John Deere 644H MH Wheel Loader Specs

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

Bucket

John Deere 644H MH Wheel Loader Bucket specifications
Breakout Force	34,340.00 lbs (15,576.38 kg)
Bucket Capacity - Heaped	4.5 cu yd
Bucket Capacity - Struck	3.8 cu yd
Bucket Width	9.98 ft (3.04 m)
Dump Clearance At Max Raise	9.72 ft (2.96 m)

Dimensions

John Deere 644H MH Wheel Loader Dimensions specifications
Ground Clearance	1.56 ft (0.48 m)
Height To Top Of Cab	11.20 ft (3.41 m)
Hinge Pin - Max Height	13.64 ft (4.16 m)
Length With Bucket On Ground	25.64 ft (7.82 m)
Reach At Max Lift And Dump	3.47 ft (1.06 m)
Wheelbase	10.50 ft (3.20 m)
Width Over Tires	9.43 ft (2.87 m)

Engine

John Deere 644H MH Wheel Loader Engine specifications
Aspiration	Turbocharger with Aftercooler
Displacement	496.00 cu in (8,128.00 cu cm)
Engine Make	2240
Engine Model	6081H
Gross Power	212.00 hp (158.09 kw)
Max Torque	745.00 lbs ft (1,010.07 nm)
Net Power	180.00 hp (134.23 kw)
Number Of Cylinders	6
Power Measured @	2200 rpm
Torque Measured @	1300 rpm
Torque Rise	40 %

Hydraulic System

John Deere 644H MH Wheel Loader Hydraulic System specifications
Dump Time	1.2 sec
Lower Time	3 sec
Pump Flow Capacity	74.00 gpm (280.09 lpm)
Pump Type	Piston Pump
Raise Time	6 sec
Relief Valve Setting	3600 psi

Operational

John Deere 644H MH Wheel Loader Operational specifications
Alternator Supplied Amperage	55 amps
Cooling System Fluid Capacity	7.70 gal (29.14 l)
Engine Oil Fluid Capacity	6.70 gal (25.36 l)
Front Axle/Diff Fluid Capacity	7.20 gal (27.25 l)
Fuel Capacity	90.00 gal (340.65 l)
Hydraulic System Fluid Capacity	31.00 gal (117.34 l)
Operating Voltage	24 V
Operating Weight	38,927.00 lbs (17,657.01 kg)
Rear Axle Oscillation	26 degrees
Rear Axle/Diff Fluid Capacity	7.20 gal (27.25 l)
Static Tipping Weight	30,906.00 lbs (14,018.74 kg)
Tire Size	23.5-25
Transmission Fluid Capacity	6.90 gal (26.12 l)
Turning Radius	18.10 ft (5.52 m)

Transmission

John Deere 644H MH Wheel Loader Transmission specifications
Max Speed - Forward	24.00 mph (38.62 kph)
Max Speed - Reverse	16.40 mph (26.39 kph)
Number Of Forward Gears	4
Number Of Reverse Gears	3
Transmission Type	Power Shift

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