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TM 10-5430-232-12&P
Key
Control or
Function
Indicator
1
Gate Valve
Shuts fuel flow on and off
between the tank and any other
portion of the system.
2
Vent and Pipe Assembly
Allows relief cap to open
automatically when the tank
vapor reaches an internal
pressure of 0.1 psi (0.0068
atmospheres).
3
Drain Valve
Allows residual fuel, sludge, or
water to be drained from the tank
when needed.
SECTION II. OPERATOR PREVENTIVE MAINTENANCE
CHECKS AND SERVICES (PMCS)
2-2. GENERAL
Preventive Maintenance Checks and Services (PMCS) means systematic caring, inspecting, and
servicing of equipment to keep it in good condition and to prevent breakdowns. As the tank operator, your
mission is to:
a. Be sure to perform your PMCS each time you operate the tank. Always do your PMCS in the same
order, so it gets to be a habit. Once you've had some practice, you'll quickly spot anything wrong.
b. Do your BEFORE (B) PMCS just before you operate the tank. Pay attention to WARNINGs,
CAUTIONs, and NOTEs.
c. Do your DURING (D) PMCS while you operate the tank. During operation means to monitor the tank
and its related components while It is actually being operated. Pay attention to WARNINGs, CAUTIONs, and
NOTEs.
d. Do your AFTER (A) PMCS right after operating the tank. Pay attention to WARNINGs, CAUTIONs,
and NOTEs.
e. Do your WEEKLY (W) PMCS once a week.
f. Do your MONTHLY (M) PMCS once a month.
g. Use DA Form 2404 (Equipment Inspection and Maintenance Worksheet) to record any faults that you
discover before, during, or after operation, unless you can fix them. You DO NOT need to record faults that
you fix.
h. Be prepared to assist unit maintenance when they maintain the tank. Perform any other services
when required by unit maintenance.
2-2
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