CHASSIS MODIFICATIONS 2-39 E URO C ARGO E URO 4 - 5 Should it be necessary to reduce the height of the runner profile using shear resistant connections, combined section runner profiles can be used instead of the specified channel profiles (moment of resistance shown in Table 2.14). Combined section runner profiles can be used as shown in Table 2.15 providing the flange width and thickness are not smaller than the corresponding values tabulated in the runner profile section table e.g. box body. In all cases the structure / application that requires the larger Wx value must be used e.g. body Wx = 36, crane Wx = 46 then the runner / runner profile must not be less than 46cm 2 .
Table 2.15- Combined section reinforcement runner profiles (see Figure 2.16) Figure 2.16 Normal box section profiles Gradual change from box section to open section Version ”A” Version ”B” Version ”D” Version ”C” Special combined section profiles Chassis/subframe connecting an- gle plates of same thickness as subframe profile 91506 The continuity of combined reinforcement runners can be interrupted only in special cases and is subject to authorisation.
Similarly, when it is difficult to apply an external reinforcing L section (items C and D see Figure 2.16)- owing to the presence of suspension mountings or air spring connection brackets - and the recessing to be performed could excessively reduce the section’sresisting capacity, the adopted solution will require special authorisation.
Installing a Towing Device Print 603.93.431 Base - July 2006 Revi - June 2007 Engine A B C D R0,2 (N/mm2) (1) 320 320 360 360 Maximum runner profile height reduction (mm) 40 60 100 120 LV (see Figure 2.15) 0.5 Lu 0.5 Lu 0.8 Lu 0.85 Lu Lh (see Figure 2.15) 0.6 Lu 0.6 Lu 0.95 Lu 1.0 Lu Example of combined section as alternative to 250x80x8 (mm) channel section 210x80x8 190x80x8 150x50x8+ angle section 130x50x8+ angle section Actual height reduction (mm) 40 52 92 104