John Deere 644E Wheel Loader

Bucket

Dump Clearance At Max Raise 9.77 ft in (2975 mm)
Bucket Capacity – Heaped 3.25 yd3 (2.49 m3)
Bucket Capacity – Struck 2.78 yd3 (2.13 m3)
Bucket Width 9.13 ft in (2780 mm)
Breakout Force 37073 lb (164.91 kN)

Dimensions

Ground Clearance 1.65 ft in (500 mm)
Length With Bucket On Ground 25.2 ft in (7680 mm)
Width Over Tires 8.71 ft in (2652 mm)
Height To Top Of Cab 11.16 ft in (3400 mm)
Wheelbase 10.5 ft in (3200 mm)
Hinge Pin – Max Height 13.13 ft in (4000 mm)
Reach At Max Lift And Dump 3.09 ft in (940 mm)

Engine Details

Number Of Cylinders 6
Engine Make John Deere
Engine Model 6466T
Net Power 160 hp (119.4 kw)
Gross Power 168 hp (125.3 kw)
Power Measured @ 2200 rpm
Max Torque 510 lb ft (691.5 Nm)
Displacement 466 cu in (7.7 L)
Torque Measured @ 1400 rpm
Aspiration Turbocharged

Operational Specs

Operating Weight 34108 lb (15471 kg)
Fuel Tank Capacity 75 gal (284 L)
Hydraulic System Fluid Capacity 30.4 gal (115 L)
Engine Oil Fluid Capacity 6.4 gal (24 L)
Cooling System Fluid Capacity 7.6 gal (28.5 L)
Transmission Fluid Capacity 3.7 gal (14 L)
Front Axle/Diff Fluid Capacity 6.1 gal (23 L)
Rear Axle/Diff Fluid Capacity 6.1 gal (23 L)
Static Tipping Weight 27181 lb (12329 kg)
Turning Radius 17.8 ft in (5420 mm)
Operating Voltage 12 V
Alternator Supplied Amperage 65 amps
Rear Axle Oscillation 26 degrees
Tire Size 20.5-25

Transmission

Transmission Type Power Shift
Number Of Forward Gears 4
Number Of Reverse Gears 3
Max Speed – Forward 25.5 mph (41 km/h)
Max Speed – Reverse 16.4 mph (26.4 km/h)

Hydraulic System

Relief Valve Setting 2850 psi (19650.1 kPa)
Pump Flow Capacity 65.5 gal/min (248 L/min)
Raise Time 6.2 sec
Dump Time 1.8 sec
Lower Time 3.5 sec
Pump Type Gear
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