Case 20-40 Tractor (1912-1919)

Manufacturer:Case

Price:2,100(USD)

Series:

Model:20-40

Equipment Type: Standard-Tread Tractors

Factory:Racine, Wisconsin, USA

Full Specifications

NEBRASKA TRACTOR TEST 7

Description
1082ci kerosene 2-speed 2WD/April 10 - May 7, 1920/Link: Nebraska Tractor Test 7 file/Drawbar performance
Belt power (max)
42.80 hp/31.9 kW
Belt fuel use (max)
7.7 gal/hour/29.1 l/hour
Max power
24.66 hp/18.4 kW
Max pull
5,537 lbs/2511 kg

J.I. CASE 20-40 POWER

Drawbar (claimed)
20 hp/14.9 kW
Belt (claimed)
40 hp/29.8 kW
Drawbar (tested)
24.66 hp/18.4 kW
Belt (tested)
42.80 hp/31.9 kW

ENGINES OVERVIEW

Description
J.I. Case 12.4L 2-cyl kerosene/J.I. Case 14.8L 2-cyl kerosene/J.I. Case 17.7L 2-cyl kerosene

ENGINE DETAIL 1

Description
J.I. Case/kerosene/2-cylinder/liquid-cooled opposed-twin/The original engine, was used on the first model 40 tractors produced in 1912.
Displacement
755 ci/12.4 L
Bore/Stroke
7.75x8.00 inches/197 x 203 mm
Rated RPM
450
Starter type
hand-crank

ENGINE DETAIL 2

Description
J.I. Case/kerosene/2-cylinder/liquid-cooled opposed-twin/The 8-inch bore engine replaced the original engine early in production, at the end of 1912.
Displacement
904 ci/14.8 L
Bore/Stroke
8.00x9.00 inches/203 x 229 mm
Rated RPM
475
Starter type
hand-crank
Coolant capacity
112 qts/106.0 L

ENGINE DETAIL 3

Description
J.I. Case/kerosene/2-cylinder/liquid-cooled/The final, 8.75-inch bore, engine replaced the 8-inch around 1916. Case did not re-rate the horsepower of the tractor, despite a 20% increase in displacement.
Displacement
1082 ci/17.7 L
Bore/Stroke
8.75x9.00 inches/222 x 229 mm
Rated RPM
475
Starter type
hand-crank

J.I. CASE 20-40 ENGINES

Description
J.I. Case 12.4L 2-cyl kerosene/J.I. Case 14.8L 2-cyl kerosene/J.I. Case 17.7L 2-cyl kerosene
Fuel tank
42 gal/159.0 L

TRANSMISSION

Transmission
J.I. Case
Type
gear
Gears
2 forward and 1 reverse

SPEEDS

Description

MECHANICAL

Chassis
4x2 2WD
Steering
manual
Cab
Open operator station. Optional four-post steel cab.
Transmission
2-speed gear

J.I. CASE 20-40 TIRES

Ag front
38x8 steel
Ag rear
66x20 steel

DIMENSIONS

Length
177 inches/449 cm
Width
100 inches/254 cm
Height
107 inches/271 cm
Operating weight
13,900 lbs/6305 kg
Rear axle
3.94 inch diameter/100 mm

DIMENSIONS & TIRES

Weight
13,900 lbs/6305 kg
Front tire
38x8
Rear tire
66x20

20-40 SERIAL NUMBERS

Location
Serial number plate on left side of tractor frame, above the front axle.

BELT PULLEY

Diameter
24 inches/60 cm
Width
8.5 inches/21 cm

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