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    • Allis-Chalmers crawlers

    • Allis-Chalmers crawlers

    • Farm tractors; Tractors; Allis-Chalmers tractors; Allis-Chalmers Manufacturing Company; Crawler tractors

    • "1940. Tractors arriving for test" Unloading tractors for tests 360, 361, and 362. Allis-Chalmers crawlers HD-7W, HD-10W, and HD-14 are being driven down a wooden ramp as they are unloaded from a box car on a special railroad siding.
    • Larsen Tractor Museum Collection
    • Oliver Row Crop 88 HC Test #388, 1947

    • Oliver Row Crop 88 HC Test #388, 1947

    • Farm tractors--Testing; Oliver tractors; Oliver Corporation; Burns, Pete; Dommel, Homer

    • "1947. Drawbar test of Oliver Row Crop 88HC. Test no. 388. Pete Burns & Homer Dommel are the company representatives. Pete Burns in the driver's seat. Homer Dommel (Oliver Rep)mis standing near the tractor's rear tire. The Adams test car and the...
    • Larsen Tractor Museum Collection
    • First tractor test after World War II

    • First tractor test after World War II

    • Tractors--Testing; Garden tractors; Larsen, Lester F., 1908-2000; Larsen, Danny; Powell, Lou; Arms, Milo; Sabe, Abou; Furst, Bob; Heller, Ray

    • "1946. First tractor tested following World War II. Test no. 379. L.F. Larsen, Danny Larsen, Lou Powell, Milo Arms, Abou Sabe, Bob Furst, Ray Heller." Group photo of men and a boy gathered around an Ellinwood 3000-1 Bear Cat. The Adams tractor...
    • Larsen Tractor Museum Collection
    • Carlton Zink

    • Carlton Zink

    • Farm tractors--Testing; Equipment

    • "Carlton Zink showing belt test equipment to a visitor from Cuba." He is pointing to the weight scale part of the Belt Dynamometer Cradle. The scale is used to determine the Torque (and Horsepower by calculation) from the tractor belt drive or PTO...
    • Larsen Tractor Museum Collection
    • John Deere LA, Test 373, 1941.

    • John Deere LA, Test 373, 1941.

    • Farm tractors--Testing; John Deere tractors; Deere & Company

    • Official belt test no. 373 of the John Deere LA in 1941 The John Deere is driving the dynamometer which is located in the room seen to the left in the photograph. The Director, Carlton Zink, is showing test data to a technician and another...
    • Larsen Tractor Museum Collection
    • Weighing oil

    • Weighing oil

    • Farm tractors--Testing; Scales

    • 1940. Oil used during test is weighed. Before the test oil is drained from the tractor. New oil is weighed and put in the tractor. After the tests the oil is drained and weighed again. The difference is the oil used during the test. The photograph...
    • Larsen Tractor Museum Collection
    • New models, Gibson H & I

    • New models, Gibson H & I

    • Farm tractors; Gibson tractors; Gibson Manufacturing Company; Smith, C.W.; Warner, Charles J., 1875-1955; Hurlbut, L.W.

    • "1948. New models Gibson H & I Tractors. C.W. Smith (Faculty Member of Ag. Eng.) Chas. Warner (State Senator). L.W. Hurlbut (Department Head of Ag. Eng.)) are standing between the Gibson tractors, which are parked west of the old Tractor Test...
    • Larsen Tractor Museum Collection
    • Allis-Chalmers 7580. Drawbar Test

    • Allis-Chalmers 7580. Drawbar Test

    • Farm tractors--Testing; Allis-Chalmers tractors; Allis-Chalmers Manufacturing Company

    • Allis-Chalmers 7580 during a drawbar test. The three tractors behind the Allis Chalmers are "load units" or "load tractors" which help generate resistance on the drawbar. The 7580 was the tallest tractor to be tested until that time and a new...
    • Larsen Tractor Museum Collection
    • Ford tractor

    • Ford tractor

    • Farm tractors--Testing; Ford tractors; Ford Motor Company

    • Ford tractor with a Two-post roll bar during a drawbar test. The Oliver test car, which was used from the 60-s till well into the 90-s (and is still used occasionally) had the Adams test cab on it which contained the test measurement equipment. The...
    • Larsen Tractor Museum Collection
    • Case tractors after completing test.

    • Case tractors after completing test.

    • Farm tractors; Farm tractors--Testing; Case tractors; Case Corporation

    • The Case tractors from tests 1328, 1329, and 1330 are shown outside the tractor test lab. The Case 4490 is shown from the side, and only the front of the tractor from test 1330 is visible beyond it. The tractor from test 1329 is shown from the...
    • Larsen Tractor Museum Collection
    • Ferguson TE-20,Test #392, 1948

    • Ferguson TE-20,Test #392, 1948

    • Larsen, Lester F., 1908-2000; Farm tractors; Ferguson tractors

    • "Test no. 392. Ferguson TE-20. L.F. Larsen & R. Hautzenroeder." Side view of Ferguson TE-20 tractor on the dirt test track. Hautzenroeder is on the driver's seat of the tractor and Larsen is standing by the side of the tractor.
    • Larsen Tractor Museum Collection

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