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Current number of specifications

 
John Deere 644J Z-Bar Wheel Loader

Selected Dimensions

Bucket
G. Dump Clearance at Max Raise9.7 ft in2950 mm
Dimensions
A. Length with Bucket on Ground26.4 ft in8050 mm
B. Width Over Tires9.4 ft in2875 mm
C. Height to Top of Cab11.2 ft in3400 mm
D. Wheelbase10.5 ft in3200 mm
E. Ground Clearance1.4 ft in434 mm
F. Hinge Pin - Max Height13.6 ft in4140 mm
H. Reach at Max Lift and Dump3.7 ft in1120 mm

Specification

Engine
MakeJohn Deere
Model6068H
Net Power185 hp138 kw
Power Measured @2200 rpm
Displacement414 cu in6.8 L
Torque Measured @1400 rpm
Number of Cylinders6
Max Torque749 lb ft1016 Nm
Torque Rise55 %
AspirationTurbocharged charge air cooled
Operational
Operating Weight40150 lb18212 kg
Fuel Capacity93 gal352 L
Hydrauilc System Fluid Capacity31 gal117 L
Engine Oil Fluid Capacity6.5 gal24.5 L
Cooling System Fluid Capacity7.8 gal29.5 L
Transmission Fluid Capacity7 gal26.5 L
Front Axle/Diff Fluid Capacity5.8 gal22 L
Rear Axle/Diff Fluid Capacity5.8 gal22 L
Static Tipping Weight34379 lb15594 kg
Turning Radius18 ft in5490 mm
Operating Voltage24 V
Alternator Supplied Amperage80 amps
Rear Axle Oscillation26 degrees
Tire Size23.5 R25
Transmission
TypeAutomatic powershift
Number of Forward Gears4
Number of Reverse Gears3
Max Speed - Forward22 mph35.4 km/h
Max Speed - Reverse15.5 mph25 km/h
Hydraulic System
Pump TypeVariable axial piston
Relief Valve Pressure3600 psi24800 kPa
Pump Flow Capacity68 gal/min257 L/min
Raise Time6.2 sec
Dump Time1.4 sec
Lower Time3 sec
Bucket
Breakout Force34407 lb153 kN
Dump Clearance at Max Raise9.7 ft in2950 mm
Bucket Width9.5 ft in2895.6 mm
Bucket Capacity - heaped4.3 yd33.2 m3
Bucket Capacity - struck3.7 yd32.8 m3
Dimensions
Length with Bucket on Ground26.4 ft in8050 mm
Width Over Tires9.4 ft in2875 mm
Height to Top of Cab11.2 ft in3400 mm
Ground Clearance1.4 ft in434 mm
Wheelbase10.5 ft in3200 mm
Hinge Pin - Max Height13.6 ft in4140 mm
Reach at Max Lift and Dump3.7 ft in1120 mm