2-44 CHASSIS MODIFICATIONS E UROCARGO Euro 4/5 2.7.11 Lifting device The added axle can be equipped with lifting device and it can be used, in particular cases, if the national laws allow it, in order to increase the adherence of the driving axle in certain situations (uphill pickup, slippery, snowy or icy road), under the following conditions: - The construction is subordinate to IVECO issuing the relevant approval, which states the permissible maximum load on the overloaded axle. - Use of the device is limited to short distances, in the above-mentioned uses, and at the speed limit established in the specific authorization.
Some national regulations allow using the lift device also when driving the vehicle normally provided that the max load of the type-ap- proval for the driving axle and the permitted speed limit are not exceeded. In these cases it is wise to remember the instructions of point 1.13.2 as concerns positioning the centre of gravity of the body plus the useful load. Type-approval tests and responsibility for the work After conversion the vehicle must be presented for the type-approval tests (e.g., single testing or type-appro- val testing) with the competent local Authorities.
Granting the authorization for IVECO to apply an additional axle and passing the type-approval tests do not exempt the bodybuilder from full responsibility for the conversion. For the service and maintenance work, for the added assemblies plan for operations and work times that are homogeneous with what is set down for the original vehicle and stated on the specific documentation. 2.7.12 Modifying the suspension ! Changes to the suspension can be made only with IVECO’s prior approval, the suspension being a sys- tem of decisive importance to riding safety. As a general rule no modification of the parabolic springs is permitted.
On vehicles equipped with these springs, installation of elastic rubber components may be authorised for special versions or uses in order to increase the stiffness of the suspension. In very specific cases, and for specific uses, the possibility may be evaluated of adding an extra leaf to the parabolic spring. This operation should be carried out by a specialised firm following approval by IVECO. The use on the same axle of one parabolic spring and one trapezoidal spring is not allowed. 2.7.13 Conversion from mechanical to pneumatic suspension This type of conversion is generally authorized on the rear axle. Solutions suggested by the bodybuilders can be examined.
For everything that concerns the sizing of the air springs, fasteners, reaction bars, functionality of the suspension and the air supply system and the behaviour of the vehicle, the firm that made the conversion is in any case responsible. The suspension components and the anchoring elements have a safety effect in terms of vehicle handling, and the company carrying out the transformation must therefore take the necessary precautions. The air tank (where applicable) for the suspension must be connected to the specific circuit, supplied by the specific air compressor. Installing a supplementary axle Base - January 2008 Print 603.93.431