6-22 SPECIAL INSTRUCTIONS FOR -SCR- EXHAUST SYSTEMS E UROCARGO Euro 4/5 Orientation of dosing module (DM) in the exhaust pipe: When positioning the DM, a distinction is drawn between the positioning rotation angle in the exhaust pipe and the exhaust pipe installation angle (see following figure). Figure 6.25 Exhaust pipe installation angle 123270 Angle of rotation of DM in exhaust pipe Orientation of dosing module (DM) inrelation toangle of rotation in exhaust pipe: To prevent operating errors and damage to the DM, the following positions must be respected during installa- tion: - 315° - 45° (A) The increasing heat in the exhaust pipe may damage the DM or cause it to malfunction.
In this case, a heat shield must be installed under all circumstances. - 90° - 270° (D) The AdBlue fluid contained in the dosing module. In If temperatures are very low, this may freeze and damage the module. - 45° - 90° and from 270° to 315° (C - E) In this position installation is possible, a minimum quantity of AdBlue remains in the module. - 60° - 70° (B) This is the idea position for installing the DM and must be absolutely preferred if conditions permit. 123271 Exhaust gas pipe installation angle: The installation angle must be between +45° and -90°. Specifications for installation and removal Base - January 2008 Print 603.93.431