high-pressure common rail |
| Idle RPM | 875-2200 |
| Maximum Power (gross) | 185.1 hp*With 50KPH transmission a transport boost up to 204HP was available. (138.0 kW) |
| Maximum Power (net) | 179.7 hp (134.0 kW) |
| Oil capacity | 27.5 qts (26.0 L) |
| Rated Power (gross) | 172.9 hp (128.9 kW) |
| Rated Power (net) | 167.6 hp (125.0 kW) |
| Rated RPM | 2100 |
| Starter volts | 12 |
| Torque | 607.8 lb-ft (824.2 Nm) |
| Torque RPM | 1400 |
| Drawbar (tested) | 129.08 hp (96.3 kW) |
| Engine (gross) | 172.9 hp (128.9 kW) |
| Engine (max) | 185.1 hp (138.0 kW) |
| Engine (net) | 167.6 hp (125.0 kW) |
| PTO (claimed) | 140 hp (104.4 kW) |
| PTO (tested) | 159.79 hp (119.2 kW) |
Transmission
| Clutch | hydraulic wet discs / hydraulic wet discs / hydraulic wet discs |
|---|---|
| Description | Four power shift gears (1-4) in five synchronized ranges (A-E) with left-hand power shuttle. / Four power shift gears (1-4) in five synchronized ranges (A-E) with left-hand power shuttle. AutoQuad allows for automatic load-based gear shifting. |
| Drive type | Hydro-mechanical IVT controlled via right-hand speed lever and left-hand reverser lever. Knob on the speed lever adjusts the set speeds for two ranges. Minimum speed of 50 meters per hour (164 feet per hour). The IVT was available on the 7720 only when equipped with four-wheel drive. |
| Gears | 20 forward and reverse / 20 forward and reverse / infinite forward and reverse |
| Transmission | PowrQuad Plus / AutoQuad Plus / AutoPowr IVT |
| Type | partial power shift / infinitely variable transmission |
| Description | infinitely variable transmission |
| Transmission type | 20-speed partial power shift / 20-speed |
| Description | infinitely variable transmission |
| Transmission type | 20-speed partial power shift / 20-speed |
Mechanical
| Cab | Cab standard. |
|---|---|
| Description | Power steering / Hydraulic wet disc brakes |
| Drive type | Four-wheel drive |
Capacity
| Front axle | 15.2 qts (14.4 L) |
|---|---|
| Front hubs | 2 qts (1.9 L) |
| Fuel | 103.5 gal (391.7 L) |
| HD Front hubs | 4 qts (3.8 L) |
| Hydraulic system | 28.5 gal (107.9 L) |
Hydraulics
| Capacity | 28.5 gal (107.9 L) |
|---|---|
| Pressure | 3046 psi (210.0 bar) |
| Pump flow | 32 gpm (121.1 lpm) |
| SCV flow | 30 gpm (113.6 lpm) |
| Type | closed center pressure-flow compensating (PFC) |
| Valves | 7 |
Hitch
| Front Hitch | optional |
|---|---|
| Rear lift | 10050 lbs (4558 kg) |
| Rear Type | 3/3N |
PTO
| Clutch | hydraulic wet discs |
|---|---|
| Engine RPM | 540@1950 |
| Front PTO | independent OptOptional |
| Front PTO Type | 540/1000 |
| Rear PTO | independent |
| Rear PTO Type | 540/1000 (1.375) |
Electrical
| Batteries | 2 |
|---|---|
| Battery CCA | 925 |
| Battery volts | 12 |
| Charging amps | 150 |
| Charging system | alternator |
| Ground | negative |
Dimensions & Tires
| 2WD Clearance (drawbar) | 16.7 inches (42 cm) |
|---|---|
| 2WD Clearance (front axle) | 25.6 inches (65 cm) |
| 4WD Clearance (drawbar) | 16.3 inches (41 cm) |
| 4WD Clearance (front axle) | 22.3 inches (56 cm) |
| Clearance (drawbar) | 16.3 inches (41 cm) |
| Clearance (front axle) | 22.3 inches (56 cm) |
| Height | 125.4 inches (318 cm) |
| Height (cab) | 125.4 inches (318 cm) |
| Length | 212.2 inches (538 cm) |
| Rear axle | 3.937 by 96 inches (99 by 2438 mm) |
| Wheelbase | 112.6 inches (286 cm) |
| Width | 96 inches (243 cm) |
| Front tire | 11.00-16 |
| Rear tire | 480/80R42 |
| Weight | 17309 to 17750 pounds |
| Wheelbase | 112.6 inches (286 cm) |
| Ag front | 11.00-16 |
| Ag rear | 480/80R42 |
| Standard tires (ag) | Front: 11.00-16. Rear: 18.4R42 (2WD) |
7720 Serial Number Location
| Description | On tractor frame, front right-hand side. |
|---|
John Deere 7720 Weight
| 2WD Shipping | 15,501 lbs (7031 kg) |
|---|---|
| 4WD IVT Shipping | 17,033 lbs (7726 kg) |
| 4WD PowrQud Operating | 16,475 lbs (7473 kg) |
| 4WD Shipping | 16,502 lbs (7485 kg) |
| Ballasted | 20,220 lbs (9171 kg) |
| Gear Shipping | 17309 lbs (7851 kg) |
| IVT Shipping | 17750 lbs (8051 kg) |
| Max capacity | 28886 lbs (13102 kg) |
| Max front axle | 12128 lbs (5501 kg) |
| Max rear axle | 22050 lbs (10001 kg) |
OCED Tractor Test 1833
| Description | Diesel PowrQuad-Plus 4WDMarch 30 - April 21, 2004Link: OCED Tractor Test 1833 file / PTO performance / Drawbar performance |
|---|---|
| Fuel use | 8.5 gal/hour (32.2 l/hour) / 8.1 gal/hour (30.7 l/hour) / 8.3 gal/hour (31.4 l/hour) / 8.1 gal/hour (30.7 l/hour) |
| Max power | 159.79 hp (119.2 kW) / 129.08 hp (96.3 kW) |
| Max pull | 20604 lbs (9345 kg) |
| Power at rated engine speed | 141.89 hp (105.8 kW) |
| Power at rated PTO speed | 150.58 hp (112.3 kW) |
References
| Description | 7020 Series Tractors published in 2004, by John Deere |
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Speeds
| Description | With Group 46 rear tires. Reverse speeds are about 4% faster than corresponding forward speed. / With Group 46 rear tires. Reverse speeds are about 4% faster than corresponding forward speed. |
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