John Deere 720


John Deere 720 tractor photo
1956 - 1958
Two-Cylinder 20 Series
Row-Crop tractor
70
Series:620720820
730
Production
Manufacturer:John Deere
Type:Row-Crop tractor
Factory:Waterloo, Iowa, USA
Total built:22,925 (row-crop)
 4523 (standard)
Original price:$3,700 (1958 )
The John Deere model 720 was available in row-crop, standard, or high-crop versions.
Variants
720:row-crop chassis
720S:standard-tread
720HC:high-crop
John Deere 720 Power
Drawbar (claimed):53 hp
39.5 kW
PTO (claimed):59 hp
44.0 kW
Belt (claimed):50.67 hp
37.8 kW
Drawbar (tested):53.41 hp
39.8 kW
Belt (tested):57.77 hp
43.1 kW
power test details ...
John Deere 720 Engines
John Deere 5.9L 2-cyl gasoline
John Deere 5.9L 2-cyl all-fuel
John Deere 5.9L 2-cyl LP gas
John Deere 6.2L 2-cyl diesel
Fuel tank:24.5 gal
92.7 L (all-fuel)
 26.5 gal
100.3 L (gasoline)
 33 gal
124.9 L (LP gas)
 20 gal
75.7 L (diesel)
Aux. fuel:1 gal
3.8 L (all-fuel)
 0.25 gal
0.9 L (diesel)
Engine details ...
Mechanical
Chassis:4x2 2WD
Steering:manual
 power*Optional
Brakes:differential mechanical expanding shoe
Cab:Open operator station.
Transmission:6-speed unsynchronized gear
Transmission details ...
Hydraulics
Type:open center
Valves:1
Tractor hitch
Rear Type:II
Power Take-off (PTO)
Rear PTO:live
Rear RPM:540 (1.375)
Dimensions & Tires
Wheelbase:93.7 inches
237 cm
Weight:6790 lbs
3079 kg
Front tire:6.00-16
Rear tire:12-38
Full dimensions and tires ...
720 Serial Numbers
Location:Right side of tractor in front of and below pulley.
photo of 720 serial number

1956:7200000
1957:7203420
1958:7217368

how to read serial numbers...

Electrical
Ground:positive*Positive ground for the 6V and 12V systems.
 floating*The 24V electric-start diesel is not chassis grounded, with both sides of the battery system connected to the starter. The lights and gauges are split on two 12V systems.
Charging system:generator
Batteries:1 (diesel pony)
 2 (gas/LP)
 4 (diesel electric)
Battery volts:6
Page information
Last update:April 21, 2021
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