TM 55-1930-209-14&P-2
Table C-1. Preventive Maintenance Checks and Services for Seawater System (Continued)
B - Before
D - During
A - After
D - Daily
W - Weekly
M - Monthly
Q - Quarterly
S - Semiannually
A - Annually
ITEM
PROCEDURES
EQUIPMENT
ITEM
INTERVAL
TO BE
CHECK FOR AND HAVE
IS NOT READY/
NO.
INSPECTED
REPAIRED OR ADJUSTED
AVAILABLE IF
B D A D W M Q S A
AS NECESSARY
2) Operation
Close seawater (SW) valves
SW11, SW2 and SW3
Turn valve SW30 to position C,
SEACHEST.
When regulator gauge reading
stabilizes at 3-5 psi, turn valve
SW30 to position A - VENT.
NOTE
If seachest obstruction Is not cleared,
repeat BLOWDOWN procedures.
WARNING
Do not open seachest unless valve
SW30 Is In position A - VENT.
C-10
