Single Engine Trim/Trailer; Dual Engine Trim/Trailer; Electrical System Overload Protection - MerCruiser 350 MAG Owner's Manual

Section 2 - Getting to Know Your Power Package
• If in excess, lower the bow of some boats to a point at which they begin to plow with
their bow in the water while on plane. This can result in an unexpected turn in either
direction called bow steering or over steering if any turn is attempted or if a significant
wave is encountered.

Single Engine Trim/Trailer

Single engine applications will have a button that can be pressed to trim the sterndrive unit
up or down.
To raise the sterndrive unit for trailering, beaching, launching, low speed (below 1200 rpm),
and shallow water operation push the trim button to raise the sterndrive unit to the full up/
out position.
Some controls also have a trailer button that trims the sterndrive to a position suitable for
trailer purposes only.
NOTE: The DTS control system limits the extent to which the sterndrive unit can be trimmed
up/out when engine speed is above 3500 RPM.

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

If an electrical overload occurs, a fuse will blow or the circuit breaker will trip open. The
cause must be found and corrected before replacing the fuse or resetting the circuit
breaker.
NOTE: In an emergency, when the engine must be operated and the cause for the high
current draw cannot be located and corrected, turn off or disconnect all accessories
connected to the engine and instrumentation wiring. Reset the circuit breaker. If the breaker
remains open, the electrical overload has not been eliminated. Further checks must be
made on the electrical system. Contact your authorized dealer.
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NOTICE
90-864195072 OCTOBER 2007
mc79530