Diesel Exhaust Fluid (DEF) Dosing Filter—Replacing (Final Tier 4/Stage IV)

1. 

   
   H107491-UN-15APR13

   
   H107492-UN-15APR13

   A - Cap

   B - Equalizing Filter

   C - Filter

   D - Filter Tool

   Diesel Exhaust Fluid (DEF) contains urea. Do not get fluid in eyes. In case of contact, immediately flush eyes with large amounts of water for a minimum of 15 minutes. In event fluid is ingested, contact a physician immediately. Reference Materials Safety Data Sheet (MSDS) for additional information.

   Shut OFF engine, set park brake and remove key before performing maintenance work.

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

   Shut OFF engine, set parking brake and remove key.

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2. Remove and retain cap (A).

3. Remove and discard equalizing element (B).

4. Check inside of filter (C) for color code (gray or black).

5. Insert same color end of filter tool (D) into filter until a click is felt or heard. This indicates filter tool is fully engaged.

6. If necessary, a tool such as a screwdriver can be inserted into slot of filter tool to assist in removal.

   Pull filter tool to remove filter from dosing unit.

7. Discard filter and filter tool.

8. Clean dosing unit threads and mating surfaces with distilled water.

9. Lubricate new filter O-rings with clean engine oil.

10. Insert filter and new equalizing element into dosing unit.

11. Install cap and tighten to specification.

    Cap	Torque	20 N·m (177 lb.-in.)