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John Deere

644G

Wheel Loader

Operating Weight
35,236 lb
Bucket Capacity - heaped
3.81 yd³
Gross Power
178.0 hp
Net Power
170.0 hp
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John Deere 644G Wheel Loader
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Specifications

50 data points

Operating Specifications

Operating Specifications specifications
Operating Weight35,236 lb
Fuel Capacity75.0 gal
Tire Size20.5-25
Hydraulic System Fluid Capacity30.4 gal
Operating Voltage12 V
Turning Radius216 in
Rear Axle Oscillation26 °
Alternator Supplied Amperage95 A
Cooling System Fluid Capacity7.6 gal
Transmission Fluid Capacity3.7 gal
Engine Oil Capacity6.4 gal
Static Tipping Load - Bucket26,228 lb
Front Diff Fluid Capacity7.6 gal
Rear Diff Fluid Capacity7.6 gal
Static Tipping Load - Forks18,251 lb
Static Tipping Load - Material Handler13,290 lb

Engine

Engine specifications
Engine Model6076A
Displacement466 in³
Power Measured @2,200 rpm
Gross Power178.0 hp
Net Power170.0 hp
Number of Cylinders6
AspirationTurbocharged w/ Aftercooler
Torque Measured @1,300 rpm
Max Torque598 lb-ft

Hydraulic System

Hydraulic System specifications
Pump Flow Capacity69.5 gal/min
Raise Time6.2 s
Lower Time3.5 s
Dump Time1.8 s
Relief Valve Setting3,000 psi
Pump TypeGear

Dimensions

Dimensions specifications
Ground Clearance19 in
Height - Top of Cab135 in
Wheelbase126 in
Width Over Tires108 in
Hinge Pin - Max Height158 in
Length w/ Bucket on Ground308 in
Dump Clearance at Max Lift114 in
Reach at Max Height and Dump46 in
Max Lift Height151 in
Fork Tine Length55 in
Length with out Forks on Ground326 in

Transmission

Transmission specifications
Max Speed - Forward21.5 mph
Max Speed - Reverse13.7 mph
Transmission TypePower Shift
Number of Forward Gears4
Number of Reverse Gears3

Bucket

Bucket specifications
Bucket Capacity - heaped3.81 yd³
Bucket Capacity - struck3.20 yd³
Breakout Force35,317 lb

Comparable machines

Other wheel loaders in a similar weight class.