Overview
The CO-OP Model 1 is a row-crop farm tractor manufactured by Duplex Machinery in Battle Creek, Michigan, between 1937 and 1938. This 3,300-pound machine is equipped with a 2.2L 4-cylinder Waukesha gasoline engine and a manual steering two-wheel drive system.
Ideal Applications
Engine and Implementation Data:
The liquid-cooled Waukesha engine features a 132.7 ci displacement and is rated by the manufacturer for pulling a single 14-inch plow.
Mechanical and Transmission Configuration:
The powertrain consists of a manual gear-driven transmission and a continuous 540 RPM rear PTO, supported by a 123.9-inch frame length.
Chassis and Dimensional Variants:
The chassis provides an adjustable rear tread ranging from 44 to 80 inches and was produced in four distinct variants including tricycle and wide-front configurations.
Production
| Description | Row-Crop tractor / Built in Battle Creek, Michigan, USA / Original price was $1,000 in 1937 |
|---|---|
| Distributor | CO-OP |
| Manufacturer | Duplex Machinery |
Engine
| Engine type | Waukesha 2.2L 4-cyl gasoline |
|---|---|
| Air cleaner | oil bath |
| Bore/Stroke | 3.25x4.00 inches (83 x 102 mm) |
| Description | Waukesha / gasoline / 4-cylinder / liquid-cooled |
| Displacement | 132.7 ci (2.2 L) |
| Plows | 1 (14-inch) |
Transmission
| Description | gear |
|---|---|
| Type | gear |
Mechanical
| Cab | Open operator station. |
|---|---|
| Drive type | Two-wheel drive |
| Steering | manual |
PTO
| Rear PTO | continuous |
|---|---|
| Rear PTO Type | 540 |
Dimensions & Tires
| Ag front | 7.50x16 (single) |
|---|---|
| Ag rear | 10.00-28 / 9.00x28 |
| Height | 55 inches (139 cm) |
| Length | 123.9 inches (314 cm) |
| Rear tread | 44 to 80 inches (111 to 203 cm) |
| Shipping weight | 3300 lbs (1496 kg) |
| Width | 74.75 inches (189 cm) |
| Front tire | 7.50x16 |
| Rear tire | 10.00-28 |
| Weight | 3300 lbs (1496 kg) |
Belt Pulley
| Diameter | 16 inches (40 cm) |
|---|---|
| Width | 7 inches (17 cm) |
Variants
| 1A | three-wheel tricycle |
|---|---|
| 1C | row-crop wide-front |
| 1D | orchard wide-front |
| 2A | four-wheel tricycle |