BUILDING & MOUNTING THE STRUCTURES 3-21 E UROCARGO Euro 4/5 3.4.2 Tipper bodies The use of tipping bodies, whether front end or three way, subjects the chassis to notable stress. For this reason it is most import- ant to select the right vehicle from among those intended for this use. Therefore we list here the specifications that must be adhered to for this type of construction subdivided according to light or heavy duty. Table 3.5 and Table 3.6 give the minimum runner dimen- sions for the subframe with which these vehicles must be equipped. Furthermore any government regulations concerning these vehicles must also be adhered to.
Where Iveco offer a rear stabilizer bar as an option it is recommended this should be fitted. The following points must be kept in mind: - The subframe must be (see Figures 3.7 and 3.8) suitable for the vehicle type and for the specific operating conditions. It must have adequately dimensioned longitudinals and cross members and be stiffened at the rear by box-type construction and cruci- form. Fixing the subframe to the chassis, flexible connections (brackets or clamps) must be placed at the front end, whereas the rear section requires rigid-type joints (cleat plates, see Figure 3.15) to allow the added structure to contribute more to the rigidity of the whole.
The ”omega” brackets can be used on vehicles which are already fitted with them. - The rear tipping hinge must be fitted on the subframe as near as possible to the rear support of the rear suspension. In order not to impair the stability of the vehicle during tipping operations and not to increase excessively the stress on the chassis, it is recommended that the distances between the tipping hinge and the rear spring rear hanger or tandem centreline is observed (see Figure 3.17). If for technical reasons this cannot be achieved, small increases may be permitted provided a higher strength subframe is used, in order to increase the rigidity of the rear end.
Where long bodies are needed to transport large volumes, it is advisable (in those cases where it is permissible) to lengthen the wheelbase of the vehicle. - Great care must be given to the positioning of the lifting ram both in terms of providing supports of adequate strength and in order to correctly position the mountings, it is advisable to place the ram to the front of the centre of gravity of the body and payload so as to reduce the extent of the localized load into the chassis. - For both under floor and front end tipping gear installations it is recommended that an appropriate stabilizer is fitted to act as a guide during the tipping operation.
- The lifting ram must be mounted on the subframe. The useful volume in the body must conform. With the maximum permissible load on the axles. To the density of the material that is to be transported (a density mass of approx. 1600 kg/m 3 is to be used for excavated material). When freight having a low density is transported, the useful volume may be increased within the limits established for the maxi- mum height of the centre of gravity of the payload plus the fixtures. - The bodybuilders must ensure the functioning and safety of all parts of the vehicle (for instance, the positioning of lights, tow hook etc.) is safeguarded and in full compliance with the current safety regulations.
Fitting box-bodies Print 603.93.431 Base - January 2008