SERVICE MANUAL NUMBER 28
AUTO TRIM II
Auto Mode Operation
WARNING
Sterndrive unit will automatically lower from the raised position when the ignition
switch is turned to the RUN position and mode switch is placed in the AUTO mode.
BE SURE THAT NO ONE IS IN THE AREA OF THE STERNDRIVE UNIT.
With mode switch in the AUTO mode, the sterndrive unit will move automatically to properly
trim the boat while underway. This allows boat operator to keep both hands on the steering
wheel and to direct operator’s full attention to driving the boat.
•
At engine speeds below 3100 rpm, the sterndrive unit will remain in the full IN position.
This will force the bow of the boat down and help it get up on plane quickly.
•
Once engine reaches 3100 rpm and after a 5-6 second delay (to ensure that boat is up
on plane), the sterndrive unit will automatically trim OUT to a preset position for
maximum boat speed and efficiency. Trim OUT position can be adjusted to fine tune the
trim angle for each individual boat.
•
Upon deceleration, the sterndrive unit will trim IN when engine reaches 2600 rpm. Most
boats will still be up on plane at this point. After sterndrive reaches full IN position, the
trim pump motor will continue to run for approximately 5 seconds.
NOTE: The AUTO mode also can be used to lower the sterndrive unit from the fully raised
(trailering) position. By placing ignition switch in RUN position and mode switch in AUTO
mode, the sterndrive unit will automatically lower to the full IN position. Be sure that no one
is in the area of the sterndrive unit.
3
_ to 5_
Boat Running Above Planing Speed
Boat Running Below Planing Speed
INDEX
90-863160
MAY 2000
Page 5D-3
| Categories | Mercury MerCruiser Manuals |
|---|---|
| Tags | MerCruiser Sterndrives 90-863160 |
| Model Year | 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
(1 votes, average: 3 out of 3)
Marine readers have rated Mercury MerCruiser Bravo Outdrives Sterndrives Marine Engines Service Manual Number 28 3.0 out of 3.0 based on 1 product reviews. I could not find any mention of the seawater pump assembly.
Maybe I have the wrong unit