Mercury 300 XS OptiMax Manual page 57

Trimming the outboard beyond a neutral steering condition may result in a
pull on the steering wheel or tiller handle and loss of boat control. Maintain
control of the boat if trimming beyond a neutral steering condition.
Consider the following lists carefully.
Trimming in or down can:
• Lower the bow of the boat.
• Result in quicker planing off.
• Generally improve the ride in choppy water.
• Increase steering torque or pull to the right (with the normal right‑hand
rotation propeller).
• In excess, lower the bow to a point at which the boat begins to plow with
the 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.
LIMITING TRIM IN
In rare circumstances, the owner may decide to limit the trim in to avoid unsafe
handling or steering conditions at planing speeds.
Operating the boat at high speeds with the outboard trimmed too far under
can create excessive bow steer, resulting in the operator losing control of the
boat. Install the trim limit pin in a position that prevents excessive trim under
and operate the boat in a safe manner.
On some boats, increased trim‑in range can cause handling problems at high
speeds, resulting in personal injury or death. We recommend that only
qualified personnel adjust the trim‑in limit inserts and test the boat for
handling problems.
IMPORTANT: Some boat/engine combinations not using a trim angle
adjustment device, or trimmed to the full trim in position, may not exhibit any
undesireable or unsafe handling or steering conditions. In these cases, a trim
limiting device may not be adventageous to accelleration or planing. Always
perform a water test to determine if these characteristics apply to a particular
boat/engine combination.
To limit trim in on models with a three‑ram trim system, purchase a stainless
steel tilt pin from your dealer and insert it in whichever adjustment hole is
desired.
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FEATURES AND CONTROLS
WARNING
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WARNING
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WARNING
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