Mack Granite GU Series, Руководство оператора

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240 Mack, EPA2010 Emissions Solution
A Diesel Particulate Filter (DPF) takes the place of the standard muffler. The
DPF is used to meet EPA requirements to help reduce soot and particulate
emissions into the atmosphere. The particulates are removed by collecting in
the DPF unit, where they are eventually oxidized with passive regeneration
or active regeneration of the filter. The electrical system and exhaust
aftertreatment system of the vehicle will determine when regeneration is
required. Mack Trucks, Inc., uses two exhaust aftertreatment systems:
conventional and TRU.
Conventional exhaust aftertreatment systems use passive-active regeneration.
The passive regeneration process oxidizes the particulates captured in the
DPF while the vehicle is in operation. An oxidation catalyst raises the exhaust
temperature to approximately 260°C (500°F), the temperature at which a
chemical reaction takes place to oxidize the soot (passive regeneration)
TRU exhaust aftertreatment systems use active regeneration. Regeneration
takes place after a certain number of engine operating hours and begins when
an air/fuel mixture is injected into the thermal regenerator and raises the
temperature inside the unit to the point where the soot oxidation takes place.
Conventional exhaust aftertreatment systems are used in highway and certain
vocational applications. TRU exhaust aftertreatment systems are used mainly
in refuse collection applications.
Depending on how the vehicle is set up, regeneration can occur while the
vehicle is being driven (referred to as a "moving" regeneration) or when the
vehicle is parked and idling (referred to as a "parked" regeneration).
CAUTION
When active regeneration occurs (with either system), the temperature of the
exhaust will be elevated. DO NOT park the vehicle with the exhaust outlet under
low hanging overhead flammable objects such as trees, awnings, etc., that could be
damaged by elevated exhaust temperatures. DO NOT remove the diffuser.
CAUTION
If the vehicle is in a location that may be hazardous when an active regeneration
begins (i.e., in close proximity to flammable materials or gases), the regeneration
should be stopped by pushing the DPF switch to the "Stop Regeneration" position.
If an active regeneration is stopped by the vehicle operator, it should be initiated at
a later time when the vehicle is in a safe location. However, if an active regeneration
is stopped repeatedly, the vehicle may need to be taken to a MACK service facility.
The service facility will use a service tool to manually initiate the regeneration.