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John Deere 644EH Wheel Loader

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General Specifications

Bucket

Breakout Force34,257 lbs (15,539 kg)
Bucket Capacity - heaped4 cu yd (3 cu m)
Bucket Capacity - struck3 cu yd (2 cu m)
Bucket Width10 ft (3 m)
Dump Clearance at Max Raise10 ft (3 m)

Dimensions

Ground Clearance2 ft (1 m)
Height - Top of Cab11 ft (3 m)
Hinge Pin - Max Height13 ft (4 m)
Length with Bucket on Ground26 ft (8 m)
Reach at Max Lift and Dump3 ft (1 m)
Wheelbase11 ft (3 m)
Width Over Tires9 ft (3 m)

Engine

AspirationTurbocharged
Displacement466 cu in (7,636 cu cm)
Engine Model6076A
Gross Power193 hp (144 kw)
Net Power185 hp (138 kw)
Number of Cylinders6
Power Measured @2200 rpm
Torque Measured @1400 rpm

Hydraulic System

Dump Time1.9 seconds
Lower Time3.5 seconds
Pump Flow Capacity66 gpm (248 lpm)
Pump TypeGear
Raise Time6.2 seconds
Relief Valve Setting2850 psi

Operating Specifications

Alternator Supplied Amperage65 amps
Cooling System Fluid Capacity8 gal (29 l)
Engine Oil Fluid Capacity6 gal (24 l)
Front Axle/Diff Fluid Capacity6 gal (23 l)
Fuel Capacity75 gal (284 l)
Hydraulic System Fluid Capacity30 gal (115 l)
Operating Voltage12 volts
Operating Weight35,306 lbs (16,015 kg)
Rear Axle Oscillation26 degrees
Rear Axle/Diff Fluid Capacity6 gal (23 l)
Static Tipping Weight29,435 lbs (13,352 kg)
Tire Size20.5-25
Transmission Fluid Capacity4 gal (13 l)
Turning Radius18 ft (5 m)

Transmission

Max Speed - Forward26 mph (41 kph)
Max Speed - Reverse16 mph (26 kph)
Number of Forward Gears4
Number of Reverse Gears3
Transmission TypePower Shift