TM 55-1930-209-14&P-19 Table 17-4.  Preventive Maintenance Checks and Services for Workboat, Lifesaving, and Firefighting 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 6) Loosen the stator assembly mounting screws through the holes in the fly- wheel. To correct timing, rotate the stator assembly as required (clock- wise to retard the timing; counter- clockwise to advance the timing). 7) Tighten the stator assembly mounting screws. 8) Install lower fan pulley, fan belt, and secure with three hexhead bolts. 9) Install retractable starter and secure with three hexhead bolts. 10) Remove the "OUT OF SERVICE" tag. s. Check the water seal annually or when Class III leaks. the water seal is leaking, as follows: 1) Shut down the pump and tag "OUT OF SERVICE." WARNING Water seal is spring loaded. 2) Remove section head and hose adapter assembly. 3) Remove and discard gasket. 4) Remove impeller screw, washer, and impeller seal. 5) Screw a 5/8-11 X 2-1/2 in long hex head bolt into impeller untilsnug, then continue screwing in bolt until impeller comes free. 6) Remove water seal and inspect for Seal is worn or wear and/or defects. damaged. 7) If damge is indicated, install new water seal. 17-43