John Deere 644K HYBRID Wheel Loader

Bucket

Breakout Force 33,903 lbs (15,378 kg)
Bucket Capacity – Smallest 4 cu yd (3 cu m)
Dump Clearance at Max Raise 10 ft (3 m)
Largest bucket capacity 4 cu yd (3 cu m)

Capacities

Heaped Capacity 4 cu yd (3 cu m)
Hydraulic Tank 28 gal (106 l)
Transmission 10 gal (38 l)

Dimensions

Height – Top of Cab 11 ft (3 m)
Hinge Pin – Max Height 14 ft (4 m)
Length with Bucket on Ground 27 ft (8 m)
Reach at Max Lift and Dump 5 ft (2 m)
Turning Circle 44 ft (13 m)
Wheelbase 11 ft (3 m)
Width Over Tires 10 ft (3 m)

Driveline

Differential lock Front- Locking, Rear- Open
Parking Brake Type Wet Multi Disc – Transmission
Ride control system Optional
Service Brake – Location Axle Inboard
Service Brake Actuation Hydraulic
Service Brake Type Wet Disc
Tire size – Standard 23.5 R25

Engine

Alternator 100 amps
Displacement 415 cu in (6,801 cu cm)
Emission level Tier 4
Engine Make John Deere
Engine Model PowerTech PSX 6068
Engine Output-Net 229 hp (171 kw)
Make Deere
Model PowerTech PSX 6068
Net Power 229 hp (171 kw)
Pump Piston
Rated Speed 1700 rpm
System Voltage 24 V
Torque 731 lbs ft (991 nm)
Torque Rise 19%
Transmission Type Powershift w/Hybrid-Electric Drive

Operating Specifications

Front Axle/Diff Fluid Capacity 6 gal (22 l)
Fuel Capacity 105 gal (397 l)
Operating Weight 40,435 lbs (18,341 kg)
Rated Bucket Capacity 4 cu yd (3 cu m)
Rear Axle/Diff Fluid Capacity 6 gal (22 l)

Transmission

Pump Flow 79 gpm (297 lpm)
System Pressure 251.7 psi

Weights

Operational Weight 40,436-42,206 lbs (18,341-19,144 kg)
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