Mercury Bravo Three Operation & Maintenance Manual page 101

CB112
DRAINING CLOSED COOLING (COOLANT) MODELS
IMPORTANT: Drain seawater section of closed cooling system
only.
If boat is to remain in water after draining seawater inlet hose
must be removed and plugged to prevent a siphoning action
that may occur allowing seawater to tow from the drain holes or
removed hoses.
IMPORTANT: Boat must be as level as possible to ensure com-
plete draining of cooling system.
Seawater section of cooling system MUST BE COMPLETELY
drained for winter storage or immediately after cold weather use
if the possibility of freezing temperatures exist. Failure to com-
ply may result in trapped water causing freeze and/or corrosion
damage to engine.
IMPORTANT: Closed cooling section must be kept filled year-
round with recommended coolant. If engine will be exposed to
freezing temperatures, make sure closed cooling section is
filled with an ethylene glycol antifreeze and water solution prop-
erly mixed to protect engine to lowest temperature to which it
will be exposed.
IMPORTANT: Do not use Propylene Glycol Antifreeze in the
closed cooling section of the engine.
1
Ensure engine is as level as possible to ensure complete draining
of cooling system.
2
Remove drain plug from heat exchanger.
3
Repeatedly clean out drain hole using a stiff piece of wire. Do this
until entire system is drained.
! CAUTION
! CAUTION
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