Freezing Temperature Operation; Drive Unit Impact Protection - Mercury Bravo Three Operation & Maintenance Manual

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Freezing Temperature Operation

IMPORTANT: It boat is operated during periods of freezing tem-
perature, precautions must be taken to prevent freezing dam-
age to power package. Refer to "COLD WEATHER or EX-
TENDED STORAGE" for draining instructions.
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Drive Unit Impact Protection

The Power Trim hydraulic system is designed to provide impact pro-
tection for drive unit. If a submerged object is struck while boat is
moving forward, the hydraulic system will cushion the kickup of drive
unit as it clears the object, reducing damage to unit. After drive unit
has cleared object, the hydraulic system allows drive unit to return
to original operating position, preventing loss of steering control and
engine overspeed.
Use extreme caution when operating in shallow water or where un-
derwater objects are known to be present. Use extreme care to pre-
vent striking submerged object while operating in REVERSE. No im-
pact protection is provided in REVERSE.
If drive unit should strike a submerged object, stop engine as soon
as possible and inspect drive unit for damage. If damage is present
or suspected, boat should be taken to an Authorized MerCruiser
Dealer for thorough inspection and necessary repair. Operating a
damaged drive unit could cause additional damage to other parts of
drive unit, or could affect control of boat. If continued running is nec-
essary, do so at greatly reduced speeds.
IMPORTANT: Impact protection system cannot be designed to
ensure total protection from impact damage under all condi-
tions.
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