Freezing Temperature Operation; Drain Plug And Bilge Pump; Launching And Boat Operation Care - Mercury 540 Bravo Manual

Close fuel valve.
Close seacock.
Flush cooling system if in saltwater area.

Freezing Temperature Operation

IMPORTANT: If boat is operated in freezing temperatures, ensure that closed
coolant is rated for the temperature range in which it is to be used. The
seawater section of the engine must be drained after use to prevent freezing.
Damage caused by freezing is not covered by Mercury Racing's Limited
Warranty.

Drain Plug and Bilge Pump

The engine compartment in your boat is a natural place for water to collect. For
this reason, boats are normally equipped with a drain plug and/or a bilge pump.
It is very important to check these items on a regular basis to ensure that the
water level does not rise to come in contact with your power package. Engine
components will be damaged if submerged. Damage caused by submersion is
not covered by the Mercury Racing Limited Warranty.

Launching And Boat Operation Care

Some boating maneuvers can introduce water into the engine through the
exhaust system, causing severe engine damage. Be careful when unloading
a boat from its trailer, slowing down rapidly, backing up rapidly, and stopping
suddenly.
In any of the situations described in the preceding notice, water entering the
engine could cause severe damage to internal parts. Refer to Attention
Required After Submersion in the Maintenance section of this manual.
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OPERATION
NOTICE
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