John Deere 644H MH Wheel Loader
Units
Dimensions
Bucket
G
Dump Clearance At Max Raise
9.72ft in
Bucket Capacity - Heaped
4.5yd3
Bucket Capacity - Struck
3.8yd3
Bucket Width
9.98ft in
Breakout Force
34340lb
Dimensions
E
Ground Clearance
1.56ft in
A
Length With Bucket On Ground
25.64ft in
B
Width Over Tires
9.43ft in
C
Height To Top Of Cab
11.2ft in
D
Wheelbase
10.5ft in
F
Hinge Pin - Max Height
13.64ft in
H
Reach At Max Lift And Dump
3.47ft in
Specifications
Engine
Number Of Cylinders
6
Engine Make
2240
Engine Model
6081H
Net Power
180hp
Gross Power
212hp
Power Measured @
2200rpm
Max Torque
745lb ft
Displacement
496cu in
Torque Measured @
1300rpm
Aspiration
Turbocharger with Aftercooler
Torque Rise
40%
Operational
Operating Weight
38927lb
Fuel Capacity
90gal
Hydraulic System Fluid Capacity
31gal
Engine Oil Fluid Capacity
6.7gal
Cooling System Fluid Capacity
7.7gal
Transmission Fluid Capacity
6.9gal
Front Axle/Diff Fluid Capacity
7.2gal
Rear Axle/Diff Fluid Capacity
7.2gal
Static Tipping Weight
30906lb
Turning Radius
18.1ft in
Operating Voltage
24V
Alternator Supplied Amperage
55amps
Rear Axle Oscillation
26degrees
Tire Size
23.5-25
Transmission
Transmission Type
Power Shift
Number Of Forward Gears
4
Number Of Reverse Gears
3
Max Speed - Forward
24mph
Max Speed - Reverse
16.4mph
Hydraulic System
Relief Valve Setting
3600psi
Pump Flow Capacity
74gal/min
Raise Time
6sec
Dump Time
1.2sec
Lower Time
3sec
Pump Type
Piston Pump
