Mercury Racing HP565, Manual, Page: 126 / 151

COLD WEATHER OR EXTENDED STORAGE
114
eng
Draining the Seawater System
!
CAUTION
Water can enter the bilge when the drain system is open,
damaging the engine or causing the boat to sink. Remove the
boat from the water or close the seacock, disconnect and plug
the seawater inlet hose, and ensure the bilge pump is
operational before draining. Do not operate the engine with the
drain system open.
IMPORTANT: Only drain the seawater section of the closed
cooling system.
IMPORTANT: The boat must be as level as possible to ensure
complete draining of the cooling system.
Your power package is equipped with a drain system. Refer to
Drain System Identification
to determine which instructions
apply to your power package.
IMPORTANT: The engine must not be operating at any point
during the draining procedure.
Drain System Identification
AIR-ACTUATED SINGLE-POINT DRAIN SYSTEM
a - Manual pressure
release valve
b - Threaded cap for
air connection
c - Green indicators
a
b
c
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