SEAWATER COOLING SYSTEM SERVICE MANUAL NUMBER 22
Page 6A-34 90-860074--1 FEBRUARY 2002
Inspection Before Removal
NOTICE
Refer to Cold Weather or Extended Storage, Draining Instructions in SECTION 1B and
Precautions in this section, BEFORE proceeding.
1. Drain the seawater system.
2. Remove hose clamp or end cover from INLET end of the appropriate coolers. Refer to
Seawater Flow Diagrams.
3. Inspect the passages. Clean if needed.
4. Refit hose or end cover. Torque end cover to specification or securely tighten hose
clamp.
Cleaning Without Removal
NOTICE
Refer to Cold Weather or Extended Storage, Draining Instructions in SECTION 1B and
Precautions in this section, BEFORE proceeding.
1. Drain the seawater system.
2. On coolers:
a. Remove hoses from both ends of cooler to be cleaned.
b. Temporarily attach a suitable hose to inlet end of cooler and place end of hose in a
suitable container to catch water in the following.
c. Attach a suitable adaptor to the outlet end of cooler to which a tap water hose may
be connected.
d. Open tap water faucet and backflush cooler until discharge water is clean.
e. Remove temporary hose and adaptor.
3. On heat exchangers:
a. Remove end covers from section to be cleaned.
b. Open tap water faucet and backflush exchanger until discharge water is clean.
c. Discontinue backflushing.
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