MacDon M1170 - Page 349

214733 333 Revision A
1. Stop the engine and remove the key. Wait 3 minutes for DEF system to complete purge cycle.
2. Place a catch basin under DEF filter cap to collect the remaining DEF in the filter housing.
1012012
A
B
C
D
Figure 5.119: DEF dosing unit Filter
3. Unscrew the filter cap (A).
4. Remove the aftertreatment DEF filter equalizing
element (B).
5. Remove the old aftertreatment DEF dosing unit filter
element (D).
NOTE:
A disposable service tool (C) is included with the filter to aid
in filter removal. Use the appropriate end of the tool to
remove filter. When inserting the tool, a click sound can be
heard which indicates proper engagement with the filter.
6. Discard and replace the filter and equalizing element if
removed from the aftertreatment dosing unit.
MAINTENANCE AND SERVICING