HUB 1368633 - Caterpillar

Storage Of Items
1. Long-term storage of rotary joint is limited to 12 months. As a rule, rotary joint stored in excess of this must be overhauled. All seals must be replaced and all parts must be checked for rust or other defects.2. Store rotary joint horizontally as shown in the figure.3. Put rotary joint into service only after checking for oil leakage from seals and other likely trouble during operation if storage has been for a period of 6 to 12 months.4. Select an appropriate place to store rotary joint, such as a dry, clean place that is not exposed to the weather or direct sunlight. Not that rotary joint will require overhauling much earlier if stored in unsatisfactory circumstances.5. Rust preventive treatment must be given to rotary joint before storing as follows:Cleaning1. Remove dust, dirt and moisture with a clean cloth. Take necessary steps to remove rust if items gather rust.2. Use cleaning agent (petroleum solvent) to completely remove grease.3. Use methyl alcohol or fingerprint remover (NP-0, JIS Z1804 or equivalent) to remove finger marks and made surface completely clean.4. Clean by brushing or wiping with a cloth.5. Do not attempt to clean coated parts, parts using rubber or other materials or parts affected by solvents.Internal prevention1. Clean volatile rust preventive agent (NP-20-1, JIS Z1806 class 1 or equivalent) must be filled and closed with polyethylene plugs to prevent rust due to sweating.External rust preventionProtect noncoated parts from rust as follows:1. Apply a coat of rust preventive grease (NP-19, JIS Z1801 class 4 or equivalent) by brushing on mounting flange and port flange. Give an even coat of rust preventive oil to other parts.2. Cover finished items with vinyl sheet or VPI paper after coating with rust preventive compound. Store items in a well-ventilated place. Tape up covers if necessary.Storage Of Parts
Storage of metal parts1. Rust prevention method Clean parts as shown in above and apply a coat of rust preventive grease (NP-19, JIS Z1801 class 4 or equivalent) by brushing. Cover the finished parts with vinyl sheet or VPI paper after they are coated with rust preventive compound. Tape up covers if necessary.2. Storage method Place antirust treated parts on shelves individually for storage. Never place parts on top of each other for storage.Storage of rubber parts1. Storage method Store O-ring and other rubber parts in a place free from exposure to direct sunlight or high temperature.2. Storage period The storage period is limited to a maximum of 12 months. Do not use parts stored in excess of 12 months.