TM 55-1930-209-14&P-2 Table C-1.  Preventive Maintenance Checks and Services for Seawater System (Continued) B - Before D - During A - After D - Daily W - Weekly M - Monthly Q - Quarterly S - Semiannually A - Annually ITEM PROCEDURES EQUIPMENT ITEM INTERVAL 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     d.    Check for loose or missing securements Securements and fasteners.  Tighten and replace as and/or fasteners necessary. loose or missing. 2 Wiring a. Check wiring for loose connections and Cables frayed. frayed cables.  Secure as necessary. Repair or replace damaged cables using insulated tools b.    Visually check wiring for loose connec- Connections tions.  If sparks are visible, immediately loose. stop operation and report to shift leader or bargemaster. 3     Seawater a.    Ensure that seawater strainer baskets Strainer (void 2 port and starboard) are dean and properly installed. b.    Change flow, remove and clean, or replace as follows. 1)  To change flow.  Loosen diverter plug locking flange by turning locking T-bolt handle/ handlewheel counterclockwise.  Turn handle toward clean basket until it stops. CAUTION Never operate strainer with diverter plug unseated.  Sediment may collect under plug and prevent a tight seal causing damage to equipment.  Tighten locking flange by turning locking T-bolt handle/handlewheel clockwise to seat diverter plug.  Do not overtighten. 2)  To remove and clean seawater basket:  Loosen yoke screw until yoke swings free. C-4