NOTE: Do not allow oil to contact rubber toric rings (2) or seal ring ramps (7) before both seal rings (1) are assembled in Step 10. We offer a complete line of Cat ® seals from 25 mm to 940 mm (1 inch to 37 inches) to serve your needs and we design new seals to address customers needs. Use isopropyl alcohol and clean cloth to wipe the components. Remove any oil film, dust or other foreign matter from all of the seal components. Keep isopropyl alcohol away from heated surfaces exceeding 482☌ (900☏). Do not use near an open flame or near welding operations. Do not smoke while using isopropyl alcohol. Avoid prolonged skin contact with isopropyl alcohol. Use caution when using isopropyl alcohol. Many seal failures am the direct result of mistakes during installation of the seal components. It is extremely important to follow the correct procedure for installing Duo-Cone seals. This procedure does not pertain to Duo-Cone floating seals. TM 5-3895-383-24 Disassembly & Assembly Assembly & Installation Of Conventional Duo-Cone Seals Assembly And Installation Of Conventional Duo-Cone Seals 7561-016,012 Introduction NOTE: This introduction is only for Duo-Cone conventional seals.