Audio Warning System; Testing The Audio Warning System - Mercury 1.7 MI Manual

GETTING TO KNOW YOUR POWER PACKAGE
CE480

Audio Warning System

Your Cummins MerCruiser Diesel power package may be equipped with an Audio Warning
System. The Audio Warning System will not protect the engine or transmission from
damage. It is designed to warn the operator that a problem has occurred.
The audio warning system will sound with a continuous alarm if one of the following occurs:
• Engine oil pressure too low
Coolant temperature too hot
•
• Transmission fluid temperature too hot
Typical transmission fluid temperature switch
Operation of the engine after the audio warning system alarm has sounded could
result in damage to the power package. Do not operate engine once the alarm has
sounded EXCEPT TO AVOID A HAZARDOUS SITUATION.
If the alarm sounds, stop the engine immediately. Investigate the cause and correct it, if
possible. If the cause cannot be determined, consult your authorized Cummins MerCruiser
Diesel dealer / distributor.

TESTING THE AUDIO WARNING SYSTEM

1. Turn the ignition switch to the ON position without cranking the engine.
2. Engage the audio test switch and hold.
3. Listen for the alarm to sound indicating that the system is functioning correctly.
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INDEX
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Typical oil pressure gauge Typical coolant temperature gauge
79753
CAUTION
CMD-3967823 / 90-865237030 OCTOBER 2003
SECTION 2
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