720 by Deere

1956 - 1958

1956 - 1958 Two-Cylinder 20 SeriesRow-Crop tractor

Production

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

Variants 720:row-crop chassis
720S:standard-tread
720HC:high-crop

1956 - 1958

1956 - 1958
Two-Cylinder 20 Series
Row-Crop tractor

Production

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

Variants
720:row-crop chassis
720S:standard-tread
720HC:high-crop

John Deere 720 Power

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 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

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

Hydraulics
Type:open center
Valves:1

Tractor hitch

Tractor hitch
Rear Type:II

Power Take-off (PTO)

Power Take-off (PTO)
Rear PTO:live
Rear RPM:540 (1.375)

Dimensions & Tires

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 ...

John Deere 720 attachments

John Deere 720 attachments
front-end loader
Attachment details ...

720 Serial Numbers

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

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

John Deere 720 Power

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 ...

1956 - 1958

1956 - 1958
Two-Cylinder 20 Series
Row-Crop tractor

Nebraska Tractor Test 593

Nebraska Tractor Test 593

Nebraska Tractor Test 593

Nebraska Tractor Test 593
LP gas 6-speed 2WD
September 17 - 19, 1956
Link: Nebraska Tractor Test 593 file
Belt power (max):57.33 hp
42.8 kW
Belt fuel use (max):6.3 gal/hour
23.8 l/hour
Drawbar performance
Max power:52.38 hp
39.1 kW
Gear 4 used for power test.
Max pull:6,697 lbs
3037 kg
Gear 1 used for pull test.

Nebraska Tractor Test 594

Nebraska Tractor Test 594

Nebraska Tractor Test 594

Nebraska Tractor Test 594
Diesel 6-speed 2WD
September 18 - 22, 1956
Link: Nebraska Tractor Test 594 file
Belt power (max):56.66 hp
42.3 kW
Belt fuel use (max):3.2 gal/hour
12.1 l/hour
Drawbar performance
Max power:51.83 hp
38.6 kW
Gear 4 used for power test.
Max pull:6,547 lbs
2969 kg
Gear 1 used for pull test.

Nebraska Tractor Test 605

Nebraska Tractor Test 605

Nebraska Tractor Test 605

Nebraska Tractor Test 605
Gasoline 6-speed 2WD
November 6 - 12, 1956
Link: Nebraska Tractor Test 605 file
Belt power (max):57.77 hp
43.1 kW
Belt fuel use (max):5.2 gal/hour
19.7 l/hour
Drawbar performance
Max power:53.41 hp
39.8 kW
Gear 4 used for power test.
Max pull:6,647 lbs
3015 kg
Gear 1 used for pull test.

Nebraska Tractor Test 606

Nebraska Tractor Test 606

Nebraska Tractor Test 606

Nebraska Tractor Test 606
Tractor fuel 6-speed 2WD
November 12 - 19, 1956
Link: Nebraska Tractor Test 606 file
Belt power (max):44.13 hp
32.9 kW
Belt fuel use (max):4.4 gal/hour
16.7 l/hour
Drawbar performance
Max power:40.78 hp
30.4 kW
Gear 4 used for power test.
Max pull:6,608 lbs
2997 kg
Gear 1 used for pull test.

John Deere 720 Engines

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 ...

1956 - 1958

1956 - 1958
Two-Cylinder 20 Series
Row-Crop tractor

Engines overview

Engines overview
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

Engine Detail

Engine Detail
John Deere
gasoline
2-cylinder 4-valve
liquid-cooled
Displacement:360.5 ci
5.9 L
Bore/Stroke:6.00x6.375 inches
152 x 162 mm
Air cleaner:oil bath
Compression:6.14:1
Rated RPM:1125
Firing order:1-2
Starter type:electric
Coolant capacity:29 qts
27.4 L

Engine Detail

Engine Detail
John Deere
all-fuel
2-cylinder 4-valve
liquid-cooled
Displacement:360.5 ci
5.9 L
Bore/Stroke:6.00x6.375 inches
152 x 162 mm
Air cleaner:oil bath
Compression:4.91:1
Rated RPM:1125
Firing order:1-2
Starter type:electric

Engine Detail

Engine Detail
John Deere
LP gas
2-cylinder 4-valve
liquid-cooled
Displacement:360.5 ci
5.9 L
Bore/Stroke:6.00x6.375 inches
152 x 162 mm
Air cleaner:oil bath
Compression:7.94:1
Rated RPM:1125
Firing order:1-2
Starter:electric
Starter volts:12

Engine Detail

Engine Detail
John Deere
diesel
2-cylinder 4-valve
liquid-cooled
Displacement:376 ci
6.2 L
Bore/Stroke:6.125x6.375 inches
156 x 162 mm
Compression:16:1
Rated RPM:1125
Firing order:1-2
Starter:pony motor*Four-cylinder 6V electric-start gasoline pony power used to warm and start the diesel engine.
 electric*Electric start became available as an option on the 720 Diesel in 1958.
Starter volts:6 (diesel pony)
 24 (diesel electric)

Mechanical

Mechanical Chassis:4x2 2WD
Steering:manual
 power*Optional
Brakes:differential mechanical expanding shoe
Cab:Open operator station.
Transmission:6-speed unsynchronized gear
Transmission details ...

1956 - 1958

1956 - 1958
Two-Cylinder 20 Series
Row-Crop tractor

Transmission

Transmission
Manufacturer:John Deere
Type:unsynchronized gear
Gears:6 forward and 1 reverse
Clutch:dry
Oil capacity:30 qts
28.4 L
Oil type:
0oF [-17oC]↑ : SAE 90
0oF [-17oC]↓ : SAE 80

0oF [-17oC] ↑

0oF [-17oC]↑ : SAE 90
0oF [-17oC]↓ : SAE 80

Speeds

Speeds
With 13.6-38 rear tires.

Hydraulics

Hydraulics Type:open center
Valves:1

Tractor hitch

Tractor hitch Rear Type:II

Power Take-off (PTO)

Power Take-off (PTO) Rear PTO:live
Rear RPM:540 (1.375)

Dimensions & Tires

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 ...

1956 - 1958

1956 - 1958
Two-Cylinder 20 Series
Row-Crop tractor

John Deere 720 Tires

John Deere 720 Tires
Ag front:6.00-16
Ag rear:12-38

Dimensions

Dimensions
Wheelbase:93.7 inches
237 cm
Length:135.25 inches
343 cm
Width:86.625 inches
220 cm
Height:88.25 inches
224 cm
Weight:6790 lbs
3079 kg

John Deere 720 attachments

John Deere 720 attachments front-end loader Attachment details ...

1956 - 1958

1956 - 1958
Two-Cylinder 20 Series
Row-Crop tractor

John Deere 45 Loader

John Deere 45 Loader
Height (to pin):126 inches
320 cm
Lift to full height (at pin):2000 lbs
907 kg

720 Serial Numbers

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

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

720 relate tractors