Table 5-2. Preventive Maintenance Checks and Services for Drinking Water System
Q - Quarterly
S - Semiannually
A - Annually
CHECK FOR AND HAVE
IS NOT READY/
REPAIRED OR ADJUSTED
B D A D W M Q S A
Be sure electrical power is OFF before per-
forming maintenance on electrical systems.
Redtag appropriate switches and circuit
breakers with: "WARNING - DO NOT ACTI-
VATE - REPAIRS BEING MADE." Observe all
safety precautions listed in the beginning of
a. Wipe components clean, especially
gauges and control panels.
b. Check for leaks, paying special attention
Class Ill leaks.
to joints, valves, fittings, and piping.
Report leaks to shift leader or bargemas-
c. Check for loose or missing securements
or fasteners. Tighten or replace as neces-
d. Check for damage, especially to pres-
sure gauges, filters, and control panels.
Notify shift leader or bargemaster so
repairs can be made.
e. Remove rust and corrosion.
paint in accordance with TB 43-0144 as
necessary. Do not paint threads or
a. Check wiring for loose or missing con-
nections and frayed cables. Secure,
tighten as necessary.
b. Visually check wiring for loose connec-
Sparks are seen.
tions. If sparks are seen, report to shift
leader or bargemaster. Shut power off.