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John Deere 644D Wheel Loader

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General Specifications

Bucket

Breakout Force24,430 lbs (11,081 kg)
Bucket Capacity - heaped3 cu yd (2 cu m)
Bucket Capacity - struck3 cu yd (2 cu m)
Bucket Width9 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 Ground23 ft (7 m)
Reach at Max Lift and Dump3 ft (1 m)
Wheelbase10 ft (3 m)
Width Over Tires9 ft (3 m)

Engine

AspirationTurbocharged
Displacement466 cu in (7,636 cu cm)
Engine Model6-466T
Gross Power165 hp (123 kw)
Net Power155 hp (116 kw)
Number of Cylinders6
Power Measured @2200 rpm
Torque Measured @1400 rpm

Hydraulic System

Dump Time2 seconds
Lower Time4.3 seconds
Pump Flow Capacity63 gpm (238 lpm)
Pump TypeGear type pump
Raise Time6.1 seconds
Relief Valve Setting2625 psi

Operating Specifications

Alternator Supplied Amperage42 amps
Cooling System Fluid Capacity7 gal (28 l)
Engine Oil Fluid Capacity5 gal (19 l)
Front Axle/Diff Fluid Capacity6 gal (23 l)
Fuel Capacity67 gal (254 l)
Hydraulic System Fluid Capacity25 gal (95 l)
Operating Voltage12 volts
Operating Weight29,320 lbs (13,299 kg)
Rear Axle Oscillation22 degrees
Rear Axle/Diff Fluid Capacity6 gal (23 l)
Static Tipping Weight25,210 lbs (11,435 kg)
Tire Size20.5-25
Transmission Fluid Capacity10 gal (37 l)
Turning Radius17 ft (5 m)

Transmission

Max Speed - Forward27 mph (44 kph)
Max Speed - Reverse8 mph (13 kph)
Number of Forward Gears4
Number of Reverse Gears2
Transmission TypePower shift planetary

  • John Deere 644Ds currently for sale
  • A 1987 John Deere 644D From Brookside Equipment Sales for $19,500.00 USD