Dual Engine Trim/Trailer; Electrical System Overload Protection - MerCruiser 3.0 MPI Owner's Manual

Some controls also have a trailer button that trims the sterndrive to a position suitable for
trailer purposes only.

Dual Engine Trim/Trailer

If using external tie bars, raising or lowering the drives independently of each other can
damage the drive and steering systems. If using an external tie bar, raise and lower all
drives together as a unit.
Dual engine applications may have a single integral button to operate both sterndrive units
simultaneously or may have separate buttons for each sterndrive unit.
Some controls also have a trailer button that trims the sterndrives to a position suitable for
trailer purposes only.

Electrical System Overload Protection

An electrical overload will either fail a fuse or trip a circuit breaker. You must find and repair
the source of the overload before replacing the fuse or resetting the circuit breaker.
NOTE: In an emergency, when you must operate the engine but cannot isolate the cause
for the high current draw, turn off or disconnect all accessories connected to the engine
and instrumentation wiring. Reset the circuit breaker. If the breaker remains open, you have
not eliminated the electrical overload and the electrical system requires further checks.
Contact your authorized Mercury MerCruiser dealer.
A circuit breaker protect the engine wiring harness and the instrumentation power lead. To
test the circuit breaker, push the red button. If the circuit breaker is functioning properly,
the yellow lever will appear. Reset the breaker by pushing the yellow lever back into the
housing.
90-899883272 MARCH 2008
a
Yellow lever style circuit breaker‑typical
a - Yellow lever‑shown tripped
b - Red test button
Section 2 - Getting to Know Your Power Package
NOTICE
b
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