OPERATION
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Instrumentation
It is important to monitor critical engine and boat functions while
the boat is in operation.
Mercury Racing requires that the following critical engine functions
be monitored:
• Oil pressure
• Engine RPM
• Oil temperature
• Water temperature
• System voltage
• Guardian fault messages
Warning System
The engine's warning system includes an audible alert consisting
of a horn located in the helm harness, and the Engine Guardian
system. Do not attempt to alter or disable the warning system in
any way.
NOTICE
A continuous horn indicates a critical fault. Operating the engine
during a critical fault can damage components. If the warning
horn emits a continuous beep, do not operate the engine unless
avoiding a hazardous situation.
ENGINE GUARDIAN SYSTEM
The Engine Guardian system monitors sensors on the engine for
any early indications of problems. If a sensor indicates a fault, the
system responds to the problem by emitting a continuous or
intermittent horn and, depending on the type of fault, may reduce
engine power to provide engine protection. If the boat is equipped
with System View, a message will be given on the display screen
in conjuction with the horn. Refer to the System View manual for
details. When the key switch is turned "ON", the warning system's
horn beeps once to verify horn operation.
Fault Type and Related Warning Signal
• Critical ‑ Steady horn
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