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John Deere 644G Wheel Loader

Bucket

Breakout Force35317 lbs (16,020 kg)
Bucket Capacity - heaped3.8 cu yds (3 m)
Bucket Capacity - struck3.2 cu yds (2 m)

Dimensions

Dump Clearance at Max Lift9.5 ft (3 m)
Fork Tine Length4.6 ft (1 m)
Ground Clearance1.6 ft (0 m)
Height - Top of Cab11.3 ft (3 m)
Hinge Pin Max Height13.2 ft (4 m)
Hook Height at Max Lift - extended22.92 ft (7 m)
Hook Height at Max Lift - Extended23 ft (7 m)
Hook Height at Max Lift - standard18.81 ft (6 m)
Hook Height at Max Lift - Standard18.9 ft (6 m)
Hook Reach at Max Lift - extended11.58 ft (4 m)
Hook Reach at Max Lift - Extended11.6 ft (4 m)
Hook Reach at Max Lift - Standard6.9 ft (2 m)
Hook Reach at Max Lift - standard6.87 ft (2 m)
Length w/ Bucket on Ground25.7 ft (8 m)
Length with out Forks on Ground27.2 ft (8 m)
Max Lift Height12.6 ft (4 m)
Reach at Max Height and Dump3.8 ft (1 m)
Wheelbase10.5 ft (3 m)
Width Over Tires9 ft (3 m)

Engine

AspirationTurbocharged w/ Aftercooler
Displacement466 cu in (0 m)
Engine Model6076A
Gross Power178 hp (133 kw)
Max Torque598 lbs/ft
Net Power170 hp (127 kw)
Number of Cylinders6
Power Measured @2200 rpm
Torque Measured @1300 rpm

Hydraulic System

Dump Time1.8 sec
Lower Time3.5 sec
Pump Flow Capacity69.5 gal/min (263 l/min)
Pump TypeGear
Raise Time6.2 sec
Relief Valve Setting3000 psi

Operating Specifications

Alternator Supplied Amperage95 A
Cooling System Fluid Capacity7.6 gal (29 l)
Engine Oil Capacity6.4 gal (24 l)
Front Diff Fluid Capacity7.6 gal (29 l)
Fuel Capacity75 gal (284 l)
Hydraulic System Fluid Capacity30.4 gal (115 l)
Operating Voltage12 V V
Operating Weight35236 lbs (15,983 kg)
Rear Axle Oscillation26 °
Rear Diff Fluid Capacity7.6 gal (29 l)
Static Tipping Load - Bucket26228 lbs (11,897 kg)
Static Tipping Load - Forks18251 lbs (8,279 kg)
Static Tipping Load - Material Handler13290 lbs (6,028 kg)
Tire Size20.5-25
Transmission Fluid Capacity3.7 gal (14 l)
Turning Radius18 ft (5 m)

Transmission

Max Speed Forward21.5 mph (35 kph)
Max Speed Reverse13.7 mph (22 kph)
Number of Forward Gears4
Number of Reverse Gears3
Transmission TypePower Shift

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