John Deere 644D Wheel Loader Specs

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

Bucket

John Deere 644D Wheel Loader Bucket specifications
Breakout Force	24,430.00 lbs (11,081.28 kg)
Bucket Capacity - Heaped	3 cu yd
Bucket Capacity - Struck	2.52 cu yd
Bucket Width	8.73 ft (2.66 m)
Dump Clearance At Max Raise	9.75 ft (2.97 m)

Dimensions

John Deere 644D Wheel Loader Dimensions specifications
Ground Clearance	1.69 ft (0.52 m)
Height	10.42 ft (3.18 m)
Height To Top Of Cab	10.50 ft (3.20 m)
Hinge Pin - Max Height	12.67 ft (3.86 m)
Length	23.08 ft (7.04 m)
Length With Bucket On Ground	23.08 ft (7.03 m)
Reach At Max Lift And Dump	3.07 ft (0.94 m)
Weight	29,320.00 lbs (13,299.34 kg)
Wheelbase	9.59 ft (2.92 m)
Width	8.42 ft (2.57 m)
Width Over Tires	8.55 ft (2.61 m)

Engine

John Deere 644D Wheel Loader Engine specifications
Aspiration	Turbocharged
Displacement	466.00 cu in (7,636.39 cu cm)
Engine Make	2240
Engine Model	6-466T
Gross Power	165.00 hp (123.04 kw)
Max Torque	480.00 lbs ft (650.78 nm)
Net Power	155.00 hp (115.59 kw)
Number Of Cylinders	6
Power Measured @	2200 rpm
Torque Measured @	1400 rpm

Hydraulic System

John Deere 644D Wheel Loader Hydraulic System specifications
Dump Time	2 sec
Lower Time	4.3 sec
Pump Flow Capacity	63.00 gpm (238.46 lpm)
Pump Type	Gear type pump
Raise Time	6.1 sec
Relief Valve Setting	2625 psi

Operational

John Deere 644D Wheel Loader Operational specifications
Alternator Supplied Amperage	42 amps
Cooling System Fluid Capacity	7.40 gal (28.01 l)
Engine Oil Fluid Capacity	5.10 gal (19.30 l)
Front Axle/Diff Fluid Capacity	6.10 gal (23.09 l)
Fuel Capacity	67.00 gal (253.60 l)
Hydraulic System Fluid Capacity	25.10 gal (95.00 l)
Operating Voltage	12 V
Operating Weight	29,320.00 lbs (13,299.34 kg)
Rear Axle Oscillation	22 degrees
Rear Axle/Diff Fluid Capacity	6.10 gal (23.09 l)
Static Tipping Weight	25,210.00 lbs (11,435.08 kg)
Tire Size	20.5-25
Transmission Fluid Capacity	9.80 gal (37.09 l)
Turning Radius	16.50 ft (5.03 m)

Transmission

John Deere 644D Wheel Loader Transmission specifications
Max Speed - Forward	27.30 mph (43.93 kph)
Max Speed - Reverse	8.20 mph (13.20 kph)
Number Of Forward Gears	4
Number Of Reverse Gears	2
Transmission Type	Power shift planetary

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