Access Diesel Exhaust Fluid (DEF) Dosing Unit and Tank Vent Filters - FT4/Stage IV Engines

1. 
   RXA0135317-UN-28AUG13

   
   RXA0135318-UN-29AUG13

   A - Shield Cap Screws (7 used)

   B - Shield

   C - DEF Dosing Unit Filter

   D - DEF Tank Vent Filter

   Remove cap screws (A) and shield (B).

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2. Diesel exhaust fluid (DEF) dosing unit filter (C) is located on bottom of dosing unit

3. DEF tank vent filter (D) is located just above dosing unit.

4. Install in reverse order. Tighten to specification.

   Item	Measurement	Specification
   Shield Cap Screws	Torque	37 N·m (27 lb.-ft.)