| Manufacturer | John Deere |
|---|---|
| Model | 644A |
| Type | Wheel Loader |
| Horsepower | 131 hp (97,7 kW) |
| Weight | 2520 lbs (1143,1 kg) |
| Tipping Capacity | 18600 lbs (8436,8 kg) |
| Max Speed | 23 mph (37,0 km/h) |
| Aspiration | Turbocharged |
| Displacement | 404 cu in. (6620,4 cc) |
| Alternator Supplied Amperage | 55 amps |
| Operating Voltage | 12 V |
| Rated Speed | 2400 RPM |
| Torque Speed | 1600 RPM |
| Net Power | 131 hp (97,7 kW) |
| Gross Power | 141 hp (105,1 kW) |
| Peak Torque | 345 lbs ft (467,8 N-m) |
| Fuel Capacity | 50 gal (189,3 l) |
| Engine Oil Capacity | 4.3 gal (16,3 l) |
| Cooling Capacity | 9 gal (34,1 l) |
| Hydraulic System Capacity | 17.5 gal (66,2 l) |
| Transmission Oil Capacity | 9.8 gal (37,1 l) |
| Differential Front Capacity | 6 gal (22,7 l) |
| Differential Rear Capacity | 6.5 gal (24,6 l) |
| Transmission Type | Power shift |
| No of Forward Gears | 4 |
| No of Reverse Gears | 2 |
| Rear Axle Oscillation | 22° |
| Max Speed (Forward) | 23 mph (37,0 km/h) |
| Max Speed (Reverse) | 9.5 mph (15,3 km/h) |
| Pump type | Variable axial piston |
| Pump Flow | 60 GPM (227,1 LPM) |
| Relief Pressure | 2250 psi (155,1 bar) |
| Operating Weight | 2520 lbs (1143,1 kg) |
| Tipping Load | 18600 lbs (8436,8 kg) |
| Bucket Capacity (Heaped) | 2.5 cu yds (1,9 m³) |
| Bucket Capacity (Struck) | 2.1 cu yds (1,6 m³) |
| Bucket Width | 108 in (274,3 cm) |
| Breakout Force | 41520 lbs (18833,1 kg) |
| Reach At Max Lift And Dump | 36 in (91,4 cm) |
| Dump Clearance At Max Raise | 108 in (274,3 cm) |
| Turning Radius | 192 in (487,7 cm) |
| Wheelbase | 108 in (274,3 cm) |
| Bucket Hinge Pin | 144 in (365,8 cm) |
| Cab Height | 120 in (304,8 cm) |
| Overall Length | 252 in (640,1 cm) |
| Ground Clearance | 12 in (30,5 cm) |
| Tire Size | 16-24 / 20.5- 25 |
John Deere 644A Specs (Weight, Lift Capacity, Hp, Dimensions)
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