Tractors > John Deere > 644B

John Deere 644B

1974 - 1980

Wheel Loader

Series map:

644C↑ 1981-1984

544B

644B

115.0hp

160.0hp

644A↓ 1971-1973

Production
Manufacturer	John Deere
Wheel Loader

John Deere 644B Engine
John Deere 8.7L 6-cyl diesel
Fuel tank	56 gal 212.0 L
Engine details ...

John Deere 644B Transmission
4-speed power shift
Transmission details ...

John Deere 644B Power
Engine (gross)	160 hp 119.3 kW
Engine (net)	145 hp 108.1 kW

Mechanical
Four-wheel drive
Final drives	inboard planetary
Articulated power steering
Hydraulic wet disc brakes
Four-post ROPS with canopy. Cab optional.

Photos
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Hydraulics
Type	open center
Pressure	2250 psi 155.1 bar
Pump flow	62.5 gpm 236.6 lpm
Steering flow	26.5 gpm 100.3 lpm
Steering press.	2350 psi 162.0 bar

Dimensions & Tires
Wheelbase	104 inches 264 cm
Weight	28100 lbs 12746 kg
Front tire	20.5-25
Rear tire	20.5-25
Full dimensions and tires ...

John Deere 644B attachments
front-end loader
Attachment details ...

Electrical
Charging system	alternator
Batteries	2
Battery volts	12

References

Construction Purchasing Guide published in 1974, by John Deere
Industrial Equipment Division published in 1980, 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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