John Deere 644B
Browse All John Deere or Wheel Loader Models
Contents:
Bucket
| Dump Clearance At Max Raise | 9.33 ft in (2843.79 mm) |
| Breakout Force | 24120 lb (108.11 kN) |
| Bucket Capacity - Heaped | 2.5 yd3 (1.91 m3) |
| Bucket Capacity - Struck | 2.05 yd3 (1.57 m3) |
| Bucket Width | 8.73 ft in (2660 mm) |
Dimensions
| Ground Clearance | 1.66 ft in (505 mm) |
| Length With Bucket On Ground | 21.1 ft in (6042 mm) |
| Height To Top Of Cab | 10.63 ft in (3240.03 mm) |
| Wheelbase | 8.67 ft in (2640 mm) |
| Hinge Pin - Max Height | 12 ft in (3657.6 mm) |
| Reach At Max Lift And Dump | 2.89 ft in (879 mm) |
Engine
| Number Of Cylinders | 6 |
| Engine Make | 2240 |
| Net Power | 145 hp (108.1 kw) |
| Gross Power | 160 hp (119.3 kw) |
| Power Measured @ | 2200 rpm |
| Max Torque | 432 lb ft (586 Nm) |
| Displacement | 531 cu in (8.8 L) |
| Torque Measured @ | 1500 rpm |
| Aspiration | Turbocharged |
Operational
| Operating Weight | 28100 lb (12746 kg) |
| Fuel Capacity | 56 gal (211.9 L) |
| Hydraulic System Fluid Capacity | 17.5 gal (66.3 L) |
| Engine Oil Fluid Capacity | 5.5 gal (20.9 L) |
| Cooling System Fluid Capacity | 12.3 gal (46.4 L) |
| Transmission Fluid Capacity | 9.8 gal (37 L) |
| Front Axle/Diff Fluid Capacity | 6 gal (22.7 L) |
| Rear Axle/Diff Fluid Capacity | 6.3 gal (23.7 L) |
| Static Tipping Weight | 22905 lb (10390 kg) |
| Turning Radius | 15.5 ft in (4700.1 mm) |
| Operating Voltage | 12 V |
| Alternator Supplied Amperage | 42 amps |
| Rear Axle Oscillation | 22 degrees |
| Tire Size | 14.5-25 / 20.5-25 |
Transmission
| Transmission Type | Power shift Planetary |
| Number Of Forward Gears | 4 |
| Number Of Reverse Gears | 2 |
| Max Speed - Forward | 25.8 mph (41.5 km/h) |
| Max Speed - Reverse | 10.2 mph (16.4 km/h) |
Hydraulic System
| Relief Valve Setting | 2250 psi (158.2 kPa) |
| Pump Flow Capacity | 58.2 gal/min (220 L/min) |
| Pump Type | Gear |
