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South Bend Fire Department <br />CommanderChassis <br />FRONT FRAME EXTENSION <br />A single piece 80,000 PSI steel extension shall beinstalled on the front of the frame rails. <br />·Reduces frame flexwhich translates into improved vehicle handling and ride quality <br />·Designs using multiple piece, bolted together extensions will not be acceptable since theyare <br />prone to more flexing, possible frame failure and cab cracking <br />·Allows radiator to be removed through the bottom of the frameextension without tiltingthe <br />chassis cab <br />·Minimizes damage to the chassis cab in the eventof frontal impact accident <br />·Maintains structural integrity of the chassis frame rails while attaching bumper extensions of <br />varying lengths <br />·Splayed or notched frame rails and/or extensions shall not be accepted <br />·Provides foundational strength and stability of the cab tilt system which provides superior access <br />to engine and cooling components <br />One (1)Frame/Front ExtensionHot Dip Galvanized <br />07-09-0137 <br />FRAME FINISH <br />Prior to assembly, each framerail section and cross members shall be hot dip galvanized. The <br />galvanizing process will permeateeach frame section to prevent rust and corrosion and not be <br />merely an over-coating. The galvanized frame sections shall be provided in the natural finish <br />eliminating the requirement for finish paint and the subsequent requirements for touch up paint <br />and/or total repaint aftera period of time due to nicks, chips and corrosion. <br />Galvanizing shall provide a barrierand cathodic protection from corrosion. During the <br />galvanizing process, thecomplete frame sectionsand cross members shall be immersed in <br />molten zinc; except for the cross member that contains the engine mounts. Through diffusion, the <br />zinc shall bond to the steel at the molecular level.The resulting zinc coating shall provide a <br />barrier that shields the steel from theenvironment. <br />10039-001609/02/20 <br />56 <br />PDF created with pdfFactory Pro trial version www.pdffactory.com <br /> <br />