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John Deere

644B

Wheel Loader

Operating Weight
28,100 lb
Bucket Capacity - heaped
2.50 yd³
Gross Power
160.0 hp
Net Power
145.0 hp
All wheel loaders
John Deere 644B Wheel Loader
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Specifications

40 data points

Operating Specifications

Operating Specifications specifications
Operating Weight28,100 lb
Fuel Capacity56.0 gal
Tire Size14.5-25 / 20.5-25
Hydraulic System Fluid Capacity17.5 gal
Static Tipping Weight22,905 lb
Operating Voltage12 V
Turning Radius186 in
Engine Oil Fluid Capacity5.5 gal
Rear Axle Oscillation22 °
Alternator Supplied Amperage42 A
Front Axle/Diff Fluid Capacity6.0 gal
Rear Axle/Diff Fluid Capacity6.3 gal
Cooling System Fluid Capacity12.3 gal
Transmission Fluid Capacity9.8 gal

Engine

Engine specifications
Displacement531 in³
Power Measured @2,200 rpm
Gross Power160.0 hp
Net Power145.0 hp
Number of Cylinders6
AspirationTurbocharged
Torque Measured @1,500 rpm

Hydraulic System

Hydraulic System specifications
Pump Flow Capacity58.2 gal/min
Relief Valve Setting2,250 psi
Pump TypeGear

Dimensions

Dimensions specifications
Ground Clearance20 in
Height - Top of Cab128 in
Wheelbase104 in
Reach at Max Lift and Dump35 in
Length with Bucket on Ground253 in
Hinge Pin - Max Height144 in

Transmission

Transmission specifications
Max Speed - Forward25.8 mph
Max Speed - Reverse10.2 mph
Transmission TypePower shift Planetary
Number of Forward Gears4
Number of Reverse Gears2

Bucket

Bucket specifications
Bucket Capacity - heaped2.50 yd³
Bucket Capacity - struck2.11 yd³
Dump Clearance at Max Raise113 in
Breakout Force24,120 lb
Bucket Width106 in

Comparable machines

Other wheel loaders in a similar weight class.