All 44 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
Manufacturer
McCormick-Deering (a part of International Harvester)
(no label)
Agricultural Crawler tractor
(no label)
Built in Melrose Park, Illinois, USA
Engine
(no label)
International Harvester 7.6L 4-cyl diesel
Fuel tank
42 gal | 159.0 L
Aux. fuel
1.25 gal | 4.7 L
Transmission
(no label)
5-speed
Power
Drawbar (claimed)
37 hp | 27.6 kW
Belt (claimed)
48 hp | 35.8 kW
Drawbar (tested)
48.53 hp | 36.2 kW
Belt (tested)
53.46 hp | 39.9 kW
Mechanical
Drive
crawler
(no label)
Open operator station. Optional canopy or steel cab.
Pto
Rear PTO Type
535
Dimensions
Weight
12400 to 12750 pounds
(no label)
16-inch tracks
Belt pulley
Diameter
16.75 inches | 42 cm
Width
9 inches | 22 cm
RPM
591
Engine
Engine detail
(no label)
International Harvester
(no label)
diesel
(no label)
4-cylinder
(no label)
liquid-cooled vertical I-head
(no label)
The TD-40's diesel engine was started on gasoline and then switched to diesel. The engine was manually cranked from the left side, which supplied fuel to a spark-ignition combustion chamber. Exhaust gas from this chamber was directed into the cylinders of the diesel. At 700 RPMs the gasoline chamber shut down and the engine ran as a true diesel.