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Construction Machinery. Wheel-Mounted Loader John Deere 644B
Sizes
| Length with bucket on ground level | 6042 mm |
| Height to cab upper part | 3240 mm |
| Clearance | 505 mm |
| Wheelbase | 2640 mm |
| Hinge axis maximum height | 3657.6 mm |
| Radius at maximum lifting and unloading | 879 mm |
Shovel
| Bucket capacity with top | 1.9 m3 |
| Brimmed bucket capacity | 1.6 m3 |
| Breakout power | 108.1 kN |
| Unloading ground clearance at maximum lifting | 2843.8 mm |
| Shovel width | 2660 mm |
Operation
| Working weight | 12746 kg |
| Fuel Capacity | 211.9 l. |
| Hydraulic system fluid volume | 66.2 l. |
| Engine oil volume | 20.8 l. |
| Cooling system fluid volume | 46.4 l. |
| Transmission fluid volume | 36.9 l. |
| Front axle / differential fluid volume | 22.7 l. |
| Rear axle / differential fluid volume | 23.7 l. |
| Static tipping weight | 10390 kg |
| Turn radius | 4700 mm |
| Operating voltage | 12 V |
| Generator current strength | 42 amperes |
| Rear axle oscillating | 22 degrees |
| Tyre size | 14.5-25 / 20.5-25 |
Motor
| Full power | 119.3 kW |
| Power measured at | 2200 rev / min |
| Displacement | 8.7 l. |
| Torque measured at | 1500 rev / min |
| Cylinders number | 6 |
| Maximum torque | 586 Nm |
| Aspiration | turbocharging |
| Manufacturer | John Deere |
| Effective power | 108.1 kW |
Hydraulic system
| Type of pump | gear type pump |
| Overflow valve pressure | 158.2 kPa |
| Pump bandwidth | 220 l/min |
Gear box
| Transmission type | planetary powershift transmission |
| Forward gears number | 4 |
| Reverse gears number | 2 |
| Maximum forward speed | 41.5 km/h |
| Maximum reverse gear | 16.4 km/h |
Images
Sizes
| 3. Height to cab upper part | 3240 mm |
| 4. Wheelbase | 2640 mm |
| 5. Clearance | 505 mm |
| 6. Hinge axis maximum height | 3657.6 mm |
| 8. Radius at maximum lifting and unloading | 879 mm |
| 1. Length with bucket on ground level | 6042 mm |
Shovel
| 7. Unloading ground clearance at maximum lifting | 2843.8 mm |