caterpillar rd4

Caterpillar RD4 tractor photo
1935 - 1940 Agricultural Crawler tractor
1935 - 1940
Agricultural Crawler tractor
1935 - 1940
Agricultural Crawler tractor
1935 - 1940
Agricultural Crawler tractor
Nebraska Tractor Test 273
RD4 fuel use from test 273
RD4 fuel use from test 273
RD4 fuel use from test 273
RD4 fuel use from test 273
Nebraska Tractor Test 273
Diesel 5-speed crawler October 14 - 28, 1936 Link: Nebraska Tractor Test 273 file
Belt power (max)
39.82 hp 29.7 kW
Belt fuel use (max)
2.9 gal/hour 11.0 l/hour
Drawbar performance
Max power
35.06 hp 26.1 kW
Gear 2 used for power test.
Max pull
7852 lbs 3561 kg
Gear 1 used for pull test.