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Construction Machinery. Wheel-Mounted Loader John Deere 644H High-Lift
Sizes
| Height to cab upper part | 3400 mm |
| Clearance | 461 mm |
| Wheelbase | 3200 mm |
| Hinge axis maximum height | 4569 mm |
| Length with bucket on ground level | 8525 mm |
| Radius at maximum lifting and unloading | 1175 mm |
| Between tyres width | 2697 mm |
Shovel
| Unloading ground clearance at maximum lifting | 3375 mm |
| Shovel width | 2900 mm |
| Bucket capacity with top | 3.3 m3 |
| Brimmed bucket capacity | 2.8 m3 |
| Breakout power | 136 kN |
Operation
| Working weight | 17690 kg |
| Fuel Capacity | 341 l. |
| Hydraulic system fluid volume | 117 l. |
| Engine oil volume | 25 l. |
| Cooling system fluid volume | 29 l. |
| Transmission fluid volume | 26 l. |
| Front axle / differential fluid volume | 27 l. |
| Rear axle / differential fluid volume | 27 l. |
| Static tipping weight | 11248 kg |
| Turn radius | 5500 mm |
| Operating voltage | 24 V |
| Generator current strength | 55 amperes |
| Rear axle oscillating | 26 degrees |
| Tyre size | 20.5-25 |
Motor
| Power measured at | 2200 rev / min |
| Displacement | 8.1 l. |
| Torque measured at | 1300 rev / min |
| Cylinders number | 6 |
| Maximum torque | 1010 Nm |
| Aspiration | Turbocharging with subsequent air cooling (by a cooling radiator) |
| Manufacturer | John Deere |
| Model | 6081H |
| Effective power | 134.2 kW |
| Full power | 153 kW |
Hydraulic system
| Type of pump | piston pump |
| Overflow valve pressure | 24821.1 kPa |
| Pump bandwidth | 257.4 l/min |
| Lifting time | 6.2 sec |
| Unloading time | 1.4 sec |
| Lowering time | 3 sec |
Gear box
| Transmission type | powershift |
| Forward gears number | 4 |
| Reverse gears number | 3 |
| Maximum forward speed | 39 km/h |
| Maximum reverse gear | 26.7 km/h |
Images
Sizes
| 4. Wheelbase | 3200 mm |
| 5. Clearance | 461 mm |
| 6. Hinge axis maximum height | 4569 mm |
| 8. Radius at maximum lifting and unloading | 1175 mm |
| 1. Length with bucket on ground level | 8525 mm |
| 2. Between tyres width | 2697 mm |
| 3. Height to cab upper part | 3400 mm |
Shovel
| 7. Unloading ground clearance at maximum lifting | 3375 mm |