John Deere 644A Wheel Loader Specs

Category: Wheel Loaders ➔
Manufacturer: John Deere ➔
Model: 644A ➔

Bucket

John Deere 644A Wheel Loader Bucket specifications
Breakout Force	41,515.00 lbs (18,830.91 kg)
Bucket Capacity - heaped	2.50 cu yd (1.91 cu m)
Bucket Capacity - struck	2.10 cu yd (1.61 cu m)
Bucket Width	8.70 ft (2.65 m)
Dump Clearance at Max Raise	9.30 ft (2.83 m)

Dimensions

John Deere 644A Wheel Loader Dimensions specifications
Ground Clearance	1.50 ft (0.46 m)
Height - Top of Cab	10.20 ft (3.11 m)
Hinge Pin - Max Height	11.90 ft (3.63 m)
Length with Bucket on Ground	20.70 ft (6.31 m)
Reach at Max Lift and Dump	3.00 ft (0.91 m)
Wheelbase	8.70 ft (2.65 m)

Engine

John Deere 644A Wheel Loader Engine specifications
Aspiration	Turbocharged
Displacement	404.00 cu in (6,620.39 cu cm)
Gross Power	141.00 hp (105.15 kw)
Net Power	131.00 hp (97.69 kw)
Power Measured @	2400 rpm
Torque Measured @	1600 rpm

Hydraulic System

John Deere 644A Wheel Loader Hydraulic System specifications
Pump Flow Capacity	60.00 gpm (227.10 lpm)
Pump Type	Variable displacement type pump
Relief Valve Setting	2250 psi

Operating Specifications

John Deere 644A Wheel Loader Operating Specifications specifications
Alternator Supplied Amperage	55 amps
Cooling System Fluid Capacity	9.00 gal (34.07 l)
Engine Oil Fluid Capacity	4.30 gal (16.28 l)
Front Axle/Diff Fluid Capacity	6.00 gal (22.71 l)
Fuel Capacity	50.00 gal (189.25 l)
Hydraulic System Fluid Capacity	17.50 gal (66.24 l)
Operating Voltage	12 volts
Operating Weight	2,520.00 lbs (1,143.05 kg)
Rear Axle Oscillation	22 degrees
Rear Axle/Diff Fluid Capacity	6.50 gal (24.60 l)
Static Tipping Weight	18,604.00 lbs (8,438.64 kg)
Tire Size	16-24 / 20.5- 25
Transmission Fluid Capacity	9.80 gal (37.09 l)
Turning Radius	15.50 ft (4.72 m)

Transmission

John Deere 644A Wheel Loader Transmission specifications
Max Speed - Forward	23.00 mph (37.01 kph)
Max Speed - Reverse	9.50 mph (15.29 kph)
Number of Forward Gears	4
Number of Reverse Gears	2
Transmission Type	Powershift Transmission

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