5-28. DRAIN VALVE ASSEMBLY

Figure 5-16. Manhole Assembly, Removal, Disassembly, Reassembly, and Installation.

Figure 5-17. Pump Port, Removal and Installation

TM-10-4930-204-13 Tank and Pump Unit Liquid Dispensing for Truck Mounting (United Manufacturing and Engineering Corp. Model Style 1) Manual
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TM 10-4930-204-13 Legend for figure 5-16: 1. Setscrews 2. Vent body cap 10. 11. 3. Filler plug 12. 4. Vent assembly 13. 5. Cover gasket 14. 6. Latch 15. 7. Latch lock 16. 8. Spring 17. 9. Capscrew Capscrew nut Manhole cover Manhole cover gasket Bolt Cotter pin Lug Washer Wingnut (2) Install tube (2) and dipstick (1). (3) Install manhole cover (para 5-26). 5-28. DRAIN VALVE ASSEMBLY. a. Removal and Disassembly. (1) Remove manhole cover (para 5-26). (2) Remove setscrew (1, fig. 5-18) and pin (2) and pull out rod and handle (3). (3) Remove control rod packing nut (4) and support (5). (4) Remove collar (6) and key (7). (5) Unscrew drain valve handle (8) and elbow (9) from valve packing (8). (6) Remove valve (10) and nipple (11). b. Cleaning and Inspection. Drycleaning solvent normally has a flash point of either 100 or 138 degrees F, depending on the type being used, but may flash at much lower tem- peratures if contaminated with gasoline or jet fuel. 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) Straighten bent rod and handle. If rod and handle is not repairable, replace it with a serviceable one. 5-39

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