5.2 Aperture in rear cab panel
The max. aperture is limited by the B-pillars, the B-bracing elements and the cab floor.
Important notes:
- Roof crossrails or weight-bearing parts are not allowed to be removed without replacement or to be damaged.
- The strength and rigidity of the cab structure are not allowed to be changed.
- It is necessary to comply with ECE-R14, 76/115/EEC, 74/60/EEC and the "kerb test"
- The connection between the crossrail and the side wall must be flexurally rigid.
- If it becomes necessary to make a cut in the back wall of the cab in order to perform a conversion or to effect an installation then this is possible in conjunction with a frame around the outline of the cut. The replacement rigidity provided by the frame must be at least that of the original rigidity.
- Changes to the cab are not allowed to impair the function of any safety-relevant components (such as airbag units, sensors, pedals, selector lever, cables, lines and the like). This can lead to a failure of components and safety-relevant parts.
The box body should be flush fitted to the cab with flexible mountings. That is, the connection should not be flush bonded, but carried out in such a way that the twisting movement between box body and cab is not transmitted directly into the cab. It should be absorbed within the connection.
