TM 10-5430-243-12&P 0010 00 0010 00-7/8 blank Change 1 Table 1.  Operator Preventive Maintenance Checks and Services For 20,000 and 50,000 Gallon Collapsible Water Storage Tanks (continued). ITEM NO. INTERVAL MAN- HOUR ITEM TO BE CHECKED OR SERVICED PROCEDURE EQUIPMENT NOT READY/ AVAILABLE IF: 23 After Repair Kit (9) Check for missing components. Repair items are missing. 24 Weekly Filler/Discharge Assembly, Hose Attachments and Couplings (1, 4) Inspect for damage, leakage, and loose or missing gaskets. Fittings or hose attachments are damaged, loose or leaking, or gaskets are missing. 25 Weekly Tank (2) Inspect for cuts, punctures and leaks. Tank is cut, punctured or leaking. 26 Weekly Vent Fitting Assembly (3) Inspect vent fitting assembly vent flap for movement.  Inspect vent pipe assembly for leakage. Vent flap sticks or binds.  Vent pipe leaks or is damaged. 27 Weekly Gate/Ball Valve Assembly (8) Check for proper operation and leakage. Gate/ball valve leaks or will not open/close. 28 Weekly Repair Kit (9) Check for missing components.  Make sure instruction information is present. Repair items are missing. 29 Semi- annually Tank Interior (not shown) Check interior tank coating for cracking. Coating is cracked, allowing leakage. END OF WORK PACKAGE