Exhaust Aftertreatment System - Volvo 9700 US/CAN Driver's Handbook Manual

Exhaust Aftertreatment System

Volvo 9700 has an exhaust aftertreatment
system which includes a Diesel Particulate
Filter (DPF) and Selective Catalytic
Reduction unit (SCR). These components
are part of the overall vehicle emissions
control system. In normal operation,
these components can experience surface
temperatures as high as 350° C (662° F). It
is important to periodically check to ensure
there are no trapped material or substances
between the DPF/SCR and the cover or
shield. Failure to do so may result in fire.
New stringent standards for exhaust
emissions control begin with the US 2010
engine model year. The Diesel Particulate
Filter (DPF) system has been developed
to act in combination with ultra low sulfur
diesel (ULSD) fuel to reduce particulate
emissions to meet the requirement. The
Exhaust After-Treatment System (EATS)
includes all the engine and exhaust emissions
control components that are required to meet
the stringent US 2010 standard.
Starting and Driving 95
DANGER
The DPF/SCR cover should not be
removed while the vehicle is in use.
Also, only remove the cover, once the
vehicle is out of use and the SCR/DPF is
sufficiently cooled. Failure to follow these
instructions can result in fire, which can
cause component damage, personal injury
or death.