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 CHU, CXU, GU, TD, MRU, LR
USA139046859 Date 5.2017 Body Builder; Engine, MP7, MP8, and MP10 Page 25 (43)
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