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REV: 04-29-25 LF <br />pounds and have a minimum section modulus of 29.21 cubic inches. The frame shall measure <br />35.00 inches in width. <br />A minimum of seven (7) fully gusseted 0.25 inch thick cross members shall be installed. The <br />inclusion of the body mounting, or bumper mounting shall not be considered as a cross member. <br />The cross members shall be attached using zinc coated grade 8 fasteners. The bolt heads shall <br />be flanged type, held in place by distorted thread flanged lock nuts. Each cross member shall be <br />mounted to the frame rails utilizing a minimum of 0.25 inch thick gusset reinforcement plates at <br />all corners balancing the area of force throughout the entire frame. <br />All relief areas shall be cut in with a minimum 2.00 inch radius at intersection points with the edges <br />ground to a smooth finish to prevent a stress concentration point. <br />FRAME PAINT <br />The frame rails shall be hot dip galvanized prior to assembly and attachment of any components. <br />The components that shall be galvanized shall include: <br />•Main frame “C” channel or channels <br />The frame parts which are not galvanized shall be powder coated prior to any attachment of <br />components. Parts which shall be powder coated shall include but are not limited to: <br />•Steering gear bracket <br />•Front splayed rails and fish plates <br />•Bumper extensions <br />•Cross members <br />•Cross member gussets <br />•Fuel tank mounting brackets <br />•Fuel tank straps (unless material/finish is specified in 3130 subcat) <br />•Air tanks (unless color coded tanks are specified in 3205 subcat) <br />•Air tank mounting brackets <br />•Exhaust mounting brackets <br />•Air cleaner skid plate <br />•Radiator skid plate <br />•Battery supports, battery trays and battery covers <br />Other non-galvanized under carriage components which are received from the suppliers with <br />coatings already applied shall include but are not limited to: <br />•Suspension components <br />•Front and rear axles <br />All powder coatings, primers and paint used on the non-galvanized components shall be <br />compatible with all metals, pretreatments and primers used. The cross hatch adhesion test per <br />ASTM D3359 shall not have a fail of more than ten (10) squares. The pencil hardness test per <br />ASTM D3363 shall have a final post-curved pencil hardness of H-2H. The direct impact resistance <br />test per ASTM D2794 shall have an impact resistance of 120.00 inches per pound at 2 mils. <br />ATTY/AGR.2025.089/Fire Apparatus Solutions (Purchase of Spartan-LTC 105' TDA) (Page 49 of 150)