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Construction Machinery. Wheel-Mounted Loader John Deere 644A
Sizes
| Wheelbase | 2640 mm |
| Hinge axis maximum height | 3610 mm |
| Radius at maximum lifting and unloading | 889 mm |
| Length with bucket on ground level | 6300.2 mm |
| Height to cab upper part | 3099.8 mm |
| Clearance | 437 mm |
Shovel
| Breakout power | 184.7 kN |
| Unloading ground clearance at maximum lifting | 2819.4 mm |
| Shovel width | 2650 mm |
| Bucket capacity with top | 1.9 m3 |
| Brimmed bucket capacity | 1.6 m3 |
Operation
| Working weight | 11440 kg |
| Fuel Capacity | 189.3 l. |
| Hydraulic system fluid volume | 66.2 l. |
| Engine oil volume | 16.1 l. |
| Cooling system fluid volume | 34.1 l. |
| Transmission fluid volume | 36.9 l. |
| Front axle / differential fluid volume | 22.7 l. |
| Rear axle / differential fluid volume | 24.6 l. |
| Static tipping weight | 8439 kg |
| Turn radius | 4700 mm |
| Operating voltage | 12 V |
| Generator current strength | 55 amperes |
| Rear axle oscillating | 22 degrees |
| Tyre size | 16-24 / 20.5- 25 |
Motor
| Maximum torque | 467.8 Nm |
| Aspiration | turbocharging |
| Manufacturer | John Deere |
| Effective power | 133 kW |
| Full power | 143 kW |
| Power measured at | 2400 rev / min |
| Displacement | 6.6 l. |
| Torque measured at | 1600 rev / min |
Hydraulic system
| Type of pump | variable displacement piston pump |
| Overflow valve pressure | 15513.2 kPa |
| Pump bandwidth | 227 l/min |
Gear box
| Transmission type | powershift transmission |
| Forward gears number | 4 |
| Reverse gears number | 2 |
| Maximum forward speed | 37 km/h |
| Maximum reverse gear | 15.3 km/h |
Images
Sizes
| 8. Radius at maximum lifting and unloading | 889 mm |
| 1. Length with bucket on ground level | 6300.2 mm |
| 3. Height to cab upper part | 3099.8 mm |
| 4. Wheelbase | 2640 mm |
| 5. Clearance | 437 mm |
| 6. Hinge axis maximum height | 3610 mm |
Shovel
| 7. Unloading ground clearance at maximum lifting | 2819.4 mm |