CHASSIS MODIFICATIONS 2-25 E URO C ARGO E URO 4 - 5 The intermediate shaft and the inclination of the rear axle case must be aligned accurately. The difference in their inclination relative to the engine-clutch-gearbox axis must not vary more than 1 ° . This can be achieved by fitting wedges between the rear axle and the springs, or by adjusting the rear axle reaction bars. The inclination of the rear axle must not exceed 5 ° 30’.
When, with a loaded vehicle, the rear axle flange is at a level which is lower than that of the gearbox flange, care must be taken to ensure that the inclination of the differential housing and of the driven shaft are greater than the inclination of the engine-gearbox axis. On the other hand, if, with a loaded vehicle, the rear axle flange is at a level which is higher than that of the gearbox flange, the inclination of the differential housing and of the driven shaft must be less than the inclination of the engine-gearbox axis. When the lengthening of the wheelbase is substantial, it may become necessary to employ a supplementary intermediate shaft as shown in Figure 2.9.
In this case it is necessary to ensure the same inclination in the engine-gearbox axis, the second intermediate shaft and the axis of the bridge case on static loading of the vehicle. Figure 2.9 91452 1 Engine, clutch, gearbox axis 2 1st intermediate shaft 3 Intermediate shaft support 4 2 nd intermediate shaft 5 Propeller shaft with splined end 6 Inclination of rear axle case (static load) 7 Inclination of rear axle case (max. compression) 8 Inclination of rear axle case (unladen) 9 Gearbox, 2nd intermediate shaft and rear axle case axis must have same inclination. Elastic supports shall be applied with the aid of supporting plates, at least 5 mm thick (see.
Figure 2.10), connected to cross-members having the same characteristics as those specified by IVECO. When reducing the wheelbase it is recommended that the intermediate shafts be removed if the length of the splined shaft is less than approximately 800 mm. Print 603.93.431 Base - July 2006 Revi - June 2007