TM 9--2350--292--20--10187 00--1530187 00PREVENTIVE MAINTENANCE CHECKS AND SERVICES INCLUDINGLUBRICATION INSTRUCTIONS -- CONTINUEDTABLE 3 PREVENTIVE MAINTENANCE CHECKS AND SERVICESINCLUDING LUBRICATION INSTRUCTIONS, SEMIANNUALLY -- CONTINUEDITEMNO.NOT FULLYMISSIONCAPABLEIF:PROCEDURELOCATIONITEM TOCHECK/SERVICEINTERVALSEMIANNUALLYEXTERIOR61Drain Valves andDrain ValveSealsa. Operate drain valve lever (1)(TM 9--2350--292--10) to ensure freeoperation of two drain valves (2 and 3)(located at front and rear of underside ofhull). Drain valves (2 and 3) should sealcompletely when closed.b. Inspect drain valves (2 and 3) bearingsurfaces for nicks, dents, scored bearingsurface and out of roundness.NOTEWhenever nose piece isremoved, clean front drain valvescreen.c. Clean drain valves (2 and 3) screens.Anyimproperlysealed ordamageddrain valveorcomponents.FORWARD123
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