John Deere 644D Wheel Loader
Units
Dimensions
Bucket
G
Dump Clearance At Max Raise
9.75ft in
Bucket Capacity - Heaped
3yd3
Bucket Capacity - Struck
2.52yd3
Bucket Width
8.73ft in
Breakout Force
24430lb
Dimensions
E
Ground Clearance
1.69ft in
A
Length With Bucket On Ground
23.08ft in
B
Width Over Tires
8.55ft in
C
Height To Top Of Cab
10.5ft in
D
Wheelbase
9.59ft in
F
Hinge Pin - Max Height
12.67ft in
H
Reach At Max Lift And Dump
3.07ft in
Specifications
Engine
Number Of Cylinders
6
Engine Make
2240
Engine Model
6-466T
Net Power
155hp
Gross Power
165hp
Power Measured @
2200rpm
Max Torque
480lb ft
Displacement
466cu in
Torque Measured @
1400rpm
Aspiration
Turbocharged
Operational
Operating Weight
29320lb
Fuel Capacity
67gal
Hydraulic System Fluid Capacity
25.1gal
Engine Oil Fluid Capacity
5.1gal
Cooling System Fluid Capacity
7.4gal
Transmission Fluid Capacity
9.8gal
Front Axle/Diff Fluid Capacity
6.1gal
Rear Axle/Diff Fluid Capacity
6.1gal
Static Tipping Weight
25210lb
Turning Radius
16.5ft in
Operating Voltage
12V
Alternator Supplied Amperage
42amps
Rear Axle Oscillation
22degrees
Tire Size
20.5-25
Transmission
Transmission Type
Power shift planetary
Number Of Forward Gears
4
Number Of Reverse Gears
2
Max Speed - Forward
27.3mph
Max Speed - Reverse
8.2mph
Hydraulic System
Relief Valve Setting
2625psi
Pump Flow Capacity
63gal/min
Raise Time
6.1sec
Dump Time
2sec
Lower Time
4.3sec
Pump Type
Gear type pump
