- Dump Clearance At Max Raise: 9.72 ft / 2962 mm
- Bucket Capacity - Heaped: 4.5 yd3 / 3.4 m3
- Bucket Capacity - Struck: 3.8 yd3 / 2.9 m3
- Bucket Width: 9.98 ft / 3040 mm
Published dimensions and weight
John Deere 644H MH
The John Deere 644H MH is a 17.7 t-class wheel loader with a 180 hp engine.
01Published dimensions and weight
Dimensions reference
Measurement reference — not to scale
01Dimensions referenceLength × width × height
02Operating Weight38927 lb17657 kg
03Selected published values48
Wheel loaders are commonly used to load, carry and stockpile loose material on prepared surfaces. Published rows for John Deere 644H MH include published bucket capacity of 4.5 yd3 / 3.4 m3, published breakout force of 34340 lb / 152.76 kN, published operating weight of 38927 lb / 17657 kg. These values describe the published configuration; verify the specific machine's configuration, attachments and records.
- Compare the published “Dump Clearance At Max Raise” field (9.72 ft / 2962 mm) with the specific machine's configuration and records; options and condition can differ.
- Compare the published “Bucket Capacity - Heaped” field (4.5 yd3 / 3.4 m3) with the specific machine's configuration and records; options and condition can differ.
- Compare the published “Bucket Capacity - Struck” field (3.8 yd3 / 2.9 m3) with the specific machine's configuration and records; options and condition can differ.
02Specifications
Published values, clearly grouped.
Published specifications and measurements are organized by section for quick reference.
Bucket
Dump Clearance At Max Raise9.72 ft2962 mm
Bucket Capacity - Heaped4.5 yd33.4 m3
Bucket Capacity - Struck3.8 yd32.9 m3
Bucket Width9.98 ft3040 mm
Breakout Force34340 lb152.76 kN
Dimensions
Ground Clearance1.56 ft473 mm
Length With Bucket On Ground25.64 ft7815 mm
Width Over Tires9.43 ft2874 mm
Height To Top Of Cab11.2 ft3412 mm
Wheelbase10.5 ft3200 mm
Hinge Pin - Max Height13.64 ft4156 mm
Reach At Max Lift And Dump3.47 ft1055 mm
Engine
Number Of Cylinders66
Engine Make22402240
Engine Model6081H6081H
Net Power180 hp134 kw
Gross Power212 hp158 kw
Power Measured @2200 rpm2200 rpm
Max Torque745 lb ft1010.1 Nm
Displacement496 cu in8.1 L
Torque Measured @1300 rpm1300 rpm
AspirationTurbocharger with AftercoolerTurbocharger with Aftercooler
Torque Rise40 %40 %
Operational
Operating Weight38927 lb17657 kg
Fuel Capacity90 gal341 L
Hydraulic System Fluid Capacity31 gal117 L
Engine Oil Fluid Capacity6.7 gal25 L
Cooling System Fluid Capacity7.7 gal29 L
Transmission Fluid Capacity6.9 gal26 L
Front Axle/Diff Fluid Capacity7.2 gal27 L
Rear Axle/Diff Fluid Capacity7.2 gal27 L
Static Tipping Weight30906 lb14019 kg
Turning Radius18.1 ft5500 mm
Operating Voltage24 V24 V
Alternator Supplied Amperage55 amps55 amps
Rear Axle Oscillation26 degrees26 degrees
Tire Size23.5-2523.5-25
Transmission
Transmission TypePower ShiftPower Shift
Number Of Forward Gears44
Number Of Reverse Gears33
Max Speed - Forward24 mph39 km/h
Max Speed - Reverse16.4 mph26.7 km/h
Hydraulic System
Relief Valve Setting3600 psi24850 kPa
Pump Flow Capacity74 gal/min280 L/min
Raise Time6 sec6 sec
Dump Time1.2 sec1.2 sec
Lower Time3 sec3 sec
Pump TypePiston PumpPiston Pump
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Manufacturer-published specifications.