MerCruiser 8.1 MAG, Owner'S Manual

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Section 2 - Getting to Know Your Power Package
90-864839070 AUGUST 2007 Page 33
Trim Delta
Trim delta controls the distance between the individual adjacent drive angles when
trimming. The trim delta limit is preset, and will not allow extreme drive angle differences
that could damage tie bars. If the maximum trim delta limit is met, the drive furthest in the
trim process "up or down", will stop trimming until the adjacent drive is back within the delta
limit. Once the drive or drives are back within this delta window, the trim process will
continue.
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.
1. A circuit breaker provides protection for the engine wiring harness and the
instrumentation power lead. The circuit breaker can be tested by pushing the red
button. If the circuit breaker is functioning properly, the yellow lever will appear. Reset
after testing, or if tripped, by pushing the yellow lever back into the housing.
b
a
22529
Yellow lever style circuit breaker‑typical
a - Yellow lever‑shown tripped b - Red test button