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Custom Fire Apparatus, Inc. <br />CHASSIS WEIGHTS AND MEASUREMENTS <br />The apparatus manufacturer is to perform the following described weight recordings and suspension <br />deflection tests, on the bare chassis, and provide resulting information to the Purchaser: <br />Load Distribution NFPA 1901, 4.13.3.3: The fire apparatus, when loaded to its estimated in-service <br />weigh, shall have a side -to -side tire load variation of no more than 7-percent of the total tire load for that <br />axle. In order to provide baseline information for the completed apparatus' demonstration of compliance <br />with this NFPA requirement, the following tests and measurements are to be performed: <br />BARE CHASSIS SIDE -TO -SIDE WEIGHT RECORDINGS <br />Individual weights of the bare chassis, at 4-points, are to be taken as follows: <br />Driver side front tire only weight <br />Passenger side front tire only weight, <br />Driver side only rear tires weight <br />Passenger side only rear tires weight. <br />These weights are to demonstrate the bare chassis side -to -side weight disparities, prior to installation of <br />permanent apparatus components. <br />BARE AND VARYING LOAD CHASSIS SUSPENSION DEFLECTION TEST <br />Measurements are to be taken, from top of chassis frame rails -to -ground, above front axle and rear <br />axle(s) driver side and passenger side (4-points), under the following conditions: <br />Bare chassis, prior to installation of permanent apparatus components. <br />With 4,000 pounds of imposed weight, at projected apparatus load centerline. <br />With 8,000 pounds of imposed weight, at projected apparatus load centerline. <br />With 12,000 pounds of imposed weight, at projected apparatus load centerline. <br />These bare and weighted measurements are to demonstrate the actual amount of suspension deflection, <br />front and rear/side-to-side, with simulated apparatus payloads. <br />NOTE; THE ABOVE WEIGHTS AND DEFLECTION RESULTS, ARE TO BE NOTED WITHIN <br />THE COMPLETED VEHICLE DELIVERY DOCUMENTS. <br />NFPA RELATED STANDARDS: <br />GROUND CLEARANCE STANDARDS <br />Axle housings are to clear the road surface by at least 8" and; an angle of departure of at least 8 degrees <br />is to be maintained at rearmost protrusion (bumper/tailboard) of the vehicle when fully loaded. <br />VISIBLE WARNING DEVICE AND PLACARDS <br />The specified "Hazard" Indicator Light is to be mounted inside chassis cab so as to be prominently <br />visible to the driver. <br />07/26/22 <br />-69- <br />