Emergency Dump Valve Assembly

TM-10-4930-220-13P Tank Unit 600 Gallon Liquid Dispensing for Trailer Mounting (Advance Model TRL 1000 and TRL 1616) Manual
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4-14 TM 10-4930-220-13&P Clean parts in a well ventilated area. Avoid inhalation of solvent fumes and pro- longed exposure of skin to cleaning solvent. Wash exposed skin thoroughly. Dry cleaning solvent used to dean parts is potentiality dangerous to personnel and property. Do not use near open frame or excessive heat. Flash point of solvent is 100°F. (38°C. to 50°C.). Wear eye protection when blowing solvent from parts. Compressed air used for cleaning purposes should not exceed 30 PSI (2.1 kg/cm). Entry into the tank is prohibited unless the tank has been thoroughly purged, and the at- mosphere has been tested for air contaminants and oxygen deficiency by technically qual- ified personnel. b. Inspection, Cleaning and Replace. (1) Remove manhole cover (para 4-11) (2) Pull control lever (1) to “close” position and remove dust cap (14). NOTE Testing to determine if tanks are safe for entry will be performed only by tech- nically qualified safety or health personnel. (3) (4) (5) (6) (7) (8) (9) (1 o) (11) Perform pre-entry testing for air contaminants and oxygen deficiency by technically qualified per- sonnel. Enter tank through manhole opening. Loosen eye nut (7), disengage lift rod (8) from eye nut and remove lift rod. Outside the tank, remove six nuts (16) and six washers (17) holding valve to sump ring (11) and remove valve assembly. Transfer parts to a well ventilated area outside the tank. Clean all parts with an approved cleaning solvent and dry thoroughly. Inspect all parts for breaks, cracks and other damage. Replace damaged valve assembly. Position valve body on sump ring (11) and install six washers (17) and six nuts (16). Inside the tank place lift rod (8) in eye nut (18) and tighten eye nut. Reinstall manhole cover (para 4-11). 4-15. Hose Assembly. This task covers: a. Inspection b. Cleaning c. Replace INITIAL SETUP Tools Tool Kit, General Mechanic’s (Appendix B, Section III, item 2) Materials Cleaning Solvent (Appendix E, Section II, item 1) Rags, Wiping (Appendix E, Section II, item 3) a. General. The hose assembly is used to connect the tank unit to the dispensing nozzle.

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