Categories ↠ Wheel Loaders ↠ John Deere 644H MH

John Deere 644H MH Wheel Loader

Category: Wheel Loaders ➔
Manufacturer: John Deere ➔
Model: 644H MH ➔

General Specifications

Bucket

Breakout Force	34,340 lbs (15,576 kg)
Bucket Capacity - heaped	5 cu yd (3 cu m)
Bucket Capacity - struck	4 cu yd (3 cu m)
Bucket Width	10 ft (3 m)
Dump Clearance at Max Raise	10 ft (3 m)

Dimensions

Ground Clearance	2 ft (0 m)
Height - Top of Cab	11 ft (3 m)
Hinge Pin - Max Height	14 ft (4 m)
Length with Bucket on Ground	26 ft (8 m)
Reach at Max Lift and Dump	4 ft (1 m)
Wheelbase	11 ft (3 m)
Width Over Tires	10 ft (3 m)

Engine

Aspiration	Turbocharger with Aftercooler
Displacement	496 cu in (8,128 cu cm)
Engine Model	6081H
Gross Power	212 hp (158 kw)
Net Power	180 hp (134 kw)
Number of Cylinders	6
Power Measured @	2200 rpm
Torque Measured @	1300 rpm
Torque Rise	40%

Hydraulic System

Dump Time	1.2 seconds
Lower Time	3 seconds
Pump Flow Capacity	74 gpm (280 lpm)
Pump Type	Piston Pump
Raise Time	6 seconds
Relief Valve Setting	3600 psi

Operating Specifications

Alternator Supplied Amperage	55 amps
Cooling System Fluid Capacity	8 gal (29 l)
Engine Oil Fluid Capacity	7 gal (25 l)
Front Axle/Diff Fluid Capacity	7 gal (27 l)
Fuel Capacity	90 gal (341 l)
Hydraulic System Fluid Capacity	31 gal (117 l)
Operating Voltage	24 volts
Operating Weight	38,927 lbs (17,657 kg)
Rear Axle Oscillation	26 degrees
Rear Axle/Diff Fluid Capacity	7 gal (27 l)
Static Tipping Weight	30,906 lbs (14,019 kg)
Tire Size	23.5-25
Transmission Fluid Capacity	7 gal (26 l)
Turning Radius	18 ft (6 m)

Transmission

Max Speed - Forward	24 mph (39 kph)
Max Speed - Reverse	16 mph (26 kph)
Number of Forward Gears	4
Number of Reverse Gears	3
Transmission Type	Power Shift

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