Instruction manual
Simrad AP26 and AP27 Autopilots
106 20221586F
The value on the display is the
angle read by the rudder feedback
unit before any adjustment is
made.
If the actual rudder angle is different from that of the display,
correct the reading by turning the course knob clockwise to
increase the value or counter clockwise to decrease the value.
See note.
Advance to the next step by pressing the STBD button.
Manually turn the helm to port until the rudder stops at
maximum port rudder.
Adjust the displayed angle the same way as for starboard rudder.
Note ! Many boats have ±45° (90° H.O. - H.O.) rudder angle as
standard. So if you are not making any adjustment to the display
readout (i.e. not turning the course knob), the autopilot will set a
(default) value of 45° to each side. However, you should always
simulate an adjustment by tuning the course knob forwards and
back again. This is necessary to prevent the rudder from hitting
the end stops.
Rudder zero may still be inaccurate and should be adjusted later
during sea trial.
Proceed to next menu item by pressing STBD button.
Rudder Test
Note ! If the boat uses power assisted steering, it is important that the
engine or electric motor used to enable the power assist steering
be turned on prior to this test.
Bring the rudder manually to midship position before starting the
test.
Caution ! Stand CLEAR of the wheel and do not attempt to take manual
control of the wheel during this test!
Activate the automatic rudder test
by turning the course knob
clockwise.
Note ! The automatic rudder test can be aborted any time by pressing
the STBY button.