Production cost analyses show a potential economic advantage for thegiant loaders on large jobs. This paper presents a cost comparison between the Model 475 tractor shovel, a smaller tractor shovel, and a swing shovel.Evolutionary events and designs leading to the creation of the 475 are presented and discussed. Design considerations and specific features of this unit are pointed out. Some of these are: loader linkage design, hollow boom construction, split hydraulic system, and a hydraulic power assist for operator controls. Prototype testing and changes are discussed and explained.


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    Titel :

    A Giant Tractor Shovel - The 475


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Hand, Gene F. (Autor:in) / Jarpe, Jay S. (Autor:in)

    Kongress:

    18th Annual Earthmoving Industry Conference ; 1967



    Erscheinungsdatum :

    01.02.1967




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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