3-34 BUILDING & MOUNTING THE STRUCTURES E UROCARGO Euro 4/5 Installation of cranes on off-road vehicles may require fitting elastic mountings between the chassis frame and subframe on the front and central areas (see Figure 3.11) so as not to excessively constrain the chassis torsional movement. Since in such cases the crane will be virtually connected to the subframe only, the size of the longitudinal runners must be adequate to resist the crane operation- generated movements. The functioning of the equipment that is placed behind the cab (e.g. gear levers, air filter, locking device for the tilting cab etc.) must not be impaired.
Relocating assemblies such as batteries box or fuel tank is permissible provided that the original type of connections are re-established. Normally, when the crane is placed behind the cab, it is necessary to move the body or equipment towards the rear. In the specific case of tipping equipment, particular care must be given to the placement of the lifting device and of the rear tipping hinges which should be moved back as little as possible. Table 3.9 - Crane fitted behind cab (fixing subframe with shear resistant plates) A = The prescribed reinforcement section for the relevant body is enough (e.g. for normal box-bodies). Close the reinforcement section in the crane assembling zone.
Strengthen the reinforcement sections less than 5mm thick in the zone of the crane. E = To be checked on a case by case basis. Send the technical documentation with the checks on the stresses and stability to the relevant IVECO bodies. *)= On the long cab version, use a section with modulus of resistance W x no less than 57 cm 3 .
Should a reduction in the height of the subframe section be required, using shear-resistant connections between the chassis frame and subframe, in place of the channel section it is possible to use structural elements with combined sections, as indicated in Table 3.9, provided the width of the flange and the thickness are not less than the corresponding values for the structural element recom- mended by IVECO. These conditions of a general character apply to the stated materials. The possibility of using materials with superior mechanical characteristics requires verifying the total moment of resistance of the chassis frame plus subframe.
Since reduc- ing the height of the structural element of the subframe also decreases the resistance to torsion, in the case of a crane with four stabilizers, the bodybuilder must take special precautions to create suitable torsional rigidity of the subframe in the crane support zone. For this reason it is recommended not to use structural elements of height under 120 mm. In addition, since implementing these solutions limits the torsional capacity of the chassis frame, they can only be used on vehicles for solely road use.
Installing a crane Base - January 2008 Print 603.93.431 ) Total torque MG max (kNm) Model A x B x t (mm) (N/mm2 R0,2 subframe 0/20 20/30 30/40 40/50 50/60 60/70 70/80 80/90 90/100 100/120 120/140 140/160 160/180 180/200 200/220 220/240 240/260 260/280 280/300 Minimum value of the modulus of resistance of the subframe section Wx (cm3) ML60, ML65, ML75, ML80EL 172 ,5x65x4 240 A A 31 46 57 89 105 E 360 A A A 31 46 57 89 105 119 E ML60, ML65, ML75, 172 ,5x65x5 240 A A A 31 46 89 89 119 E ML80EL 360 A A A A 31 46 57 57 89 E ML80 ,ML90 ,ML100 195 ,5x65x4 240 A A A 31 46 89 89 105 E 360 A A A A 31 46 57 89 105 E ML80, ML90, ML100 195 ,5x65x5 240 A A A 31 46 57 89 89 119 E ML110EL *), ML120EL *) 360 A A A A A 31 46 57 89 105 E ML110EL *), ML120EL *) 195 ,5x65x6 240 A A A 31 46 57 89 119 135 E 360 A A A A 19 36 46 57 89 E ML120, ML140, 240x70x5 240 A A A A A 21 36 57 89 105 E ML150E, MLI60E, ML100EW 360 A A A A A A A 21 36 89 105 E ML120, ML140, ML150 ,MLI60E, ML140EW 240x70x6 240 A A A A A A 31 46 89 89 E 360 A A A A A A A A 31 57 89 E ML120, ML140, 240x70x6 ,7 240 A A A A A A 21 36 57 89 E ML150, MLI60E 360 A A A A A A A A 21 46 89 105 E ML150E, MLI60E 240x70x7 ,7 240 A A A A A A A 31 46 57 105 173 208 E 360 A A A A A A A A 21 36 46 89 119 135 E ML180E, ML190EL 262 ,5x80x6 240 A A A A A A 21 21 36 89 105 150 208 245 E 360 A A A A A A A A 21 31 57 89 105 135 173 208 245 E ML180E, MLI90EL 262 ,5x80x6 ,7 240 A A A A A A A A 36 89 105 135 173 208 E 360 A A A A A A A A A 21 46 89 89 135 150 173 208 245 E ML180E MLI90EL 262 ,5x80x7 ,7 240 A A A A A A A A 21 57 89 135 150 208 245 E 360 A A A A A A A A A 21 36 89 89 135 150 173 208 245 E