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John Deere

644GH

Wheel Loader

Operating Weight
36,634 lb
Bucket Capacity - heaped
4.00 yd³
Gross Power
196.0 hp
Net Power
185.0 hp
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John Deere 644GH Wheel Loader
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Specifications

45 data points

Operating Specifications

Operating Specifications specifications
Operating Weight36,634 lb
Fuel Capacity75.1 gal
Tire Size20.5-25
Hydraulic System Fluid Capacity30.4 gal
Static Tipping Weight29,712 lb
Operating Voltage12 V
Turning Radius216 in
Engine Oil Fluid Capacity6.4 gal
Rear Axle Oscillation26 °
Alternator Supplied Amperage95 A
Front Axle/Diff Fluid Capacity7.4 gal
Rear Axle/Diff Fluid Capacity7.4 gal
Cooling System Fluid Capacity7.6 gal
Transmission Fluid Capacity3.7 gal

Engine

Engine specifications
Engine Model6076A
Displacement466 in³
Power Measured @2,200 rpm
Gross Power196.0 hp
Net Power185.0 hp
Number of Cylinders6
AspirationTurbocharged and Aftercooled
Torque Measured @1,300 rpm

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 pump type

Dimensions

Dimensions specifications
Ground Clearance19 in
Height - Top of Cab135 in
Wheelbase126 in
Width Over Tires108 in
Reach at Max Lift and Dump42 in
Length with Bucket on Ground309 in
Hinge Pin - Max Height158 in

Transmission

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

Bucket

Bucket specifications
Bucket Capacity - heaped4.00 yd³
Bucket Capacity - struck3.70 yd³
Dump Clearance at Max Raise117 in
Breakout Force38,045 lb
Bucket Width121 in

Comparable machines

Other wheel loaders in a similar weight class.