- Length W/ Bucket On Ground: 25.69 ft / 7830 mm
- Width Over Tires: 9 ft / 2743 mm
- Height To Top Of Cab: 11.23 ft / 3420 mm
- Wheelbase: 10.5 ft / 3200 m
Published dimensions and weight
John Deere 644G
The John Deere 644G is an integrated tool carrier of about 16 t, built around the 6076A engine.
01Published dimensions and weight
Dimensions reference
Representative category illustration; exact model may differ.Measurement reference — not to scale
01Dimensions referenceLength × width × height
02Operating Weight35236 lb15980 kg
03Selected published values55
Integrated tool carriers are commonly used for loading and material handling with interchangeable front attachments. Published rows for John Deere 644G include published bucket capacity of 3.8 yd3 / 2.9 m3, published breakout force of 35317 lb / 157.1 kN, published operating weight of 35236 lb / 15980 kg. These values describe the published configuration; verify the specific machine's configuration, attachments and records.
- Compare the published “Length W/ Bucket On Ground” field (25.69 ft / 7830 mm) with the specific machine's configuration and records; options and condition can differ.
- Compare the published “Width Over Tires” field (9 ft / 2743 mm) with the specific machine's configuration and records; options and condition can differ.
- Compare the published “Height To Top Of Cab” field (11.23 ft / 3420 mm) 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.
Dimensions
Length W/ Bucket On Ground25.69 ft7830 mm
Width Over Tires9 ft2743 mm
Height To Top Of Cab11.23 ft3420 mm
Wheelbase10.5 ft3200 m
Ground Clearance1.59 ft483 mm
Hinge Pin Max Height13.13 ft4000 mm
Dump Clearance At Max Lift9.42 ft2871 mm
Max Lift Height12.53 ft3818 mm
Fork Tine Length4.51 ft1372 mm
Hook Height At Max Lift - Standard18.81 ft5732 mm
Hook Height At Max Lift - Extended22.92 ft6985 mm
Hook Reach At Max Lift - Standard6.87 ft2092 mm
Hook Reach At Max Lift - Extended11.58 ft3527 mm
Length With Out Forks On Ground27.19 ft8287 mm
Reach At Max Height And Dump3.74 ft1138 mm
Engine
Number Of Cylinders66
Engine Make22402240
Engine Model6076A6076A
Gross Power178 hp133 kw
Net Power170 hp127 kw
Power Measured @2200 rpm2200 rpm
Max Torque598 lb ft811 Nm
Torque Measured @1300 rpm1300 rpm
Displacement466 cu in7.7 L
AspirationTurbocharged w/ AftercoolerTurbocharged w/ Aftercooler
Operational
Operating Weight35236 lb15980 kg
Fuel Capacity75 gal284 L
Cooling System Fluid Capacity7.6 gal28.5 L
Engine Oil Capacity6.4 gal24 L
Transmission Fluid Capacity3.7 gal14 L
Front Diff Fluid Capacity7.6 gal28.4 L
Rear Diff Fluid Capacity7.6 gal28.4 L
Hydraulic System Fluid Capacity30.4 gal115 L
Turning Radius18 ft5460 mm
Operating Voltage12 V12 V
Alternator Supplied Amperage95 amps95 amps
Rear Axle Oscillation26 degrees26 degrees
Static Tipping Load - Bucket26228 lb11896.9 kg
Static Tipping Load - Forks18251 lb8278.6 kg
Static Tipping Load - Material Handler13290 lb6028.3 kg
Tire Size20.5-2520.5-25
Transmission
Transmission TypePower ShiftPower Shift
Number Of Forward Gears44
Number Of Reverse Gears33
Max Speed Forward21.5 mph34.6 km/h
Max Speed Reverse13.7 mph22 km/h
Hydraulic System
Pump TypeGearGear
Relief Valve Setting3000 psi20684.3 kPa
Pump Flow Capacity69.5 gal/min263.1 L/min
Raise Time6.2 sec6.2 sec
Dump Time1.8 sec1.8 sec
Lower Time3.5 sec3.5 sec
Bucket
Breakout Force35317 lb157.1 kN
Bucket Capacity - Heaped3.8 yd32.9 m3
Bucket Capacity - Struck3.2 yd32.5 m3
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Manufacturer-published specifications.