John Deere 644B Wheel Loader
Units
Dimensions
Bucket
G
Dump Clearance At Max Raise
9.33ft in
Breakout Force
24120lb
Bucket Capacity - Heaped
2.5yd3
Bucket Capacity - Struck
2.05yd3
Bucket Width
8.73ft in
Dimensions
E
Ground Clearance
1.66ft in
A
Length With Bucket On Ground
21.1ft in
C
Height To Top Of Cab
10.63ft in
D
Wheelbase
8.67ft in
F
Hinge Pin - Max Height
12ft in
H
Reach At Max Lift And Dump
2.89ft in
Specifications
Engine
Number Of Cylinders
6
Engine Make
2240
Net Power
145hp
Gross Power
160hp
Power Measured @
2200rpm
Max Torque
432lb ft
Displacement
531cu in
Torque Measured @
1500rpm
Aspiration
Turbocharged
Operational
Operating Weight
28100lb
Fuel Capacity
56gal
Hydraulic System Fluid Capacity
17.5gal
Engine Oil Fluid Capacity
5.5gal
Cooling System Fluid Capacity
12.3gal
Transmission Fluid Capacity
9.8gal
Front Axle/Diff Fluid Capacity
6gal
Rear Axle/Diff Fluid Capacity
6.3gal
Static Tipping Weight
22905lb
Turning Radius
15.5ft in
Operating Voltage
12V
Alternator Supplied Amperage
42amps
Rear Axle Oscillation
22degrees
Tire Size
14.5-25 / 20.5-25
Transmission
Transmission Type
Power shift Planetary
Number Of Forward Gears
4
Number Of Reverse Gears
2
Max Speed - Forward
25.8mph
Max Speed - Reverse
10.2mph
Hydraulic System
Relief Valve Setting
2250psi
Pump Flow Capacity
58.2gal/min
Pump Type
Gear
