TM 55-1930-209-14&P-19
Table 2-4. Preventive Maintenance Checks and Services for Seawater System (Continued)
B -
Before
D -
Daily
Q - Quarterly
D -
During
W -
Weekly
S - Semiannually
A -
After
M -
Monthly
A - Annually
INTERVAL
ITEM
PROCEDURES
EQUIPMENT
ITEM
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.
2-17/(2-18 blank)