2-30 CHASSIS MODIFICATIONS E UROCARGO Euro 4/5 2.6.4.1 Lowered rear cross member If the type of trailer used requires that the tow hook be positioned lower than originally intended, IVECO may issue authorisation for the original cross member to be lowered or for an additional cross member (of the original type) to be fitted in a lower position. Figures 2.11 and 2.12 give some examples of how this is done. The installation of the new cross member in its new position must be carried out in the same manner as before, using the same type (diameter and class) of bolt. Figure 2.11 91456 1. Original rear cross member - 2. Gusset - 3. Upside-down gusset - 4.
Connecting angle piece The thickness of the outer reinforcing angles must not be less than the thickness of the side members of the vehicle. They must cover a length which is at least 2.5 times the height of the side member itself (maximum 600 mm) and be made of material with the properties indicated in point 3.1.1. The angles are to be attached to the web of the side members using all the bolts joining the cross member to the frame, integrating them with the other bolts so that, as a result of their number and location, they will take into account the greater moment transmitted.
As a general rule, when the cross member is lowered by an amount equivalent to the height of the side member, the number of bolts is increased by about 40%. When an additional cross member is installed (see Figure 2.12) a central joining plate with a thickness commensurate with that of the cross members, must be employed. A device to prevent the bolts from loosening must be adopted for the joints. Installing a towing device Base - January 2008 Print 603.93.431