Spring brake unit, developed by Pacific Gas and Electric Co, uses truck's air system as opposing force, that is, normal air pressure holds steel spring in compression; whenever air pressure drops below 45 psi, spring is released to apply brakes automatically; separate control is provided in driver's compartment for manual operation at any operating pressure; spring application on brake mechanism also acts as reliable parking brake when air is exhausted from spring chamber; air brake system inspection procedures are also described. (Rec'd 1968)


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    Title :

    Emergency parking brakes for utility vehicles


    Additional title:

    SAE -- SP


    Contributors:
    Larson, G.P. (author) / Sabin, R.J. (author)


    Publication date :

    1967


    Size :

    5 pages


    Type of media :

    Report


    Type of material :

    Print


    Language :

    English


    Keywords :


    Emergency Parking Brakes for Utility Vehicles

    Larson, G. P. / Sabin, R. J. | SAE Technical Papers | 1968


    PARKING AND EMERGENCY BRAKES

    MILLER, J. L. | SAE Technical Papers | 1959


    Parking and emergency Brakes

    Miller, J.L. | Engineering Index Backfile | 1959



    Utility vehicle workshop : parking brakes

    Society of Automotive Engineers | TIBKAT | 1967