caterpillar d2
 | 1938 - 1957
Agricultural Crawler tractor | 1938 - 1957 | Agricultural Crawler tractor |
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1938 - 1957 | |||
Agricultural Crawler tractor | |||
1938 - 1957 | |
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Agricultural Crawler tractor |
Tractor Tests | |
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NTTL 322: 251 diesel 5-speed crawler | |
NTTL 418: 252 diesel 5-speed crawler | |
NTTL 553: 252 diesel 5-speed crawler |
Nebraska Tractor Test 322 | ||
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Nebraska Tractor Test 322 | |
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251 diesel 5-speed crawler
July 24 - August 4, 1939
Link: Nebraska Tractor Test 322 file | |
Belt power (max) | 30 hp
22.4 kW |
PTO performance | |
Power at rated engine speed | 27.5 hp
20.5 kW |
Fuel use | 2.1 gal/hour
7.9 l/hour |
Drawbar performance | |
Max power | 25.2 hp
18.8 kW |
Gear 1 used for power test. | |
Max pull | 5,903 lbs
2677 kg |
Nebraska Tractor Test 418 | ||
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Nebraska Tractor Test 418 | |
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252 diesel 5-speed crawler
July 11 - 26, 1949
Link: Nebraska Tractor Test 418 file | |
Belt power (max) | 36.02 hp
26.9 kW |
PTO performance | |
Power at rated engine speed | 32.9 hp
24.5 kW |
Fuel use | 2.4 gal/hour
9.1 l/hour |
Drawbar performance | |
Max power | 30.31 hp
22.6 kW |
Gear 2 used for power test. | |
Max pull | 6,778 lbs
3074 kg |
Gear 1 used for pull test. | |
Nebraska Tractor Test 553 | ||
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Nebraska Tractor Test 553 | |
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252 diesel 5-speed crawler
July 25 - 30, 1955
Link: Nebraska Tractor Test 553 file | |
Belt power (max) | 41.86 hp
31.2 kW |
PTO performance | |
Power at rated engine speed | 29 hp
21.6 kW |
Fuel use | 2.7 gal/hour
10.2 l/hour |
Drawbar performance | |
Max power | 36.62 hp
27.3 kW |
Gear 2 used for power test. | |
Max pull | 7,413 lbs
3362 kg |
Gear 1 used for pull test. | |