Selective Catalytic Reduction (Scr) - Basic Instructions - New Holland W190C Tier 4 Service Manual

SELECTIVE CATALYTIC REDUCTION (SCR) - BASIC INSTRUCTIONS

Requirements
T h e o p e r a t o r m u s t m a i n t a i n a p p r o p r i a t e
DEF/AdBlue® levels at all times. The SCR system is
compatible with up to 7% bio-diesel fuel.
Diesel Exhaust Fluid (DEF)/AdBlue®
refilling
The DEF/AdBlue® tank cap (1) can be identified by
the "blue" color of the cap. A fitting under the cap
prevents the insertion of a diesel fill nozzle.
NOTE: If any DEF/AdBlue® spills or contacts any
surface other than the storage tanks, immediately
clean the affected surface with
DEF/AdBlue® will cause corrosion on painted and
unpainted metallic surfaces, and may distort some
plastic and rubber components.
It i s r e c o m m e n d e d t h a t D E F /A d B l u e ® f i l l i n g
equipment should be used having a fill nozzle/pump
with the correct length and diameter, triggered by the
magnet in the tank filler neck and with overfill flow cut
out.
This will ensure that:
• The screen in the filler neck will not be damaged.
• Impurities are not entering the DEF/AdBlue® tank.
The st andardized DEF/ AdBlue® no zzle matches
the filler neck diameter.
• The DEF/AdBlue® tank is not o verfilled, as the
DEF/AdBlue® pump will stop when
DEF/AdBlue® tank is full.
• DEF/AdBlue® is n ot pu mped in th e f uel t ank, as
the DEF/AdBlue® no zzle can not pu mp when th e
magnet is not sensed.
NOTICE: Refilling with a funnel is not recommended
as this may lead to damage of the screen in the filler
neck.
NOTE: The information above has been provided by
the International Organization for Standardization
(ISO), Document number ISO 22241-4 Diesel
engines - NOx reduction agent AUS 32 - Part 4:
Refilling interface.
Diesel Exhaust Fluid (DEF)/AdBlue®
consumption
NOTE: DEF/AdBlue®
dependent
DEF/AdBlue® fluid concentration, and engine speed.
The "typical" consumption is only a guideline to verify
proper
recommends to fill the DEF/AdBlue® tanks at every
fuel refilling interval.
clear water.
the
consumption
on engine loads,
function of the SCR
1002-9
is highly
humidity levels,
system. CNH