Operation & Maintenance Manual and User Service Guide Special instructions 1) It is very dangerous to increase the power by modifying the ECU data. Any change of ECU data without permit will lead to invalid “Three guarantees” and so on, and all losses and the legal responsibilities arising therefore would be borne by the users. 2) Common-rail fuel pump, turbocharger, urea solution injection system and other components, as the precision parts, should not be impacted or dismantled without permission; otherwise the "Three guarantees" will be invalid.
3) Please use Weichai designated fuel strainer and fine filter; otherwise any damage to the common-rail system will not be covered by the “Three guarantees”. 4) For Euro Ⅵ Diesel Engine, in order to make sure the normal operation of the SCR processor, please add urea solution produced by formal manufactures timely. It is forbidden to use urea solution mixed privately or other solutions, otherwise, all losses and the legal responsibilities arising therefrom would be borne by the users. 5) Please go to the formal fuel station to refill the stipulated fuel, otherwise any damage to the fuel system due to fuel quality will not be covered by the “Three guarantees”.
6) For Euro Ⅵ diesel engine, special Euro Ⅵ diesel fuel should be used, otherwise any problems arising therefrom, such as the emissions exceeded the limits of standard, should be borne by the users. 7) Any service such as repair or maintenance should be done at the designated service station and spare parts specified by Weichai Power should be used; otherwise, any damage to the diesel engines should be borne by the users. 8) The product norm follows Q/WCG 100.