Overload Protection-Upper Engine Circuit Breaker Panel - Mercury MerCruiser Diesel Inboard 2.8L Operation & Maintenance Manual

Throttle‑only button. Allows engine throttle advancement without shifting the engine. This is done by disengaging the shift
mechanism from the control handle. The throttle‑only button can be depressed only when the remote control handle is in the
neutral position.
Control handles. The shift and throttle are controlled by the movement of the control handle. Push the control handle forward
from neutral with a quick, firm motion to the first detent for forward gear and continue pushing forward to increase speed. Pull
the control handle back from neutral with a quick, firm motion to the first detent for reverse gear and continue pushing back to
increase speed.
Control handle tension adjustment screw (not visible). This screw is used to adjust the effort required to move the remote
control handle. Refer to the instructions provided with the remote control for complete adjustment instructions.
Power trim switch. See the Power Trim section for detailed power trim operating procedures.
Trailer switch. Used to raise the sterndrive for trailering, launching, beaching, or shallow water operation. See Power Trim for
detailed trailer switch operation.
Overload Protection—Upper Engine Circuit Breaker Panel
If an electrical overload occurs, a fuse will open (blow) or a circuit breaker will open (trip). Find and correct the cause of the
electrical overload before replacing the fuse or resetting the circuit breaker.
NOTE: In an emergency, when the engine must be operated and the cause of the high current draw cannot be located and
corrected, turn off or disconnect all the 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 Mercury Diesel authorized repair facility.
Circuit breakers provide protection for the engine electrical system. The circuit breaker panel is located beneath a small access
panel in the engine cover on top of the engine.
b
90-8M0133679 JUNE 2017
eng
Section 1 - Getting to Know Your Power Package
Typical engine cover with access panel
a
a - Engine cover
b - Circuit breakers
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