John Deere A: all source data

All 56 values recorded for this model, as the source lists them and in its units. The spec sheet shows the same data checked, typed and converted.

Overview

Production
ManufacturerJohn Deere
(no label)Row-Crop tractor
(no label)Built in Waterloo, Iowa, USA
Total built300,000
(no label)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.
Engine
(no label)John Deere 5.1L 2-cyl all fuel
Fuel tank14 gal | 53.0 L
Aux. fuel1 gal | 3.8 L
Transmission
(no label)4-speed unsynchronized gear
Power
Drawbar (claimed)18 hp | 13.4 kW
Belt (claimed)24 hp | 17.9 kW
Plows2
Drawbar (tested)18.72 hp | 14.0 kW
PTO (tested)23.63 hp | 17.6 kW
Belt (tested)24.71 hp | 18.4 kW
Mechanical
(no label)Two-wheel drive
(no label)Manual steering
(no label)Differential mechanical expanding shoe brakes
(no label)Open operator station with steel pan seat.
Pto
Rear PTOtransmission
Rear PTO Type540
Dimensions
Weight3783 lbs | 1715 kg
Front tire24x4
Rear tire50x6
Serial location
(no label)Serial number plate on the left side of tractor, above the flywheel.

Engine

Engine detail
(no label)John Deere
(no label)all fuel
(no label)2-cylinder 4-valve
(no label)liquid-cooled horizontal
Displacement309 ci | 5.1 L
Bore/Stroke5.50x6.50 inches | 140 x 165 mm
Air cleaneroil bath
Compression4.45:1
Rated RPM975
Firing order1-2
Starter typemanual
Oil capacity9.25 qts | 8.8 L
Coolant capacity (Coolant)38 qts | 36.0 L
Sparkplug gap.030 inches | 0.762 mm
Point gap0.021 inches | 0.533 mm
Intake valve clearance0.020 inches | 0.508 mm
Exhaust valve clearance0.020 inches | 0.508 mm

Transmission

Transmission
ManufacturerJohn Deere
Typeunsynchronized gear
Gears4 forward and 1 reverse
Clutchdry disc

Dimensions

Tires
Ag front24x4 steel
Ag rear50x6 steel
Ag front5.50x16
Ag rear9/10/11.25x36
Dimensions
Length124 inches | 314 cm
Width83 inches | 210 cm
Width86.325 inches | 219 cm
Height60 inches | 152 cm
Height63.875 inches | 162 cm
Weight3783 lbs | 1715 kg