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- John Deere 770A vs. John Deere 770D
John Deere 770A vs. John Deere 770D
8 reasons to buy John Deere 770A:
Steerage
| Turn radius | 6.7 m and 7 m | 4 % less or 0.3 m |
Operation
| Hydraulic system fluid volume | 117 l. and 53 l. | 55 % more or 64 l. |
| Front axle standard operating weight | 3877.3 kg and 3860 kg | 0 % more or 17.3 kg |
Motor
| Torque measured at | 1300 rev / min and 1000 rev / min | 23 % more or 300 rev |
| Power measured at | 2200 rev / min and 2000 rev / min | 9 % more or 200 rev |
Hydraulic system
| Pump flow rate | 136.3 l/min and 207 l/min | 34 % less or 70.7 l/min |
Circle
| Blade tilt front angle | 44 degrees and 42 degrees | 5 % more or 2 degrees |
| Blade tilt rear angle | 10 degrees and 5 degrees | 50 % more or 5 degrees |
20 reasons to buy John Deere 770D:
Sizes
| Front part clearance | 638 mm and 572 mm | 10 % more or 66 mm |
Operation
| Rear axle maximum operating weight | 14587 kg and 11230 kg | 23 % more or 3357 kg |
| Fuel Capacity | 401.2 l. and 265 l. | 34 % more or 136.2 l. |
| Cooling system fluid volume | 49.2 l. and 26.5 l. | 46 % more or 22.7 l. |
| Circular gearbox fluid volume | 5.7 l. and 3.8 l. | 33 % more or 1.9 l. |
| Each tandem case fluid volume | 75.7 l. and 18.9 l. | 75 % more or 56.8 l. |
| Generator current strength | 100 amperes and 42 amperes | 58 % more or 58 amperes |
| Rear axle standard operating weight | 10959 kg and 9848.4 kg | 10 % more or 1110.6 kg |
| Front axle maximum operating weight | 7185 kg and 4123.6 kg | 43 % more or 3061.4 kg |
Motor
| Effective speeds output 7-8 | 160.3 kW and 111.9 kW | 30 % more or 48.4 kW |
| Maximum power | 160.3 kW and 111.9 kW | 30 % more or 48.4 kW |
| Effective drives torque 7-8 | 1223 Nm and 630.5 Nm | 48 % more or 592.5 Nm |
| Displacement | 8.1 l. and 7.6 l. | 6 % more or 0.5 l. |
Gear box
| Reverse gears number | 8 and 4 | 50 % more or 4 |
| Maximum forward speed | 41.6 km/h and 40.4 km/h | 3 % more or 1.2 km/h |
| Maximum reverse gear | 41.6 km/h and 13.8 km/h | 67 % more or 27.8 km/h |
Front Axle
| Clearance | 638 mm and 572 mm | 10 % more or 66 mm |
Circle
| Right maximum radius outside tyres | 2080 mm and 2250 mm | 8 % less or 170 mm |
| Maximum lifting above ground level | 470 mm and 432 mm | 8 % more or 38 mm |
| Maximum radius outside left tyres | 2100 mm and 2280 mm | 8 % less or 180 mm |
Neutral reasons:
Steerage
| Left and right hinge connection | 25 degrees and 22 degrees |
Sizes
| Height to cab upper part | 3200 mm and 3180 mm |
| Dimensional length | 8470 mm and 8804 mm |
| Between tyres width | 2440 mm and 2510 mm |
| Wheelbase | 5970 mm and 6120 mm |
| Blade base | 2720 mm and 2568 mm |
| Dual axis wheelbase | 1540 mm and 1540 mm |
Operation
| Total maximum operating weight | 15353.6 kg and 21772 kg |
| Tyre size | 14.00-25 and 14.00R24 Radial PR |
| Operating voltage | 24 V and 24 V |
| Overall standard operating weight | 13725.7 kg and 14819 kg |
Motor
| Cylinders number | 6 and 6 |
| Manufacturer | John Deere and John Deere |
| Model | 6-466A and 6081H |
| Aspiration | Turbocharging with intercooler and Turbocharged engine with subsequent cooling of charging air by oncoming air flow |
Hydraulic system
| Type of pump | Constant pressure system with locking in the middle position, with the piston pump of variable displacement volume and variable displacement piston pump |
Gear box
| Transmission type | powershift and Powershift transmission with direct drive |
| Forward gears number | 8 and 8 |
Front Axle
| Wheel tilt | 20 degrees and 20 degrees |
| General fluctuations | 30 degrees and 32 degrees |
Dump
| Mouldboard width | 3657.6 mm and 3660 mm |
| Mouldboard height | 609.6 mm and 610 mm |
| Mouldboard thickness | 22.4 mm and 22 mm |
| Left lateral displacement | 683 mm and 680 mm |
| Lateral right shift | 683 mm and 680 mm |
Circle
| Diameter | 1500 mm and 1520 mm |
| Rotating | 360 degrees and 360 degrees |
| Left shift | 851 mm and 787 mm |
| Right shift | 813 mm and 724 mm |
Images
Sizes
| 1. Dimensional length | 8470 mm | 1. Dimensional length | 8804 mm |
| 2. Between tyres width | 2440 mm | 2. Between tyres width | 2510 mm |
| 3. Height to cab upper part | 3200 mm | 3. Height to cab upper part | 3180 mm |
| 4. Wheelbase | 5970 mm | 4. Wheelbase | 6120 mm |
| 6. Front part clearance | 572 mm | 6. Front part clearance | 638 mm |
| 7. Dual axis wheelbase | 1540 mm | 7. Dual axis wheelbase | 1540 mm |
| 8. Blade base | 2720 mm | 8. Blade base | 2568 mm |