7-31
AFTERTREATMENT DIESEL EXHAUST FLUID
AFTERTREATMENT DIESEL EXHAUST FLUID
DOSING UNIT FILTER
DOSING UNIT FILTER
Remove
Remove
There may be residual DEF in the filter
There may be residual DEF in the filter
housing. A collection container placed below
housing. A collection container placed below
the DEF filter cap is recommended.
the DEF filter cap is recommended.
Unscrew the DEF filter cap (1). A 27 mm wrench
can be used on the cap to aid in removal.
Remove the aftertreatment DEF filter equalizing
element (2).
Remove the old aftertreatment DEF dosing unit
filter element (3). A disposable service tool is
included with the filter to aid in filter removal.
Use the appropriate end of the tool, depending
on the color of the plastic on the filter. When
inserting the tool, a "click" sound can be heard
which indicates proper engagement with the
filter.
If the filter element and equalizing element
If the filter element and equalizing element
are removed from the aftertreatment DEF
are removed from the aftertreatment DEF
dosing unit, they must be discarded and
dosing unit, they must be discarded and
replaced; regardless of condition.
replaced; regardless of condition.
14)
14)
(1)
(1)
※
①
②
③
※
1
2
3
250D9DEF01
1 DEF dosing unit filter cap
2 DEF filter equalizing element
3 DEF dosing unit filter element
Clean and inspect for reuse
Clean and inspect for reuse
Inspect the aftertreatment DEF dosing unit filter
cap for cracks or holes that could create a DEF
leak path.
Check the condition of the threads on the
aftertreatment DEF dosing unit cap.
If the threads are damaged, replace the
If the threads are damaged, replace the
aftertreatment DEF dosing unit filter cap.
aftertreatment DEF dosing unit filter cap.
Inspect the aftertreatment DEF dosing unit
threads. This is especially important if the
aftertreatment DEF dosing unit cap was
damaged.
If the aftertreatment DEF dosing unit threads
If the aftertreatment DEF dosing unit threads
a r e d a m a g e d , r e p l a c e t h e e n t i r e
a r e d a m a g e d , r e p l a c e t h e e n t i r e
aftertreatment DEF dosing unit.
aftertreatment DEF dosing unit.
①
②
※
③
※
250D9DEF02
(2)
(2)
