- Dump Clearance At Max Raise: 9.25 ft / 2819.4 mm
- Breakout Force: 41515 lb / 184.67 kN
- Bucket Capacity - Heaped: 2.5 yd3 / 1.92 m3
- Bucket Capacity - Struck: 2.05 yd3 / 1.57 m3
Published dimensions and weight
John Deere 644A
Weighing roughly 11.4 t and rated at 131 hp, the John Deere 644A is a wheel loader in its size class.
01Published dimensions and weight
Dimensions reference
Measurement reference — not to scale
01Dimensions referenceLength × width × height
02WeightNot publishedNot published
03Selected published values41
Wheel loaders are commonly used to load, carry and stockpile loose material on prepared surfaces. Published rows for John Deere 644A include published bucket capacity of 2.5 yd3 / 1.92 m3, published breakout force of 41515 lb / 184.67 kN, published operating weight of 2520 lb / 11440 kg. These values describe the published configuration; verify the specific machine's configuration, attachments and records.
- Compare the published “Dump Clearance At Max Raise” field (9.25 ft / 2819.4 mm) with the specific machine's configuration and records; options and condition can differ.
- Compare the published “Breakout Force” field (41515 lb / 184.67 kN) with the specific machine's configuration and records; options and condition can differ.
- Compare the published “Bucket Capacity - Heaped” field (2.5 yd3 / 1.92 m3) with the specific machine's configuration and records; options and condition can differ.
02Specifications
Published values, clearly grouped.
Published specifications and measurements are organized by section for quick reference.
Bucket
Dump Clearance At Max Raise9.25 ft2819.4 mm
Breakout Force41515 lb184.67 kN
Bucket Capacity - Heaped2.5 yd31.92 m3
Bucket Capacity - Struck2.05 yd31.57 m3
Bucket Width8.7 ft2650 mm
Dimensions
Ground Clearance1.44 ft437 mm
Length With Bucket On Ground20.67 ft6300.22 mm
Height To Top Of Cab10.17 ft3099.82 mm
Wheelbase8.67 ft2640 mm
Hinge Pin - Max Height11.85 ft3610 mm
Reach At Max Lift And Dump2.92 ft889 mm
Engine
Engine Make22402240
Net Power131 hp133 kw
Gross Power141 hp143 kw
Power Measured @2400 rpm2400 rpm
Max Torque345 lb ft467.8 Nm
Displacement404 cu in6.7 L
Torque Measured @1600 rpm1600 rpm
AspirationTurbochargedTurbocharged
Operational
Operating Weight2520 lb11440 kg
Fuel Capacity50 gal189.3 L
Hydraulic System Fluid Capacity17.5 gal66.2 L
Engine Oil Fluid Capacity4.3 gal16.1 L
Cooling System Fluid Capacity9 gal34.1 L
Transmission Fluid Capacity9.8 gal36.9 L
Front Axle/Diff Fluid Capacity6 gal22.7 L
Rear Axle/Diff Fluid Capacity6.5 gal24.6 L
Static Tipping Weight18604 lb8439 kg
Turning Radius15.5 ft4700.1 mm
Operating Voltage12 V12 V
Alternator Supplied Amperage55 amps55 amps
Rear Axle Oscillation22 degrees22 degrees
Tire Size16-24 / 20.5- 2516-24 / 20.5- 25
Transmission
Transmission TypePowershift TransmissionPowershift Transmission
Number Of Forward Gears44
Number Of Reverse Gears22
Max Speed - Forward23 mph37 km/h
Max Speed - Reverse9.5 mph15.3 km/h
Hydraulic System
Relief Valve Setting2250 psi15513.2 kPa
Pump Flow Capacity60 gal/min227 L/min
Pump TypeVariable displacement type pumpVariable displacement type pump
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Manufacturer-published specifications.