Owners manual

33
Press the
ADJUST
key once. If the
display reads 'SLOW', press either the
up or down
ARROW
key once so the
display reads
'FASt'
.
Increase the vessels speed to its fastest
normal cruising speed.
Make a 40 degree course change.
The vessel should settle onto the new
course with one overshoot of 5 degrees
or less.
If the vessel stops turning before the
new heading is reached and then
approaches it slowly,
either increase
the Rudder one level, or decrease the
Counter Rudder one level and retest.
If the vessel overshoots the new
heading, and then makes several
turns across the new heading before
settling down,
either decrease the
Rudder one level, or increase the
Counter Rudder one level and retest.
See 0 for a graphic representation of
correct vessel response during this
manoeuvre.
Adjust the fast Turn Rate setting so the
vessel makes course changes at a
comfortable rate.
The factory pre-set adjustments are
Rudder 3; Counter Rudder 3; Yaw 1,
Turn Rate 6.
SLOW
Slow the vessel down to a slow cruise or
to working speed.
Leave the master select switch in the
PILOT
position.
Press the
ADJUST
key once, and then
press either the up or down
ARROW
key
so the display reads 'SLOW'.
Make several 40 degree course changes
and use the instructions in the "FAST"
section above to adjust the slow rudder
and counter rudder settings.
See 0 for a graphic representation of
correct vessel response during this
manoeuvre.
Adjust the slow Turn Rate setting so the
vessel makes course changes at an
appropriate rate.
The factory pre-set adjustments are
Rudder 5; Counter Rudder 5; Yaw 1,
Turn Rate 6.
C)
The Yaw (fast or slow) is normally
left at '1'.
This provides 0.5 degrees of dead band
on either side of the programmed course
before the autopilot will begin to react.
On many vessels, setting the Yaw to '0'
will cause the autopilot to work harder
than necessary to hold the vessel on
course.
As the weather deteriorates, the Yaw
setting can be increased.
This will result
in slightly worse steering, but will reduce
the amount of rudder movement,
prolonging the life of the steering system.
D)
On board magnetic interference
to the compass is likely the problem,
if
the vessel steers properly under autopilot
control on some headings, but seems to
wander on others, particularly heading
either North or South.