TM 55-1930-209-14&P-19 Table 2-4.  Preventive Maintenance Checks and Services for Seawater System (Continued) B - Before D - Daily Q -  Quarterly D - During W - Weekly S -  Semiannually A - After M - Monthly A -  Annually INTERVAL ITEM PROCEDURES EQUIPMENT ITEM TO BE CHECK FOR AND HAVE IS NOT READY/ NO. INSPECTED REPAIRED OR ADJUSTED AVAILABLE IF B   D   A   D  W  M   Q   S   A AS NECESSARY Pull basket handle straight up to remove basket. CAUTIONS Do NOT leave basket well open for more than 10 minutes.  Diverter plug does not completely cut off water and water will seep into open well. Do NOT use any petroleum based products to clean basket.  Be careful not to damage basket.  Do not use wire brush. Clean basket on weatherdeck with soft brush and flush with drinking water. WARNINGS DO NOT use compressed air to clean clothing or work space.  High pressure (HP) air turns small particles into danger- ous projectiles that may injure people. When using compressed air to clean equipment, ALWAYS use protective shield to protect eyes and face from fly- ing particles.  Wear gloves and avoid skin damage by closing buttons and collars and rolling down shirt sleeves on work clothing. Use compressed air to discharge difficult particles. Flush with drinking water. Wipe interior of basket with clean cloth before reinstalling. 3)   To replace strainer basket: Lower cleaned or new basket into well. Swing yoke over basket well until end fits over stud. 2-12