2-26 CHASSIS MODIFICATIONS E UROCARGO Euro 4/5 2.6.2 Traditional towing hooks Choice of hook for traditional trailers The reference dimension for choosing the type of hook is defined by value D calculated as defined below. Figure 2.9 116773 Free area for towing hooks When selecting the appropriate hook and for the use of reinforcements for the rear cross member (where necessary), the effect of the horizontal forces produced by the weight of the tractor and trailer must be taken into account in accordance with the following formulas: T x R T + R D = 9.81 x D = Representative value of the hook class (kN). T = Maximum weight of tractor, in kg. R = Maximum weight of trailer, in kg.
Installing a towing device Base - January 2008 Print 603.93.431