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Bidder <br />Triple Combination Pumper Specifications for thc 3s Complies <br /> <br />City of Elk River Minnesota Yes No <br />The backbone of the support system shall be the chassis frame rails, which is the strongest <br />component of the chassis and is designed for sustaining maximum loads. <br />The support system shall include .375" thick steel vertical angle supports bolted to the chassis <br />frame rails with .625" diameter bolts. <br />Attached to the bottom of the steel vertical angles shall be horizontal angles, with gussets <br />welded to the vertical members, which extend to the outside edge of the body. <br />A steel frame shall be mounted on the top of these supports to create a "floating substructure" <br />which shall result in a 500 pound equipment support rating per lower compartment. <br />The floating substructure shall be separated from the horizontal members with neoprene <br />elastomer isolators. These isolators shall reduce the natural flex stress of the chassis from <br />being transmitted to the body. <br />Isolators shall have a broad load range, proven viability in vehicular applications, be of a fail <br />safe design and allow for all necessary movement in three (3) transitional and rotational modes. <br />The neoprene isolators shall be installed in a modified "V" three (3)-point mounting pattern to <br />reduce the natural flex of the chassis being transmitted to the body. <br />A design with body compartments hanging on the chassis in an unsupported fashion shall not <br />be acceptable. <br />AGGRESSIVE WALKING SURFACE <br />All exterior surfaces designated as stepping, ~tanding, and walking areas shall comply with the <br />required average slip resistance of NFPA 1901 section 13-7.3. <br />LOUVERS <br />All body compartments shall have a minimum of one (1) set of louvers stamped into a wall to <br />provide the proper airflow inside the compartment and to prevent water from dripping into the <br />compartment. These louvers shall be formed into the metal and not added to the compartment <br />as a separate plate. <br />TESTING OF BODY DESIGN <br />Body structural analysis has been fully tested. Proven engineering and test techniques such as <br />finite element analysis, stress coating and strain gauging have been performed with special <br />attention given to fatigue, life and structural integrity of the cab, body and substructure. <br />Body shall be tested while loaded to its greatest in-service weight. <br />The criteria used during the testing procedure shall include: <br />Page 35 <br /> <br /> <br />