Aftertreatment Diesel Particulate Filter (DPF) CAUTION

Use diesel fuel other than ULSD and engine oils other than - O Premium Plus (or VDS - will adversely fect ficiency and durability the Aftertreatment DPF system and the the point where the engine may not run Manufacturers warranties can also rendered void due usage improper Unapproved fuel additives (including engine oil) are NOT Blends and grades ULSD are recommended and allowable for cold weather

The exhaust aftertreatment system virtually eliminates exhaust White exhaust vapor (water condensation) may visible during a cold black exhaust smoke visible during engine this indicates a problem with the exhaust aftertreatment T ake the vehicle authorized Mack T ruck dealer immediately

V ehicles equipped with a 2010 emission compliant engine have exhaust aftertreatment system which includes a Selective Catalytic Reduction (SCR) system and a Conventional TRU Aftertreatment Diesel Particulate Filter (DPF). The Aftertreatment DPF takes the place the standard muf fler , and reduces particulate emissions into the atmosphere. Soot and other particulate matter are collected a filter where eventually oxidized using a regeneration process. V ehicles equipped with a Aftertreatment DPF require the use - O Premium Plus (or VDSspecification high performance diesel engine oil and Ultra Low Sulfur Diesel (ULSD) fuel. W2030326

•

•

•

•

•

Aftertreatment Control Module (ACM)

•

•

•

•

•

•

The ACM controls the following components the exhaust aftertreatment system:

Aftertreatment DEF Dosing Unit

Aftertreatment DEF T ank Heater V alve

Aftertreatment DEF Line Heaters

Aftertreatment DEF Pump

Aftertreatment DEF Return V alve

The ACM also monitors the following values the exhaust aftertr eatment system:

Aftertreatment DEF Dosing Pressure

Aftertreatment DEF T ank T emperature

Aftertreatment DEF T ank Level

Aftertreatment DPF Inlet/Outlet T emperature

Aftertreatment DEF T ank Level Sensor

Aftertreatment DPF Dif ferential Pressure

• NOX Sensors

The ACM a stand alone module. Depending your configuration may mounted part the DEF tank (as shown above) a bracket near the DEF tank.

Exhaust Aftertreatment System

Aftertreatment DPF Regeneration

DPF Smart Switch – This a three - position switch where the middle position neutral.

C0029148

DPF Smart Switch

Upper Position – Regeneration Position Down Position – Inhibit Position (if equipped)

Middle Position – Neutral Position

Caution

During the Aftertreatment DPF the exhaust gas temperature will NOT park the vehicle with the exhaust outlet near flammable objects such that could damaged elevated exhaust gas https://www.truck-manuals.net/

Caution

the vehicle a location that may hazardous when DPF Regeneration begins close proximity flammable materials gases, inside parked under flammable the DPF Regeneration should stopped (if DPF Regeneration stopped the vehicle operator , must initiated a later time when the vehicle a safer DPF Regenerations that are stopped and never restarted a later however , will require that the vehicle taken authorized Mack T ruck dealer have the Aftertreatment Regeneration manually started with special service

Note: During vehicle operation, idle speed may increase when the vehicle stopped a traf fic light maintain heat the DPF for passive regeneration and urea

There are two types Aftertreatment DPF Regeneration: Passive regeneration and Parked

Passive regeneration occurs when the exhaust gas within the aftertreatment system hot enough remove soot without injecting additional fuel into the dpf chassis equipped with a US07 aftertreatment DPFs needed active that included this injection W ith the addition the SCR system active regenerations are longer needed for

Parked Regeneration

The Aftertreatment DPF Regeneration system selfmonitoring. Under certain duty cycles driver action needed perform a parked regeneration. When driver action needed perform a parked regeneration, icon the top the DPF Smart switch will illuminate notify the vehicle operator . The DPF Smart switch allows the vehicle operator either stop start regeneration. (Certain conditions must met, however , before regeneration can manually started.)

Parked regeneration allows the operator start and/or stop the regeneration manually when the vehicle parked and the engine The operator notified that a regeneration needed when the icons the DPF Smart switch The operator should perform the regeneration soon

Please refer the instructions below how use the DPF Smart switch for parked regenerations.

