TM 55-1930-209-14&P-19 Section II 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 SEAWATER SYSTEM WARNINGS Be sure electrical power is OFF before performing-any maintenance or repair on this system.  OPEN circuit breakers. Redtag circuit breakers or motor con- troller with "WARNING - DO NOT ACTIVATE.  REPAIRS BEING MADE." Observe safety precautions listed at the beginning of this manual and in manu- facturers' manuals/instructions. High voltages and hazardous materials are used in the operation of this equipment. The power supply to the equipment must be shut off before performing PMCS. NOTE Open (OFF) switchboard circuit breakers: a. ROWPU 1 and 2 control station- switchboard circuit breakers P6 and P7 are open (OFF). b. Cooling pump controller-power panel 1 circuit breaker 1 P5 is open (OFF). 1      All Components a. Wipe components clean, especially gauges and control panels (void 2 starboard)    b. Check for leaks, paying special atten- Class III leaks. tion to all joints, valves, fittings and piping.  Report leaks to shift leader or bargemaster for corrective action.    c. Check for damage, especially to Pressure gauge pressure gauges, filters and control inoperable. panels. 2-10