ComNav 2001 - Page 68

ComNav 2001 Autopilot System
P/N 29010017 V1.0 - 68-
ADDENDUM D
Autocomp for 2001 Autopilots.
Tools Required: Medium size Slot Screwdriver.
2001 Installation and Operation Manual.
The Autocomp procedure for 2001 Autopilots is detailed below. The procedure assumes that you have read the
2001 Installation and Operation Manual, and are familiar with the operation of the various controls on the
Autopilot Head. Note that the procedure given here differs from the “Dockside Setup” in the Autopilot manual
because the Autopilot manual does not take into consideration the presence of a Heading Rate Stabilizer.
1. Start with the Autopilot power turned “off”.
2. Gently loosen the nylon screw on the top of the Heading Rate Stabilzer that is labeled AUTOCOMP. It is
necessary to loosen the screw a couple of turns. Do not remove the screw all the way.
3. Turn the Autopilot “on”. The display will lock on to an arbitrary heading.
4. Slowly turn the vessel in complete circles. During the turn the heading on the autopilot will remain locked
(frozen).
5. Continue turning the vessel until the autopilot display starts to follow the heading changes. It normally
takes about 2 ½ circles to come to this stage. Once the autopilot heading starts to respond to the heading
change, the autocomp for the Rate Stabilizer is complete. If unsuccessful after 3 ½ turns, the fluxgate
compass may need to be relocated.
6. After successful Autocomp, turn the Autopilot “off”.
7. Retighten the AUTOCOMP ACCESS screw. It must be screwed in all the way until the shoulder of the
screw-head is completely flush with the face of the unit’s label. Do not over-tighten as this will strip the
threads from the screw.
8. Switch the Autopilot on to Standby and check the reading on the display. If the heading displayed on the
Autopilot does not match with a reference compass then use the “compass offset function” of the autopilot
to synchronize the displayed heading to that of the reference.
9. Turn the Autopilot “off” and then “on” in the normal Standby mode. Check that the compass heading is
reading correctly on the display.
This completes the Heading Rate Stabilizer Autocomp procedure for the 2001 Autopilot.