TUBE 3728016 - Caterpillar

2. Loosen two rod assemblies (2), and remove cover assembly (1) and the primary air filter element. 3. Remove eight nuts (6) and secondary air filter element (5) from air cleaner housing (3).4. Remove two 12 point bolts (4), and remove air cleaner housing (3) from the elbow. The following steps are for the installation of the air cleaner element assembly.5. Position air cleaner housing (3) on the elbow, and install two 12 point bolts (4) that hold it.6. Position secondary air filter element (5) on the studs, and install eight nuts (6) that hold it.7. Install the primary air filter element and cover assembly (1). Tighten two rod assemblies (2).8. Install the hood on the tractor.