Construction Machinery. Wheel-Mounted Loader John Deere 644A

Sizes

Length with bucket on ground level 6300.2 mm
Height to cab upper part 3099.8 mm
Clearance 437 mm
Wheelbase 2640 mm
Hinge axis maximum height 3610 mm
Radius at maximum lifting and unloading 889 mm

Shovel

Breakout power 184.7 kN
Unloading ground clearance at maximum lifting 2819.4 mm
Shovel width 2650 mm
Bucket capacity with top 1.9 m3
Brimmed bucket capacity 1.6 m3

Operation

Working weight 11440 kg
Fuel Capacity 189.3 l.
Hydraulic system fluid volume 66.2 l.
Engine oil volume 16.1 l.
Cooling system fluid volume 34.1 l.
Transmission fluid volume 36.9 l.
Front axle / differential fluid volume 22.7 l.
Rear axle / differential fluid volume 24.6 l.
Static tipping weight 8439 kg
Turn radius 4700 mm
Operating voltage 12 V
Generator current strength 55 amperes
Rear axle oscillating 22 degrees
Tyre size 16-24 / 20.5- 25

Motor

Manufacturer John Deere
Effective power 133 kW
Full power 143 kW
Power measured at 2400 rev / min
Displacement 6.6 l.
Torque measured at 1600 rev / min
Maximum torque 467.8 Nm
Aspiration turbocharging

Hydraulic system

Type of pump variable displacement piston pump
Overflow valve pressure 15513.2 kPa
Pump bandwidth 227 l/min

Gear box

Transmission type powershift transmission
Forward gears number 4
Reverse gears number 2
Maximum forward speed 37 km/h
Maximum reverse gear 15.3 km/h

Images

Sizes

1. Length with bucket on ground level 6300.2 mm
3. Height to cab upper part 3099.8 mm
4. Wheelbase 2640 mm
5. Clearance 437 mm
6. Hinge axis maximum height 3610 mm
8. Radius at maximum lifting and unloading 889 mm

Shovel

7. Unloading ground clearance at maximum lifting 2819.4 mm