John Deere 520

The John Deere 520 is a tractor produced by John Deere. It is equipped with a 189.8 ci 3.1 L engine. The rated power output is 37.52 hp 28.0 kW. Transmission: 6 forward and 1 reverse. Operating weight: 4,960 lbs 2249 kg.

Overview

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

Production
Manufacturer	John Deere
Row-Crop tractor
Built in Waterloo, Iowa, USA
Total built	13,048 (total)
	12,040 (gasoline)
	764 (LP-gas)
	244 (all-fuel)
Original price	$2,300 (1958)

John Deere 520 Transmission
6-speed unsynchronized gear
Transmission details ...

John Deere 520 Power
Plows	3 *14-inch
Drawbar (tested)	33.30 hp 24.8 kW
Belt (tested)	37.52 hp 28.0 kW
Performance test details ...

Mechanical
Two-wheel drive
Steering	manual
	power optional
Differential mechanical expanding shoe brakes
Open operator station.

Capacity
Fuel	15.5 gal (all-fuel) 58.7 L
	18 gal (gasoline) 68.1 L
	33 gal (LP gas) 124.9 L
Aux. fuel	2 gal 7.6 L
Hydraulic system	2.5 gal 9.5 L

Hydraulics
Capacity	2.5 gal 9.5 L

Tractor hitch
Rear Type	II OptOptional

Power Take-off (PTO)
Rear PTO	independent
Rear PTO Type	540

Dimensions & Tires
Wheelbase	90 inches 228 cm
Weight	4,960 lbs 2249 kg
Front tire	5.50-16
Rear tire	12.4-36
Full dimensions and tires ...

Electrical
Ground	positive
Batteries	2
Battery volts	6

References
The John Deere 20 series Two Cylinder Tractors by Benjamin Hain
Operator's Manual 3150 (OML57483) published in 1985
Operator's Manual 520 (OM-R2074R) published in 1957
Tractors 1918-1976 published by John Deere*
The 1957 John Deere Tractors are here!
Facts About John Deere Tractor Wholesale Prices 1935-1961
Facts about horsepower and fuel economy published in 1957, by John Deere
*Publication contains known errors.

Engine

Engine options
John Deere 3.1L 2-cyl gasoline
John Deere 3.1L 2-cyl all-fuel
John Deere 3.1L 2-cyl LP gas

Engine Detail — 189.8 ci / 3.1 L Gasoline

Manufacturer	John Deere
Fuel Type	Gasoline
Configuration	2-cylinder 4-valve, liquid-cooled
Displacement	189.8 ci 3.1 L
Bore/Stroke	4.6875x5.50 inches 119 x 140 mm
Air cleaner	oil bath
Compression	7:1
Rated RPM	1325
Firing order	1-2
Starter volts	12
Oil capacity	7 qts 6.6 L
Coolant capacity	18 qts 17.0 L
Sparkplug gap	0.030 inches 0.762 mm
Point gap	0.022 inches 0.559 mm

Engine Detail — 189.8 ci / 3.1 L

Manufacturer	John Deere
Configuration	2-cylinder 4-valve, liquid-cooled
all-fuel
Displacement	189.8 ci 3.1 L
Bore/Stroke	4.6875x5.50 inches 119 x 140 mm
Air cleaner	oil bath
Rated RPM	1325
Firing order	1-2
Starter volts	12
Oil capacity	7 qts 6.6 L
Sparkplug gap	0.030 inches 0.762 mm
Point gap	0.022 inches 0.559 mm

Engine Detail — 189.8 ci / 3.1 L LP Gas

Manufacturer	John Deere
Fuel Type	LP gas
Configuration	2-cylinder 4-valve, liquid-cooled
Displacement	189.8 ci 3.1 L
Bore/Stroke	4.6875x5.50 inches 119 x 140 mm
Rated RPM	1325
Firing order	1-2
Starter volts	12

Transmission

Transmission — 6 forward and 1 reverse unsynchronized gear

Manufacturer	John Deere
Type	unsynchronized gear
Gears	6 forward and 1 reverse
Clutch	dry disc

Dimensions

John Deere 520 Tires
Ag front	5.50-16
Ag rear	12.4-36

Dimensions
Wheelbase	90 inches 228 cm
Length	132.75 inches 337 cm
Width	86.625 inches 220 cm
Height	83.325 inches 211 cm
Weight	4,960 lbs 2249 kg
Ballasted weight	6,600 lbs 2993 kg
Ground clearance	24.75 inches 62 cm

Tests

Tractor Tests
NTTL 590: LP gas 6-speed 2WD
NTTL 592: tractor fuel 6-speed 2WD
NTTL 597: gasoline 6-speed 2WD

Nebraska Tractor Test 590
LP gas 6-speed 2WD September 5 - 11, 1956 Link: Nebraska Tractor Test 590 file
Belt power (max)	37.24 hp 27.8 kW
Belt fuel use (max)	3.9 gal/hour 14.8 l/hour
Drawbar performance
Max power	33.30 hp 24.8 kW
Gear 4 used for power test.
Max pull	4,659 lbs 2113 kg
Gear 1 used for pull test.

Nebraska Tractor Test 592
Tractor fuel 6-speed 2WD September 13 - 17, 1956 Link: Nebraska Tractor Test 592 file
Belt power (max)	25.41 hp 18.9 kW
Belt fuel use (max)	2.5 gal/hour 9.5 l/hour
Drawbar performance
Max power	23.98 hp 17.9 kW
Gear 3 used for power test.
Max pull	4,660 lbs 2113 kg
Gear 1 used for pull test.

Nebraska Tractor Test 597
Gasoline 6-speed 2WD October 61956, - October 10, 1956 Link: Nebraska Tractor Test 597 file
Belt power (max)	37.52 hp 28.0 kW
Belt fuel use (max)	3.3 gal/hour 12.5 l/hour
Drawbar performance
Max power	33.27 hp 24.8 kW
Gear 4 used for power test.
Max pull	4,723 lbs 2142 kg
Gear 2 used for pull test.