CHASSIS MODIFICATIONS 2-63 E UROCARGO Euro 4/5 2.15.3 Electronic braking system control devices For any changes to the electrical circuits, read carefully Chapter 5. ! When modifying the wheelbase, the ABS modulators must be kept in their original position in relation to the rear axle. The electrical wires (harness) between the sensors on the rear axle and the control unit and between the control unit and modulators must be modified accordingly by fitting the harness(s) from a longer wheelbase IVECO vehicle should there be insufficient length in the originals. Brake pipes upstream of the modulators must be similarly modified.
2.15.4 Taking air from the system Small quantities of air can be removed from the service tank to actuate the auxiliary devices (such as the power take-off) of vehicles equipped with a pneumatic braking system so as to have in the new power take-off a control pressure value of 8.5 bars and a limited return, that does not allow drawing air below this pressure. Draw the air directly from the 4-way safety valve on the service line (outlet 24), situated by the air reserves. For this purpose a T-coupling can be used (e.g. IVECO part no. 9842 0917) (see Figure 2.25).
Figure 2.25 91507 In case of installation of additional pneumatic services, charged use of the compressor must not exceed 50% of its operating time. If larger quantities of air are required a supplementary air reservoir must be fitted. In this case, it will be necessary to check that the air compressor fitted is capable of charging the brake system reservoirs within the prescribed times. If necessary a larger capacity compressor must be fitted. Modifications to the braking system Print 603.93.431 Base - January 2008