Tractors > John Deere > 644A

John Deere 644A



John Deere 644A tractor photo
1971 - 1973
Wheel Loader
Series map:
644A
141.0hp
Production
ManufacturerJohn Deere
Wheel Loader
John Deere 644A Engine
John Deere 6.6L 6-cyl diesel
Fuel tank50 gal
189.2 L
Engine details ...
John Deere 644A Transmission
4-speed power shift
Transmission details ...
John Deere 644A Power
Engine (gross)141 hp
105.1 kW
Engine (net)131 hp
97.7 kW
Mechanical
Four-wheel drive
Final drivesinboard planetary
Articulated power steering
Hydraulic wet disc brakes
Cab standard with heat.
Photos
No photos of the John Deere 644A are currently available. To submit yours, email it to Peter@TractorData.com. Photos may only be used with the permission of the original photographer.
Hydraulics
Typeopen center
Pressure2250 psi
155.1 bar
Pump flow60 gpm
227.1 lpm
Steering flow27 gpm
102.2 lpm
Steering press.2000 psi
137.9 bar
Dimensions & Tires
Wheelbase104 inches
264 cm
Weight26472 lbs
12007 kg
Front tire20.5-25
Rear tire20.5-25
Full dimensions and tires ...
John Deere 644A attachments
front-end loader
Attachment details ...
Electrical
Charging systemalternator
Batteries2
Battery volts12
References
644A references literature
Construction Purchasing Guide published in 1973, by John Deere
Page information
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Updated on September 9, 2021
http://techpubs.deere.com/ - Official operator manuals for purchase or download from Deere.
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