Table 2-4. Preventive Maintenance Checks and Services for Seawater System (Continued)
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
performing-any maintenance or repair
on this system. OPEN circuit breakers.
Redtag circuit breakers or motor con-
troller with "WARNING - DO NOT
ACTIVATE. REPAIRS BEING MADE."
Observe safety precautions listed at the
beginning of this manual and in manu-
High voltages and hazardous materials
are used in the operation of this
The power supply to the equipment
must be shut off before performing
Open (OFF) switchboard circuit breakers:
ROWPU 1 and 2 control station-
switchboard circuit breakers
P6 and P7 are open (OFF).
Cooling pump controller-power panel
1 circuit breaker 1 P5 is open (OFF).
Wipe components clean, especially
gauges and control panels
(void 2 starboard)
Check for leaks, paying special atten-
Class III leaks.
tion to all joints, valves, fittings and
piping. Report leaks to shift leader or
bargemaster for corrective action.
Check for damage, especially to
pressure gauges, filters and control