Table 2-1. Operators Controls and Indicators
Control or indicator
Range adjustment valve
Inlet shutoff cock
1/4-inch globe valve
Solution feed pump stroke
Outlet shutoff cock
Hypochlorite solution shutoff
Used to set waterflow required to operate hypochlorination unit.
Used to start/stop operating waterflow to hypochlorination unit.
Automatically controls flow of operating water in hypochlorination unit.
Used to refill reservoir tank with water.
Used to monitor water pressure in hypochlorination unit.
Micrometer adjustable, used to limit amount of hypochlonte solution injected
into water supply.
Used to start/stop operating waterflow to manifold.
Used to close manifold to flow of hypochlorite solution.
Section Il. OPERATOR PREVENTIVE MAINTENANCE
CHECKS AND SERVICES (PMCS)
2-2. GENERAL. Do the checks and services at the intervals shown, using the following as a guide:
a. Do your before (B) preventive maintenance just before you operate your equipment. Pay attention to
warnings and cautions.
b. Do your (D) preventive maintenance while the equipment is in operation.
c. Do your after (A) preventive maintenance right after operating the equipment. Pay attention to warnings
d. Do your weekly (W) preventive maintenance once a week.
e. Always do your preventive maintenance in the same order.
2-3. PMCS PROCEDURES.
a. Preventive Maintenance. Operators preventive maintenance checks and services (PMCS) is the
required daily and weekly inspection and care of your equipment necessary to keep it in good operating
b. Routine Checks. Routine checks like equipment inventory, cleaning, dusting, washing, checking for
frayed cables, stowing items not in use, and checking for loose nuts and bolts are not listed as PMCS checks.
They are things that you should do any time you see they must be done.
c. Explanation of Columns. Following is an explanation of the columns of table 2-2.