John Deere 644J ZBar Specs (Weight, Lift Capacity, Hp, Dimensions)

Manufacturer John Deere
Model 644J ZBar
Type Wheel Loader
Horsepower 185 hp (138,0 kW)
Weight 40150 lbs (18211,7 kg)
Tipping Capacity 34380 lbs (15594,5 kg)
Max Speed 22 mph (35,4 km/h)
Engine Model 6068H
No Of Cylinders 6
Aspiration Turbocharged charge air cooled
Displacement 414 cu in. (6784,3 cc)
Alternator Supplied Amperage 80 amps
Operating Voltage 24 V
Rated Speed 2200 RPM
Torque Speed 1400 RPM
Net Power 185 hp (138,0 kW)
Peak Torque 749 lbs ft (1015,5 N-m)
Torque Rise 55 %
Fuel Capacity 93 gal (352,0 l)
Engine Oil Capacity 6.5 gal (24,6 l)
Cooling Capacity 7.8 gal (29,5 l)
Hydraulic System Capacity 31 gal (117,3 l)
Transmission Oil Capacity 7.1 gal (26,9 l)
Differential Front Capacity 5.9 gal (22,3 l)
Differential Rear Capacity 5.9 gal (22,3 l)
Transmission Type Power shift
No of Forward Gears 4
No of Reverse Gears 3
Rear Axle Oscillation 26°
Max Speed (Forward) 22 mph (35,4 km/h)
Max Speed (Reverse) 15.5 mph (24,9 km/h)
Pump type Variable axial piston
Pump Flow 68 GPM (257,4 LPM)
Relief Pressure 3600 psi (248,2 bar)
Raise Lift Arms 6.2 sec
Lower Lift Time 3 sec
Bucket Dump Time 1.4 sec
Operating Weight 40150 lbs (18211,7 kg)
Tipping Load 34380 lbs (15594,5 kg)
Bucket Capacity (Heaped) 4.3 cu yds (3,3 m³)
Bucket Capacity (Struck) 3.7 cu yds (2,8 m³)
Bucket Width 120 in (304,8 cm)
Breakout Force 34410 lbs (15608,1 kg)
Reach At Max Lift And Dump 48 in (121,9 cm)
Dump Clearance At Max Raise 120 in (304,8 cm)
Turning Radius 216 in (548,6 cm)
Wheelbase 120 in (304,8 cm)
Bucket Hinge Pin 168 in (426,7 cm)
Cab Height 132 in (335,3 cm)
Overall Length 312 in (792,5 cm)
Ground Clearance 12 in (30,5 cm)
Width Over Tires 108 in (274,3 cm)
Tire Size 23.5 R25

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