The chassis and suspension
The chassis of the 4x2, 6x4 and 8x4 trucks are built with constant section rails made of FeE 490 high yield steel (490 N/mm²), 7.7 mm thick on the light range and 10 mm thick on the heavy range. The suspension attachments are reinforced on the latter. The width is 1.03 m at the front, to allow wide radiators to be installed, and 0.77 m at the rear, to simplify the assembly of equipment and outfits. To this end, the longitudinals are fitted with bolted plates and brackets to attach the counterframes of the outfits. The rear overhang is longer on cement mixers.
The “light” Trakkers adopt parabolic suspension as standard. At the front, the capacity is 8 t, with a single axle and 2 x 8 t for the double axle on the 8x4 versions. At the rear, the capacity is 13t on the 4x2 and 21 t on the tandems of the 6x4, 6x6 and 8x4. Cement mixers, which have a high centre of gravity, can be fitted with reinforced anti-roll bars on the front axle and rear axles (on request).
The suspension of “heavy” Trakkers offers more choice: at the front, the standard configuration is parabolic with a capacity of 8 t. However, parabolic or semielliptical suspension systems with a capacity of 9 t (2x8 t or 2x9 t parabolic on the 8x4) are available as an option. The suspension systems on the tandem can be semielliptical or parabolic (a novelty) with a capacity of 32 t.
Another important novelty: air suspension for the 6x4 and 8x4 tandems with four air tanks for each axle. This suspension is available with two specifications, 21 t and 26 t for the tandems. On a construction site vehicle, air suspension with four tanks on each rear axle allows greater rear axle crossovers than a leaf-spring suspension, improving the distribution of the load and the drive on loose surfaces. Another advantage: comfort on the road, particularly when the vehicle is empty. Air suspension is also available on the rear axles of the 4x4 models and on the tandems of the 6x4 tractors.