Construction Machinery. Wheel-Mounted Loader John Deere 644K Z-Bar

Sizes

Height to cab upper part 3380 mm
Clearance 408 mm
Wheelbase 3260 mm
Length with bucket on ground level 8140 mm
Hinge axis maximum height 4070 mm
Between tyres width 2875 mm
Radius at maximum lifting and unloading 1120 mm

Shovel

Breakout power 150.8 kN
Unloading ground clearance at maximum lifting 2860 mm
Shovel width 3040 mm
Bucket capacity with top 3.2 m3
Brimmed bucket capacity 2.8 m3

Operation

Working weight 18160 kg
Fuel Capacity 352 l.
Hydraulic system fluid volume 110 l.
Engine oil volume 24.5 l.
Cooling system fluid volume 29.5 l.
Transmission fluid volume 23 l.
Front axle / differential fluid volume 22 l.
Rear axle / differential fluid volume 22 l.
Static tipping weight 15230 kg
Turn radius 5570 mm
Operating voltage 24 V
Generator current strength 80 amperes
Rear axle oscillating 26 degrees
Tyre size 23.5 R25

Motor

Manufacturer John Deere
Model 6068H, III Level III certified
Effective power 173 kW
Power measured at 1700 rev / min
Displacement 6.8 l.
Torque measured at 1400 rev / min
Cylinders number 6
Maximum torque 1016 Nm
Torque increase 55 %
Aspiration Turbocharger with charge air cooler by oncoming air flow

Hydraulic system

Type of pump variable displacement axial piston pump
Overflow valve pressure 25165.8 kPa
Pump bandwidth 310 l/min
Lifting time 5.5 sec
Unloading time 1.4 sec
Lowering time 3 sec

Gear box

Reverse gears number 3
Maximum forward speed 36.6 km/h
Maximum reverse gear 24.9 km/h
Transmission type Powershift transmission of intermediate type
Forward gears number 4

Images

Sizes

1. Length with bucket on ground level 8140 mm
2. Between tyres width 2875 mm
3. Height to cab upper part 3380 mm
4. Wheelbase 3260 mm
5. Clearance 408 mm
6. Hinge axis maximum height 4070 mm
8. Radius at maximum lifting and unloading 1120 mm

Shovel

7. Unloading ground clearance at maximum lifting 2860 mm