1971-1980

This gasoline model featured a three-cylinder, 116.1 cubic inch engine. Rated at 2,200 rpm, it used a 3.939 x 4.00 inch bore and stroke. At rated engine speed it developed 39.26 maximum PTO horsepower while delivering an economy of 10.25 horsepower hours per gallon of gasoline. At 1,000 PTO rpm and a corresponding engine speed of 2,000 rpm, an output of 37.26 PTO horsepower yielded an economy of 10.96 horsepower hours per gallon of gasoline. Twelve forward speeds ranging from 1.1 to 16.3 mph were offered in the selective gear fixed-ratio transmission. Weighing
4,020 pounds, this model was equipped with 14.9-28 rear and 6.00-16 inch front tires. Additional front and rear ballast raised the total test weight to 6,550 pounds. No repairs or adjustments were reported during 48 hours of running time. Operating in eighth gear, the two-hour economy run at 32.09 maximum available drawbar horsepower saw a pull of 2,148 pounds at 5.6 mph with slippage totaling 4.05%. Fuel economy was posted at 7.55 horsepower hours per gallon of gasoline. The ten-hour run at 75% pull indicated an economy of 7.00 horsepower hours per gallon under a load of 26.15 drawbar horsepower. Other data includes a pull of 1,666 pounds at 5.89 mph and 2.81% slippage.

Engine: David Brown

Cylinders: 3

Bore & Stroke: 3.939x4.00

RPM: 2200

CID: 146.1

Fuel: Gasoline

Main Fuel Tank Cap:

Aux Fuel Tank Cap:

Carburetor:

Cooling Capacity:

Drawbar HP: 36.56

Belt PTO HP: 39

Weight: 3800 lbs

Length: 116 inches

Width: 65 inches

Height: 51 (hood) inches

Number of Gears: 12/4

Options:

1971: 650001

1972: 651001

1973: 651227

1974: 651471

1975: 651643

1975: 651643

1976: 11000001

1977: 11005148

1978: 11011008

1979: 11015095

1980: 11019389