- Category: Wheel Loaders ➔
- Manufacturer: John Deere ➔
- Model: 644G ➔
The John Deere 644G is a versatile wheel loader designed for heavy-duty material handling and construction tasks. Equipped with a powerful engine and advanced hydraulics, the 644G delivers efficient performance and fuel economy. Its robust frame and durable components ensure long-lasting reliability in demanding environments. The operator cab offers enhanced visibility, ergonomic controls, and comfort features to improve productivity. Ideal for loading, lifting, and transporting materials such as gravel, soil, and debris, the John Deere 644G wheel loader supports various attachments for increased functionality. This model is widely used in construction, mining, agriculture, and industrial applications.
Bucket
| Breakout Force | 35,317 lbs (16,020 kg)
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| Bucket Capacity - heaped | 4 cu yd (3 cu m)
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| Bucket Capacity - struck | 3 cu yd (2 cu m)
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Dimensions
| Dump Clearance at Max Lift | 10 ft (3 m)
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| Fork Tine Length | 5 ft (1 m)
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| Ground Clearance | 2 ft (0 m)
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| Height - Top of Cab | 11 ft (3 m)
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| Hinge Pin Max Height | 13 ft (4 m)
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| Length w/ Bucket on Ground | 26 ft (8 m)
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| Length with out Forks on Ground | 27 ft (8 m)
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| Max Lift Height | 13 ft (4 m)
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| Reach at Max Height and Dump | 4 ft (1 m)
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| Wheelbase | 11 ft (3 m)
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| Width Over Tires | 9 ft (3 m)
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Engine
| Aspiration | Turbocharged w/ Aftercooler
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| Displacement | 466 cu in (7,636 cu cm)
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| Engine Model | 6076A
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| Gross Power | 178 hp (133 kw)
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| Max Torque | 598 lbs ft (811 nm)
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| Net Power | 170 hp (127 kw)
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| Number of Cylinders | 6
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| Power Measured @ | 2200 rpm
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| Torque Measured @ | 1300 rpm
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Hydraulic System
| Dump Time | 1.8 seconds
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| Lower Time | 3.5 seconds
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| Pump Flow Capacity | 70 gpm (263 lpm)
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| Pump Type | Gear
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| Raise Time | 6.2 seconds
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| Relief Valve Setting | 3000 psi
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Operating Specifications
| Alternator Supplied Amperage | 95 amps
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| Cooling System Fluid Capacity | 8 gal (29 l)
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| Engine Oil Capacity | 6 gal (24 l)
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| Front Diff Fluid Capacity | 8 gal (29 l)
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| Fuel Capacity | 75 gal (284 l)
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| Hydraulic System Fluid Capacity | 30 gal (115 l)
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| Operating Voltage | 12 volts
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| Operating Weight | 35,236 lbs (15,983 kg)
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| Rear Axle Oscillation | 26 degrees
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| Rear Diff Fluid Capacity | 8 gal (29 l)
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| Static Tipping Load - Bucket | 26,228 lbs (11,897 kg)
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| Static Tipping Load - Forks | 18,251 lbs (8,279 kg)
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| Static Tipping Load - Material Handler | 13,290 lbs (6,028 kg)
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| Tire Size | 20.5-25
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| Transmission Fluid Capacity | 4 gal (14 l)
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| Turning Radius | 18 ft (5 m)
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Transmission
| Max Speed Forward | 22 mph (35 kph)
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| Max Speed Reverse | 14 mph (22 kph)
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| Number of Forward Gears | 4
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| Number of Reverse Gears | 3
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| Transmission Type | Power Shift
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