TM 10-4930-204-13SECTION V.REPAIR OF TANK ASSEMBLY5-25.GENERAL.The tank and tank components must be cleaned before any repair isinitiated.Each time a major componentis removed for repair, in-spection or other service, all parts must be thoroughly cleaned.Clean the discharge valve each time the tank is drained.Clean thetank interior and exterior prior to repair.Remove and repair thefollowing tank components prior to repairing the tank shell.5-26.MANHOLE ASSEMBLY.a.RemovalandDisassembly.(1) Remove screws (1, fig. 5-16) and vent body cap (2) fromfiller plug (3).(2) Lift filler plug and remove vent assembly (4) and cover gasket (5).(3) Remove capscrew nuts (10), capscrews (9), filler plug(3), latch (6), latch lock (7), and spring (8).(4) Remove cotter pin (14), wingnut (17), washer (16), andlug (15) from bolt (13) and lift manhole cover (11) and gasket (12)from tank assembly.b.Cleaning andInspection.Drycleaning solvent normally has a flash pointof either 100 or 138 degrees F, depending on thetype being used, but may flash at much lower tem-peratures if contaminated with gasoline or jetfuel.Avoid repeated and prolonged skin contact.Do not use near open flame or excessive heat.(1) Clean parts with drycleaning solvent (item 1, App. F).Immerse each part in solvent and remove contaminants by brushing.Allow parts to dry thoroughly.(2) Inspect all parts, including gaskets, for damage ordefects.Replace any damaged or defective parts.(3) Coat parts with a thin film of light lubricating oil(item 5, App. F) before assembly.5-36
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