Replace Diesel Exhaust Fluid (DEF) Dosing Filter—4500 Hours or Three Years

CAUTION: DEF contains urea. Do not get the substance in eyes. In case of contact, immediately flush eyes with large amounts of water for a minimum of 15 minutes. Do not take internally. In event DEF is ingested, contact a physician immediately. Reference Materials Safety Data Sheet (MSDS) for additional information.

IMPORTANT: If DEF is spilled or contacts any surface other than storage tank, immediately clean surface with distilled water. DEF is corrosive to painted surfaces and can distort some plastic and rubber components.

Spilled DEF, if left to dry or if only wiped away with a cloth, leaves a white residue. Improperly cleaned DEF spill can interfere with diagnosis of Selective Catalytic Reduction (SCR) system leakage problems.

1. 
   N103389-UN-15MAY13

   
   N103388-UN-15MAY13

   A - Cap

   B - Equalizing Element

   C - Filter Tool

   D - Filter

   Remove and retain cap (A).

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2. Remove and discard equalizing element (B).
3. Check inside of filter for color code (black or grey).
4. Insert same color end of filter tool (C) into filter (D) until a click is felt or heard. This indicates tool is fully engaged.
5. NOTE: If necessary, a tool such as a screwdriver may be inserted into slot of filter tool to assist in removal.
   Pull filter tool to remove filter from dosing unit.
6. Discard filter and tool.
7. Clean dosing unit threads and mating surfaces with distilled water.
8. Lubricate new filter O-rings with clean engine oil.
9. Install filter and new equalizing element.
10. Install cap and tighten to specification.

    Item	Measurement	Specification
    Filter Cap	Torque	23 N·m (204 lb.- in.)