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Construction Machinery. Wheel-Mounted Loader John Deere 644J High-Lift
Sizes
| Wheelbase | 3200 mm |
| Hinge axis maximum height | 4570 mm |
| Radius at maximum lifting and unloading | 1170 mm |
| Length with bucket on ground level | 8530 mm |
| Height to cab upper part | 3400 mm |
| Clearance | 460 mm |
Shovel
| Breakout power | 136 kN |
| Unloading ground clearance at maximum lifting | 3380 mm |
| Shovel width | 2971.8 mm |
| Bucket capacity with top | 3 m3 |
Operation
| Static tipping weight | 12560 kg |
| Turn radius | 5.5 mm |
| Operating voltage | 24 V |
| Generator current strength | 80 amperes |
| Rear axle oscillating | 24 degrees |
| Tyre size | 23.5 R25 |
| Working weight | 18425 kg |
| Fuel Capacity | 352 l. |
| Hydraulic system fluid volume | 117 l. |
| Engine oil volume | 24.5 l. |
| Cooling system fluid volume | 29.5 l. |
| Transmission fluid volume | 26.5 l. |
| Front axle / differential fluid volume | 22 l. |
| Rear axle / differential fluid volume | 22 l. |
Motor
| Manufacturer | John Deere |
| Model | 6068H |
| Effective power | 138 kW |
| Power measured at | 2200 rev / min |
| Displacement | 6.8 l. |
| Torque measured at | 1400 rev / min |
| Cylinders number | 6 |
| Maximum torque | 1016 Nm |
| Torque increase | 55 % |
| Aspiration | Turbocharger with charge air cooler by oncoming air flow |
Hydraulic system
| Type of pump | variable displacement axial piston pump |
| Overflow valve pressure | 24800 kPa |
| Pump bandwidth | 257 l/min |
| Lifting time | 5.9 sec |
| Unloading time | 1.9 sec |
| Lowering time | 2.8 sec |
Gear box
| Transmission type | automatic transmission system with power gear shifting |
| Forward gears number | 4 |
| Reverse gears number | 3 |
| Maximum forward speed | 35.4 km/h |
| Maximum reverse gear | 25 km/h |
Images
Sizes
| 1. Length with bucket on ground level | 8530 mm |
| 3. Height to cab upper part | 3400 mm |
| 4. Wheelbase | 3200 mm |
| 5. Clearance | 460 mm |
| 6. Hinge axis maximum height | 4570 mm |
| 8. Radius at maximum lifting and unloading | 1170 mm |
Shovel
| 7. Unloading ground clearance at maximum lifting | 3380 mm |