Volvo D13J, Руководство водителя

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44 VOLVO Engines
Diesel Exhaust Fluid (DEF)
Diesel Exhaust Fluid (DEF) is a reactant that's key to the SCR process. It's a nontoxic,
aqueous solution of 32.5% urea and 67.5% water. Urea is a compound of nitrogen that turns
to ammonia when heated. It is used in a variety of industries, perhaps most commonly as
a fertilizer in agriculture. The fluid is not flammable, nor is it dangerous when handled
normally. However, it is corrosive to metal, particularly copper and aluminium. Read the
separate section concerning the handling of DEF solution.
Diesel Exhaust Fluid (DEF) Handling
When handling DEF solution, it is important that electrical connectors to be connected or
well encapsulated. Otherwise there is a risk that the DEF will cause oxidation that cannot
be removed. Water or compressed air do not help, since DEF quickly oxidizes metal. If a
connector comes into contact with the DEF solution it must be replaced immediately to
prevent the DEF solution from creeping further into the copper wiring, which takes place at
a speed of about 60 cm (2.4 in) per hour.
CAUTION
When detaching hoses and components, do
not spill DEF on disconnected connectors.
If DEF is spilled on a connector, the
connector must be replaced immediately
W2059485
DEF Only Decal