Move the vehicle a safe apply the park brake and allow the engine

W Arning

When a r egeneration ocess, the temperatur e the exhaust will elevated. NOT park the vehicle with the exhaust outlet under low hanging overhead flammable objects such ees, awnings, etc., that could damaged elevated exhaust temperatur es. NOT attempt r egenerate inside a garage enclosed the tail pipe attached exhaust ventilation system the hose material may not rated for the high temperatur

Press and hold the top part the DPF Smart switch momentarily initiate the regeneration.

During the icons the switch will shut The HEST indicator the instrument cluster will light notify high exhaust

For aftertreatment DPF filter systems, the engine speed may ramp high 1,250 rpm.

Parked regeneration will take between and minutes

After regeneration has completed and the exhaust temperature has returned normal, the HEST indicator will shut

T o stop press the switch down the inhibit position (if When the bottom the switch regeneration The switch will remain locked this position and the light will stay The driver has the option stopping a regeneration the vehicle area where elevated exhaust temperatures will pose a hazard under area where there flammable

Note: The HEST lamp will remain comes during the and remain until the exhaust temperature returns

Caution

Failur e perform a r egeneration a timely manner after notification may r esult engine derate, a clogged DPF , damage the DPF and engine shutdown. https://www.truck-manuals.net/

Danger

During the regeneration process, the temperature the exhaust gases will elevated. NOT park stop for extended period under low hanging overhead flammable objects such trees, awnings, structures, etc., that could damaged elevated exhaust temperatures. Further , the vehicle being operated area where flammable vapors exist, the regeneration process must interrupted. Failure heed these cautions may result fire explosion causing serious personal injury death.

Note: not initiate a parked regeneration the vehicle a location that may hazardous (i.e., close proximity flammable materials gases), a parked regeneration stopped the vehicle operator , should initiated a later time when the vehicle a safe location. However , a parked regeneration stopped too many the vehicle must taken a MACK service facility . The service facility will use a service tool manually initiate the regeneration.

W Arning

The temperatur e the exhaust system components during the r egeneration ocess 350 degr ees C (660 F). The exhaust gas leaving the system can r each 505 degr ees C (930 F). V arious factors (including ambient temperatur e and duration the r egeneration ocess) determine when these components will r eturn normal operating temperatur e after r egeneration has completed. extr emely car eful ound these hot components. Contact with these components can r esult serious personal injury .

Caution

When the inhibit position essed, the switch will r emain a locked position. ther efor immediately set the switch back the neutral position when safe so. Failur e set the switch back the neutral position may r esult engine clogged diesel particulate filter damage the filter .

DPF INHIBIT ROAD SPEED LIMITING (RSL)

The DPF Smart Switch can locked into the DOWN (or Inhibit Regen) position the driver (if the DPF Smart Switch remains the locked the following vehicle speed limiting will occur:

1 V ehicle Moving. vehicle moving with the DPF Smart Switch the locked (DOWN) position, the vehicle speed will decrease down kph (10 mph) below the current speed until the driver releases the switch back the neutral (MIDDLE) position.

2 V ehicle Stationary and then the vehicle stationary with the DPF Smart Switch the locked (DOWN) position and the driver then begins move the truck, the vehicle speed will limited kph (10 mph) until the driver releases the switch back the neutral (MIDDLE) position.

Refer the Exhaust Aftertreatment System Information sun visor label for additional Aftertreatment DPF information. W8056653

Driver W arnings and Board Diagnostics (OBD)

Board Diagnostics (OBD)

Beginning with your 2010 compliant V ehicle, Board Diagnostics (OBD) introduced. This very similar the Board Diagnostics (OBD) system that has been required passenger cars for many years.

the vehicle operator any detected need for emission related repair . When the systems detects a needed repair emissions related component activates the Malfunction Indicator Lamp (MIL).

Board Diagnostics (OBD) a system that monitors the functions emissions related components and alerts

The list emissions related components can found the W arranty and Maintenance section this manual. https://www.truck-manuals.net/