TM 10-5430-236-12&P 0006 00 0006 00-4 Table 1.  Preventative Maintenance Checks and Services ITEM NO. INTERVAL MAN- HOUR ITEM TO BE CHECKED OR SERVICED PROCEDURE EQUIPMENT NOT READY/ AVAILABLE IF: 4 Before Berm Liner Drain Hose Assembly (4) a. Inspect hoses for punctures or tears. b. Inspect hose coupling halves for damaged or missing gasket. Puncture or tear found. Damaged coupling halves, missing or damaged gasket. 5 Before Berm Liner Drain Gate Valve Assemblies (5) a. Check for loose or missing hand wheels, missing screws, and nuts. b. Open and close valves.   Valve should move freely. Hardware loose or missing. Valve sticks or binds. 6 Before Tank (6) Inspect for damaged or missing dust caps.   Check dust caps for damaged or missing gaskets. Dust caps damaged or missing.  Gaskets damaged or missing. 7 Before Vent Fitting Assembly (7) a. Inspect vent fitting coupling half for cracks and damaged locking arms. b. Inspect for damaged or missing coupling half gasket. c. Lift relief cap and check for free movement.  Inspect for cracks, bends, and bent or broken pivot pin. d. Inspect pipe for cracks or damage. e. Inspect for loose or missing screws on fittings. Coupling half cracked.  Locking arms damaged. Coupling half gasket damaged or missing. Relief cap binds or is damaged. Pipe is cracked or is damaged. Screws loose or missing.