Heated Dump Bodies CAUTION Due to the higher exhaust temperatures created during the regeneration process of Diesel Particulate Filter equipped ve- hicles, it is strongly recommended to consult your heated dump body supplier to verify that these temperatures will not ad- versely affect their product. Failure to do so may result in component damage. The exhaust aftertreatment system virtually eliminates exhaust smoke. Exhaust vapor (water condensation) may be visible during a cold start. If exhaust smoke is visible during engine operation, this indicates a problem with the exhaust aftertreat- ment system. Take the vehicle to an authorized MACK Truck dealer immediately.
Vehicles equipped with a US2010/GHG2017 emission compliant engine have an exhaust aftertreatment system which in- cludes a Selective Catalytic Reduction (SCR) system and a Catalyzed Aftertreatment Diesel Particulate Filter (DPF). The Aftertreatment DPF takes the place of the standard muffler, and it reduces soot and particulate emissions into the atmos- phere. Soot and other particulate matter are collected by a filter where it is eventually oxidized using a regeneration process. Vehicles equipped with a Aftertreatment DPF require the use of EO-O Premium Plus (or VDS-4) specification high perform- ance diesel engine oil and ultra low sulfur diesel (ULSD) fuel.
The following are important items to consider when installing a heated dump body: Due to the presence of the aftertreatment system, exhaust gas temperatures can reach up to 650 °C (1202 °F) on GHG2017 and newer vehicles, and US2010 vehicles can reach 500 °C (932 °F) at the DPF outlet during a normal regen- eration cycle. These temperatures should be taken into consideration while installing equipment, in the vicinity of the ex- haust system. It may be necessary or prudent to affix warning labels on the equipment to warn people about these temperatures.
In the case of a heated dump installation; only use materials that can withstand the high temperatures as mentioned above, for body and other related parts. The use of a diverter valve to divert the exhaust to the atmosphere and away from the body during a regeneration. The lack of soot coating may mean increased corrosion for the body, diverter valve, pipes and other related parts. Always use suitable corrosion resistant materials for these parts. Heater lines to Urea pump. Notes Mack Body Builder Instructions PI / CHU, AN / CXU, GR / GU, TD, LR, TE / MRU USA141023213 Date 2.2018 Body Builder; Engine, MP7, MP8, and MP10 Page 25 (40) All Rights Reserved