Forestry and Logging Equipment. Skidding Tractor (Skidder) John Deere 648G
Sizes
| Dimensional length | 7230 mm |
| Roller diameter | 203.2 mm |
| Cable width | 15.8 mm |
| Drum capacity at cable width | 77.4 m |
| Maximum traction force on a rope with empty drum | 186.2 kN |
| Maximum line speed | 44.5 m/min |
| Overall width | 3110 mm |
| Height to cab upper part | 3030 mm |
| Maximum blade height | 1310 mm |
| Wheelbase | 3430 mm |
| Clearance | 514 mm |
| Dimensional length | 7230 mm |
| Grapple height from ground level | 908 mm |
| Grapple radius on ground level | 2243 mm |
| Maximum boom height | 3195 mm |
| Tong opening at tips | 2921 mm |
| Grapple load capacity - tongs tip to tip | 0.97 m2 |
| Dimensional length | 7345 mm |
| Grapple height from ground level | 1376 mm |
| Grapple radius on ground level | 1536 mm |
| Maximum boom height | 3680 mm |
| Tong opening at tips | 2921 mm |
| Grapple load capacity - tongs tip to tip | 0.97 m2 |
Operation
| Operating voltage | 12 V |
| Generator current strength | 95 amperes |
| Axle oscillating | 30 degrees |
| Steering angle | 90 degrees |
| Tyre size | 28L-26 |
| Working weight | 12083.2 kg |
| Fuel Capacity | 265 l. |
| Cooling system fluid volume | 28.4 l. |
| Engine oil volume | 18.9 l. |
| Front differential fluid volume | 17 l. |
| Rear differential fluid volume | 28.4 l. |
| Transmission fluid volume | 29.3 l. |
| Hydraulic system fluid volume | 41.6 l. |
Motor
| Manufacturer | John Deere |
| Model | 6068T |
| Full power | 117.1 kW |
| Effective power | 112.6 kW |
| Power measured at | 2200 rev / min |
| Peak torque | 611.5 Nm |
| Torque measured at | 1350 rev / min |
| Displacement | 6.8 l. |
| Cylinders number | 6 |
| Aspiration | turbocharging |
Hydraulic system
| Type of pump | Piston |
| Pump flow rate | 143.8 l/min |
| Overflow valve pressure | 20684.3 kPa |
Gear box
| Transmission type | planetary gear |
| Forward gears number | 8 |
| Reverse gears number | 4 |
| Maximum forward speed | 25.3 km/h |
| Maximum reverse gear | 9 km/h |
Images
Sizes
| 1. Dimensional length | 7230 mm |
| 2. Overall width | 3110 mm |
| 3. Height to cab upper part | 3030 mm |
| 4. Wheelbase | 3430 mm |
| 5. Clearance | 514 mm |
| 6. Maximum boom height | 3680 mm |
| 7. Grapple height from ground level | 1376 mm |
| 8. Grapple radius on ground level | 1536 mm |
| 9. Tong opening at tips | 2921 mm |