John Deere 644J Waste Handler High-Lift Wheel Loader

Bucket

Dump Clearance At Max Raise 10.83 ft in (3300 mm)
Bucket Capacity – Heaped 6 yd3 (4.6 m3)
Bucket Capacity – Struck 5.5 yd3 (4.2 m3)
Bucket Width 9.5 ft in (2895.6 mm)
Breakout Force 25604 lb (113.9 kN)

Dimensions

Ground Clearance 1.5 ft in (460 mm)
Length With Bucket On Ground 26.75 ft in (8150 mm)
Width Over Tires 9.42 ft in (2875.3 mm)
Height To Top Of Cab 11.17 ft in (3400 mm)
Wheelbase 10.5 ft in (3200 mm)
Hinge Pin – Max Height 15.17 ft in (4620 mm)
Reach At Max Lift And Dump 4.33 ft in (1330 mm)

Engine Details

Number Of Cylinders 6
Engine Make John Deere
Engine Model 6068H
Net Power 185 hp (138 kw)
Power Measured @ 2200 rpm
Max Torque 749 lb ft (1016 Nm)
Displacement 414 cu in (6.8 L)
Torque Measured @ 1400 rpm
Torque Rise 55 %

Operational Specs

Operating Weight 49130 lb (22285 kg)
Fuel Tank Capacity 93 gal (352 L)
Hydraulic System Fluid Capacity 31 gal (117 L)
Engine Oil Fluid Capacity 6.5 gal (24.5 L)
Cooling System Fluid Capacity 7.8 gal (29.5 L)
Transmission Fluid Capacity 7.1 gal (26.5 L)
Front Axle/Diff Fluid Capacity 5.9 gal (22 L)
Rear Axle/Diff Fluid Capacity 5.9 gal (22 L)
Static Tipping Weight 29040 lb (13173 kg)
Turning Radius 18 ft in (5490 mm)
Operating Voltage 24 V
Alternator Supplied Amperage 80 amps
Rear Axle Oscillation 18 degrees
Tire Size 23.5 -25

Transmission

Transmission Type Automatic Powershift
Number Of Forward Gears 3
Number Of Reverse Gears 3
Max Speed – Forward 14.7 mph (23.7 km/h)
Max Speed – Reverse 15.5 mph (25 km/h)

Hydraulic System

Relief Valve Setting 3600 psi (24800 kPa)
Pump Flow Capacity 68 gal/min (257 L/min)
Raise Time 6.2 sec
Dump Time 1.4 sec
Lower Time 3.2 sec
Pump Type Variable axial piston
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