Nebraska Tractor Test Results
TEST NO. 499
Allis-Chalmers Mfg. Co., Milwaukee, Wis.
DATE TESTED: July 29 to August 10, 1953With a 226 CID, the WD45 was rated at 1400 rpm and achieved a maximum engine torque of 287.9 foot-pounds at 867 rpm. This tractor was equipped with a four-cylinder I-head engine having a 4x4-1/2 inch bore and stroke. Over 42-1/2 hours of operating time, no repairs or adjustments were noted. Standard tire equipment included 13-28 rear and 5.50-16 inch front rubber. Advertised speeds of 2-1/2, 3-3/4, 5 and 11-1/4 mph were provided - third gear was used for Test H. The bare tractor weighed 3,955 pounds, with 1,900 pounds of weight being added to each rear wheel during Tests F, G and H. Test H produced a fuel economy of 10.64 horsepower hours per gallon of gasoline. This ten-hour run was made with an output of 30.18 drawbar horsepower, a pull of 2,250 pounds at 5.03 mph, and slippage of 4.86%. Test G yielded a low-gear maximum pull of 5,441 pounds at 2.11 mph. Under a Test D rated belt load of 38.61 horsepower the WD45 achieved a fuel economy of 11.94 horsepower hours per gallon of fuel - this figure climbed to 12.34 under a Test C operating maximum load of 40.47 horsepower.
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