John Deere 644A
Browse All John Deere or Wheel Loader Models
Contents:
Bucket
| Dump Clearance At Max Raise | 9.25 ft in (2819.4 mm) |
| Breakout Force | 41515 lb (184.67 kN) |
| Bucket Capacity - Heaped | 2.5 yd3 (1.92 m3) |
| Bucket Capacity - Struck | 2.05 yd3 (1.57 m3) |
| Bucket Width | 8.7 ft in (2650 mm) |
Dimensions
| Ground Clearance | 1.44 ft in (437 mm) |
| Length With Bucket On Ground | 20.67 ft in (6300.22 mm) |
| Height To Top Of Cab | 10.17 ft in (3099.82 mm) |
| Wheelbase | 8.67 ft in (2640 mm) |
| Hinge Pin - Max Height | 11.85 ft in (3610 mm) |
| Reach At Max Lift And Dump | 2.92 ft in (889 mm) |
Engine
| Engine Make | 2240 |
| Net Power | 131 hp (133 kw) |
| Gross Power | 141 hp (143 kw) |
| Power Measured @ | 2400 rpm |
| Max Torque | 345 lb ft (467.8 Nm) |
| Displacement | 404 cu in (6.7 L) |
| Torque Measured @ | 1600 rpm |
| Aspiration | Turbocharged |
Operational
| Operating Weight | 2520 lb (11440 kg) |
| Fuel Capacity | 50 gal (189.3 L) |
| Hydraulic System Fluid Capacity | 17.5 gal (66.2 L) |
| Engine Oil Fluid Capacity | 4.3 gal (16.1 L) |
| Cooling System Fluid Capacity | 9 gal (34.1 L) |
| Transmission Fluid Capacity | 9.8 gal (36.9 L) |
| Front Axle/Diff Fluid Capacity | 6 gal (22.7 L) |
| Rear Axle/Diff Fluid Capacity | 6.5 gal (24.6 L) |
| Static Tipping Weight | 18604 lb (8439 kg) |
| Turning Radius | 15.5 ft in (4700.1 mm) |
| Operating Voltage | 12 V |
| Alternator Supplied Amperage | 55 amps |
| Rear Axle Oscillation | 22 degrees |
| Tire Size | 16-24 / 20.5- 25 |
Transmission
| Transmission Type | Powershift Transmission |
| Number Of Forward Gears | 4 |
| Number Of Reverse Gears | 2 |
| Max Speed - Forward | 23 mph (37 km/h) |
| Max Speed - Reverse | 9.5 mph (15.3 km/h) |
Hydraulic System
| Relief Valve Setting | 2250 psi (15513.2 kPa) |
| Pump Flow Capacity | 60 gal/min (227 L/min) |
| Pump Type | Variable displacement type pump |
