Operating Instructions Particulate Filter Crt - Volvo FM Driver's Handbook Manual

Operating Instructions
TM
Particulate filter CRT
Important! This vehicle is equipped with a particulate filter which requires that a fuel with
a low sulphur content (less than 50 ppm = 0.005% sulphur) is used. Use of fuel with a
higher sulphur content or mixing in other fuel can destroy the particulate filter in a short time.
Normally it is not necessary to take into consideration the fact that the vehicle has a particu-
late filter. Long periods of driving (several hours) with a low engine load or long periods of
idling can, however, cause problems in that the soot in the filter does not burn due to low ex-
haust temperature.
The particulate filter greatly reduces the emission of particulates (PM), hydrocarbons (HC)
and carbon monoxide (CO).
A proportion of the nitrogen oxides (NO ) in the exhaust gases from the engine are converted
x
in the catalytic converter to nitrogen dioxide (NO ), which helps to burn the soot particulates
2
which are caught by the filter. The total content of NO remains unchanged, but the propor-
x
tion of NO increases.
2
NO can, in moderate concentrations, irritate the respiratory passages and aggravate asthma.
2
However, the particulate filter does contribute to a considerably improved environment on ac-
count of its capacity to considerably reduce the quantity of particulates, hydrocarbons and
carbon monoxide.
Important! The fact that the vehicle is equipped with a particulate filter does not mean that
it can be used in some other way than a vehicle without a particulate filter. The exhaust gases
are still not healthy to breathe in, i.e., make sure that there is ventilation when the vehicle is
idling. An exhaust extractor hose must be connected to the exhaust opening if the engine is
to be driven in an enclosed space.
Important! With each oil change the filter insert should be taken out, cleaned and turned.
Contact a Volvo workshop for service.
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