STEP 3480617 - Caterpillar

Illustration 1 g02672517
Area to left of operator seat base shown. Seat assembly removed to enhance visibility.
Unscrew fastener (1) to cover of recirculation filter (2) and remove the cover. Remove the recirculation filter element. Access to the filter can be improved by sliding the seat fully forward.
Personal injury can result from air pressure.Personal injury can result without following proper procedure. When using pressurized air, wear a protective face shield and protective clothing.Maximum air pressure at the nozzle must be less than 205 kPa (30 psi) for cleaning purposes.
The recirculation filter element can be cleaned by using pressurized air. Use a maximum air pressure of 205 kPa (30 psi). Direct the air from the clean side to the dirty side.
Look through the filter toward a bright light. Inspect the element for damage. Inspect the gaskets for damage. Replace damaged filters.
Install the recirculation filter element. Make sure that the filter element is centered. If the filter is not centered, the system will not function properly.
Install the filter cover and secure with the fastener. Note: Clean the filters more often in dusty conditions.