Chapter 4: Commissioning the Autopilot 8-4-3
ST290 Instrument System Owner’s Handbook
Step 2: Check the autopilot rudder control
Check the rudder position sensor
WARNING:
Do NOT attempt to change autopilot connections with the power
applied.
1. Turn the wheel manually to starboard.
2. At the PILOTS chapter Status page, check that the rudder bar moves to
starboard. If the rudder bar display moves the wrong way:
i. Turn off the power.
ii. Reverse the red and green wires connected to the
RUDDER inputs
on the course computer.
iii. Switch on the power and re-check.
Check the autopilot steering control
1. Manually center the wheel, then at the Pilot Keypad, press the AUTO
button to place the autopilot in Auto mode. Check that the PILOTS
chapter Status page displays AUTO.
WARNING:
Before commencing the next step, be ready to press the
STANDBY
button if the rudder moves hard over.
2. At the Pilot Keypad, press the
+10 button once. Check that the rudder
moves to starboard a few degrees and then stops. If the rudder drives
hard over, immediately press
STANDBY to prevent further rudder
movement.
Figure 4-3: Checking rudder connection
3. If the rudder moves to port or the rudder drives hard over:
i. Press
STANDBY.
ii. Turn off the power.
D3568-3
81183_2 S8.book Page 3 Tuesday, May 6, 2003 9:08 AM
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