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 k. After each use with contaminated water or salt water, wash down and flush out the pump with clean, non-contaminated, fresh water as follows: 1) Mix 2 cans BIA-TC-W service oil (NSN 9150-00-117-8791) and 6 gal of 90 octane gasoline in fuel tank. 2) Connect fuel hose to engine. 3) Connect fittings and hose to suction, discharge, and exhaust connections. 4) Place suction hose with foot valve and strainer into fresh water supply. 5) Prime pump until full, inspect for leaks. 6) Shut discharge valve. WARNING Ensure exhaust gases discharge to out- side atmosphere. 7) Start engine. Switch to start, advance speed slightly, pres start button, choke as necessary. 8) Prime pump; push priming button and hold, when water discharges from priming pump; ensure discharge hose is manned; open water discharge valve slowly. Release priming button. NOTE Primer pump should evacuate air from impeller housing and suction hose in approximately 60 seconds. CAUTION Do not operate pump more than 2 minutes unless pressure shows on gauge or priming pump discharges water. 17-36