7 - MAINTENANCE
Selective Catalytic Reduction (SCR) main components
Supply Module (SM)
The Supply Module (SM)
(1)
contains a pump which with-
draws the
DEF/A
D
B
LUE
®
fluid from the
DEF/A
D
B
LUE
®
tank
(2)
. The
DEF/A
D
B
LUE
®
fluid is then directed to the
dosing module connected to the Diesel Oxidation Catalyst
(DOC).
LEIL14WHL0009AB
2
Diesel Oxidation Catalyst (DOC)
The Diesel Oxidation Catalyst (DOC)
(1)
converts part of
the NO to NO
2
. The DOC is required to achieve as close
as possible 50%/50% NO
2
/NO
x
ratio before the SCR. The
presence of NO
2
increases the NO
x
conversion efficiency
of the SCR catalyst. The
DEF/A
D
B
LUE
®
fluid is injected in
the DOC by the dosing module
(2)
connected to the DOC.
LEIL14WHL0010AB
3
7-24
Содержание 621G Stage IV
Страница 42: ...2 SAFETY INFORMATION Empty tool LEEN11T0024AA 20 2 22 ...
Страница 60: ...2 SAFETY INFORMATION 2 40 ...
Страница 137: ...3 CONTROLS AND INSTRUMENTS Inducement and validation re starts LEIL14WHL0394HA 2 3 77 ...
Страница 138: ...3 CONTROLS AND INSTRUMENTS Validation re start procedure LEIL15WHL0608HA 3 3 78 ...
Страница 150: ...3 CONTROLS AND INSTRUMENTS 3 90 ...
Страница 166: ...4 OPERATING INSTRUCTIONS RCPH10WHL045BAH 7 4 16 ...
Страница 168: ...4 OPERATING INSTRUCTIONS RCPH10WHL045BAH 9 4 18 ...
Страница 170: ...4 OPERATING INSTRUCTIONS RCPH10WHL045BAH 12 4 20 ...
Страница 208: ...6 WORKING OPERATIONS 6 18 ...
Страница 227: ...7 MAINTENANCE DEF AdBlue level faults failures and engine power loss levels LEIL15WHL0607HA 2 7 19 ...
Страница 228: ...7 MAINTENANCE DEF AdBlue quality faults failures and engine power loss levels LEIL15WHL0609HA 3 7 20 ...
Страница 229: ...7 MAINTENANCE DEF AdBlue technical faults LEIL14WHL0392HA 4 7 21 ...
Страница 370: ...7 MAINTENANCE 7 162 ...