SPECIAL INSTRUCTIONS FOR -SCR- EXHAUST SYSTEMS 6-11 E UROCARGO Euro 4/5 Water/AdBlue connectors Figure 6.12 114742 1. H 2 O infeed/outfeed connectors for AdBlue heater - 2. AdBlue infeed/outfeed connectors The temperature and level sensors are connected to the DCU (Dosing Control Unit); the level sensor is specific to each type of tank, therefore its dimensions cannot be modified. 6.5.2 Operations on AdBlue pipes and heating water ! After turning off the engine, the outlet ducts (PL/UPL) and the inlet ducts (IL/UIL) must be drained to prevent the AdBlue freezing in the ducts and components if temperatures are low.
The time that elapses is approximately 2 minute and must not be interrupted by premature disconnection or the battery or disconnector. The process may clearly be heard because the AdBlue pump keeps working even after the engine has been turned off. As far as the pipes connecting reservoir, supply module and dosing module are concerned, ensure that: - the connection pipes between the AdBlue reservoir and the supply module (delivery or inlet line or return or return line) must be 5 m; - the connection pipes between the supply module and the dosing module (delivery or pressure line and return or cooling line) must be 3 m.
The pipes may only be modified using the ”Voss” fittings described in Table 6.1. Specifications for installation and removal Print 603.93.431 Base - January 2008