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John Deere A

John Deere A tractor
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The John Deere A was produced from 1934 to 1952 and was John Deere's first true row-crop tractor, replacing the GP. It was built in Waterloo, Iowa, USA, with a total production of 300,000 units. The A model was the row-crop variant and the first Deere tractor to come from the factory with rubber tires. Several variants existed including the AR (standard front axle), AO (orchard), AOS (narrow orchard), AW (adjustable wide-front), AN (single front wheel), AWH (high-crop adjustable wide-front), and ANH (high-crop single front wheel). It featured a John Deere 5.1L 2-cylinder liquid-cooled horizontal engine with 18 hp drawbar power and a 4-speed unsynchronized gear transmission. The tractor had a rear PTO with 540 rpm and weighed 3783 lbs (1715 kg).
John Deere Atractorspecificationsenginetransmissionpowerdimensionsvariantsrow-crop tractor
Power26 hp[P]
Founded1934 - 1952
ModelA

Technical Specifications

Detailed specifications and technical data for John Deere A

Power

Plows:2 14-inch
PTO (tested):23.63 hp (17.6 kW)
Belt (tested):24.71 hp (18.4 kW)
Belt (claimed):24 hp (17.9 kW)
Drawbar (tested):18.72 hp (14.0 kW)
Drawbar (claimed):18 hp (13.4 kW)

Tires

Ag rear:50x6 steel
Ag front:24x4 steel
Ag rear (alt):9/10/11.25x36
Ag front (alt):5.50x16

Engine

Cooling:liquid-cooled horizontal
Aux. fuel:1 gal (3.8 L)
Cylinders:2-cylinder 4-valve
Fuel tank:14 gal (53.0 L)
Fuel type:all fuel
Point gap:0.021 inches (0.533 mm)
Rated RPM:975
Air cleaner:oil bath
Bore/Stroke:5.50x6.50 inches (140 x 165 mm)
Displacement:309 ci (5.1 L)
Firing order:1-2
Manufacturer:John Deere
Oil capacity:9.25 qts (8.8 L)
Starter type:manual (Hand-crank of tractor flywheel)
Engine Detail:John Deere 5.1L 2-cyl all fuel
Sparkplug gap:.030 inches (0.762 mm)
Coolant capacity:38 qts (36.0 L)
Compression ratio:4.45:1
Intake valve clearance:0.020 inches Hot (0.508 mm)
Exhaust valve clearance:0.020 inches Hot (0.508 mm)

Variants

A:Row-crop
AN:Single front wheel
AO:Orchard
AR:Standard front axle
AW:Adjustable wide-front
ANH:High-crop, single-front wheel
AOS:narrow orchard
AWH:High-crop, adjustable wide-front

Dimensions

Width:83 inches (210 cm)
Height:60 inches (152 cm)
Length:124 inches (314 cm)
Weight:3783 lbs (1715 kg)
Width (alt):86.325 inches (219 cm)
Height (alt):63.875 inches (162 cm)

Mechanical

Drive:Two-wheel drive
Brakes:Differential mechanical expanding shoe brakes
Steering:Manual steering
Operator station:Open operator station with steel pan seat

Production

Type:Row-Crop tractor
Built in:Waterloo, Iowa, USA
Description:The A was John Deere's first true row-crop tractor, replacing the GP. There were several variants of the A. The A was the row-crop model. The AR was a standard (or fixed) tread model. The AO was an orchard model, with no exhaust stack and shielded fenders. There was also the AI industrial model, the AN with narrow front, the AW wide front, and the high-crop ANH and AWH. The model A was the first Deere tractor to come from the factory with rubber tires.
Total built:300,000
Manufacturer:John Deere
Years produced:1934 - 1952

Transmission

Type:unsynchronized gear
Gears:4 forward and 1 reverse
Clutch:dry disc
Manufacturer:John Deere

Serial Numbers

1934:410000
1935:412866
1936:424025
1937:442151
1938:466787
1939:477000
1940:488000
1941:499000
1942:510239
1943:520004
1944:524423
1945:542700
1946:555334
1947:569610
1948:587349
1949:611921
1950:640246
1951:666307
1952:682602
Final:703384

Power Take-off (PTO)

Rear PTO:transmission
Rear PTO Type:540

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