2-58 CHASSIS MODIFICATIONS E UROCARGO Euro 4/5 Modifications to the braking system 2.15 Modifications to the braking system 2.15.1 General specifications ! The braking system with its components represents an element of crucial importance to vehicle safety. It is prohibited to make changes to units such as the brake force control system, distributor, brake cyl- inders, valves, etc, which are rated as safety components. Any changes to the braking system (changes to the piping, fitting additional operating cylinders, etc.) require prior authorisation from IVECO. For new equipment we recommend the same make as those fitted to the original vehicle.
When required by national regulations, the vehicle must be submitted for testing to the respective authority. If moving regulating valves, dryer, etc., restore the same type of installation as originally made, checking it all works properly. If repositioning the dryer or outfit that reduces its ventilation or its feeding piping (coming from the compressor), it is necessary to make sure that its inlet temperature (measure on the supply line near the dryer) is never greater than 655 C under all conditions of using the vehicle. If repositioning the dryer, the extension of the pipes must not be done with an air trap. In addition, the dryer exhaust pipe must have no air traps.
The original length of the feeding pipe is to be considered minimal. Do not position equipment above the chassis frame such as to prevent replacement of the dryer car- tridge. ! 2.15.2 Brake pipes When the wheelbase or rear overhang of the chassis are modified, the brake pipes concerned must be replaced by a single length of new pipe. Where this is not possible the connectors used must be of the same type as those used originally on the vehicle. When replacing observe the minimum internal dimensions of the existing pipes. The new pipes must have the same characteristics and be of the same material as those used originally on the vehicle.
The installation must be carried out so that the piping is protected and the correct function of the system ensured. For the supply and fitting of material we recommend that you contact our Parts Centres or specialised workshops. Plastic Pipes When fitting new pipes or replacing others, plastic must not be used for the following: - in areas where the temperature reaches more than 80 ° C (e.g. within 100 mm of the engine exhaust system). - Between fixed and moving parts, in this case special hoses are to be used. - On the hydraulic lines. During modification the following must be observed: - Material and dimensions : Standard DIN 74324 (Iveco Standard 18-0400) (max.
operating pressure 11 bars) - Radii of curvature : min. 6 Ш outer dia (referred to the pipe centreline) Modifications to the braking system Base - January 2008 Print 603.93.431