Document ID: chunk:federal_register_of_legislation:F2021C00465:body:0:p14
Version: federal_register_of_legislation:F2021C00465
Segment Type: other
Provision Reference: 
Character Range: 38994–42269

FUPD is intended; this part shall be representative of the vehicle type(s) in question; or
                  3.                            On a rigid test bench.
              2.                                  In the case of paragraphs 1.1.2. and 1.1.3. above the parts used to connect the FUPD to part of the vehicle chassis or to the rigid test bench shall be equivalent to those which are used to secure the FUPD when it is installed on the vehicle.
              3.                                  At the request of the manufacturer and with the consent of the technical service the test procedure described in paragraph 3 below may be simulated by calculation or another such method provided that its equivalence is demonstrated.
          2. TEST CONDITIONS FOR VEHICLES
              1.                                  The vehicle may, if necessary to achieve the test forces required  in paragraph 3.1. below, be restrained by any method, this method to be specified by the vehicle manufacturer.
              2.                                  Dimensions shall be taken as if the vehicle were in the following condition:
                  1.                            The vehicle was unladen.
                  2.                            The vehicle was at rest on a level, flat, rigid and smooth surface.
                  3.                            The front wheels were in the straight-ahead position.
                  4.                            The tyres were inflated to the pressure recommended by the vehicle manufacturer.
                  5.                            Vehicles equipped with hydropneumatic, hydraulic or pneumatic suspension or a device for automatic levelling according to load were in their normal running condition specified by the manufacturer.
          3. TEST PROCEDURE
              1.                                  Points P1 are located up to 200 mm from the longitudinal planes tangential to the outermost points of the tyres on the front axle, excluding the bulging of the tyres close to the ground; points P2 are symmetrical to the median longitudinal plane of the vehicle at a distance from each other of 700 to 1,200 mm inclusive. The exact positions shall be specified by the manufacturer.

3.2.                                    The height above the ground of points P1 and P2 shall be defined by the vehicle manufacturer within the lines that bound the front face of the device. The height shall not, however, exceed 445 mm when the vehicle is unladen.  P3 is in the vertical longitudinal median plane of the vehicle (see figure 1 of the Regulation).
3.3.                                    The test forces set out below shall be applied to each of the test points in separate tests on the same vehicle or device or, if requested by the manufacturer/agent, on different vehicles or device samples.
3.3.1.                              If the structure and components of the vehicle relevant to the front underrun protection are located substantially symmetrical to its longitudinal median plane the tests at points P1 and P2 shall be carried out only on one side.
3.3.2.                              When tested the forces shall be applied as rapidly as possible and the device or vehicle shall withstand