John Deere 644D
Browse All John Deere or Wheel Loader Models
Contents:
Bucket
| Dump Clearance At Max Raise | 9.75 ft in (2970 mm) |
| Bucket Capacity - Heaped | 3 yd3 (2.3 m3) |
| Bucket Capacity - Struck | 2.52 yd3 (1.93 m3) |
| Bucket Width | 8.73 ft in (2660 mm) |
| Breakout Force | 24430 lb (109 kN) |
Dimensions
| Ground Clearance | 1.69 ft in (514 mm) |
| Length With Bucket On Ground | 23.08 ft in (7034.79 mm) |
| Width Over Tires | 8.55 ft in (2605 mm) |
| Height To Top Of Cab | 10.5 ft in (3200.4 mm) |
| Wheelbase | 9.59 ft in (2920 mm) |
| Hinge Pin - Max Height | 12.67 ft in (3861.82 mm) |
| Reach At Max Lift And Dump | 3.07 ft in (933 mm) |
Engine
| Number Of Cylinders | 6 |
| Engine Make | 2240 |
| Engine Model | 6-466T |
| Net Power | 155 hp (115.6 kw) |
| Gross Power | 165 hp (123.1 kw) |
| Power Measured @ | 2200 rpm |
| Max Torque | 480 lb ft (650.8 Nm) |
| Displacement | 466 cu in (7.7 L) |
| Torque Measured @ | 1400 rpm |
| Aspiration | Turbocharged |
Operational
| Operating Weight | 29320 lb (13300 kg) |
| Fuel Capacity | 67 gal (254 L) |
| Hydraulic System Fluid Capacity | 25.1 gal (95 L) |
| Engine Oil Fluid Capacity | 5.1 gal (19 L) |
| Cooling System Fluid Capacity | 7.4 gal (28 L) |
| Transmission Fluid Capacity | 9.8 gal (37 L) |
| Front Axle/Diff Fluid Capacity | 6.1 gal (23 L) |
| Rear Axle/Diff Fluid Capacity | 6.1 gal (23 L) |
| Static Tipping Weight | 25210 lb (11435.1 kg) |
| Turning Radius | 16.5 ft in (5029.2 mm) |
| Operating Voltage | 12 V |
| Alternator Supplied Amperage | 42 amps |
| Rear Axle Oscillation | 22 degrees |
| Tire Size | 20.5-25 |
Transmission
| Transmission Type | Power shift planetary |
| Number Of Forward Gears | 4 |
| Number Of Reverse Gears | 2 |
| Max Speed - Forward | 27.3 mph (43.9 km/h) |
| Max Speed - Reverse | 8.2 mph (13.2 km/h) |
Hydraulic System
| Relief Valve Setting | 2625 psi (18099 kPa) |
| Pump Flow Capacity | 63 gal/min (238.5 L/min) |
| Raise Time | 6.1 sec |
| Dump Time | 2 sec |
| Lower Time | 4.3 sec |
| Pump Type | Gear type pump |
