- Dump Clearance At Max Raise: 11.08 ft / 3375 mm
- Bucket Capacity - Heaped: 4.25 yd3 / 3.3 m3
- Bucket Capacity - Struck: 3.7 yd3 / 2.8 m3
- Bucket Width: 9.52 ft / 2900 mm
Published dimensions and weight
John Deere 644H High Lift
The John Deere 644H High Lift is a wheel loader of about 17.7 t; its 6081H engine is rated at 180 hp.
01Published dimensions and weight
Dimensions reference
Measurement reference — not to scale
01Dimensions referenceLength × width × height
02Operating Weight39000 lb17690 kg
03Selected published values47
Wheel loaders are commonly used to load, carry and stockpile loose material on prepared surfaces. Published rows for John Deere 644H High Lift include published bucket capacity of 4.25 yd3 / 3.3 m3, published breakout force of 30574 lb / 136 kN, published operating weight of 39000 lb / 17690 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 (11.08 ft / 3375 mm) with the specific machine's configuration and records; options and condition can differ.
- Compare the published “Bucket Capacity - Heaped” field (4.25 yd3 / 3.3 m3) with the specific machine's configuration and records; options and condition can differ.
- Compare the published “Bucket Capacity - Struck” field (3.7 yd3 / 2.8 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 Raise11.08 ft3375 mm
Bucket Capacity - Heaped4.25 yd33.3 m3
Bucket Capacity - Struck3.7 yd32.8 m3
Bucket Width9.52 ft2900 mm
Breakout Force30574 lb136 kN
Dimensions
Ground Clearance1.52 ft461 mm
Length With Bucket On Ground28 ft8525 mm
Width Over Tires8.85 ft2697 mm
Height To Top Of Cab11.16 ft3400 mm
Wheelbase10.5 ft3200 mm
Hinge Pin - Max Height15 ft4569 mm
Reach At Max Lift And Dump3.86 ft1175 mm
Engine
Number Of Cylinders66
Engine Make22402240
Engine Model6081H6081H
Net Power180 hp134.3 kw
Gross Power205 hp153 kw
Power Measured @2200 rpm2200 rpm
Max Torque745 lb ft1010 Nm
Displacement496 cu in8.1 L
Torque Measured @1300 rpm1300 rpm
AspirationTurbocharged with AftercoolerTurbocharged with Aftercooler
Operational
Operating Weight39000 lb17690 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 Weight24798 lb11248 kg
Turning Radius18 ft5500 mm
Operating Voltage24 V24 V
Alternator Supplied Amperage55 amps55 amps
Rear Axle Oscillation26 degrees26 degrees
Tire Size20.5-2520.5-25
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 psi24821.2 kPa
Pump Flow Capacity68 gal/min257.5 L/min
Raise Time6.2 sec6.2 sec
Dump Time1.4 sec1.4 sec
Lower Time3 sec3 sec
Pump TypePiston PumpPiston Pump
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Manufacturer-published specifications.