Tayana -48 Owner's Manual page 12

secondary closed cooling system. The salt water flows through
an engine, mounted heat exchanger, cools the closed system
coolant and is returned to the sea via the exhaust system.
Sea Water Inlet for Engine
！
THE COOLING SYSTEM STARTS AT THE COOLING
WATER SEA COCK, WHICH CAN BE SHUT OFF IF
REQUIRED.
MAKE SURE THE SEACOCKS ARE OPEN BEFORE
STARTING THE ENGINE. THE ABSENCE OF
COOLING WATER WILL CAUSE THE ENGINE TO
OVERHEAT AND CAUSE IRREPARABLE DAMAGE.
Alarm System
The engine and transmission are protected by an independent
alarm system consisting of an alarm bell mounted on control
console.
The alarm system was designed to warn you audibly or visibly in
case any of the following possible damaging conditions exist:
（1） Engine
temperature (water temperature) exceeds
specified limit.
（2） Engine oil pressure drops below specified limit.
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