ComNav 2001 Autopilot System
P/N 29010017 V1.0 - 32-
DOCKSIDE SET-UP
INTRODUCTION
It is essential that the DOCKSIDE SETUP
procedure be performed before taking the vessel
out on the water.
This procedure will be much easier to do if you
have a helper, especially if you don't have a
rudder angle indicator (R.A.I.).
You will need a small screwdriver such as a
precision or jewellers' screwdriver for
adjustments inside the pilot.
The goals of the dockside set-up are:
1. To set the limits of the rudder travel.
2. To adjust the R.A.I.
3. To make sure that the autopilot moves
the rudder in the correct direction.
4. To tune the autopilot for your particular
steering system.
5. To make sure that the navigation
interface is properly connected.
SETTING OF RUDDER TRAVEL LIMITS
Setting of the Rudder Gain Adjust, inside the pilot, limits the amount of rudder travel that the autopilot allows and prevents
the rudder from going hardover and stressing the steering system.
TO SET THE RUDDER GAIN ADJUST:
1. Turn the rudder hard to starboard (right)
using the vessel's wheel. Turn the master
select switch to STANDBY.
2. Turn the Rudder Gain Adjust until the
red (port) front panel key lights up.
If the green (starboard) front panel key
lights up, turn the MASTER SWITCH
off and reverse the RUDDER POWER
and RUDDER COMMON wires in the
DISTRIBUTION BOX. Turn back to
STANDBY and the red key should be on.
If neither key lights up, the rudder
follower is incorrectly installed. Check
the installation again. In particular,
check that the rudder follower arm is
parallel to the tiller arm. (See figure five,
page 21.)
3. From hardover to starboard turn the
wheel back to port about 1/16 of the total
travel (e.g. 1/2 turn if the total travel from
starboard to port is 8 turns).
4. Turn the RUDDER GAIN ADJUST
until the red (port) key just turns off. Turn it no
further than this point
5. Turn the rudder hard to port with the
wheel. Check that the green (starboard)
front panel key comes on just before the
rudder reaches hard to port. If the green
key does not come on, adjust the length
of the rudder follower connecting rod so
that the green key turns on at the
same number of turns of the
wheel from midships as does the red key.
6. Recheck to make sure that the red (port)
key turns on just before the rudder
reaches hard over to starboard. Recheck
to make sure that the green (starboard)
key turns on just before the rudder
reaches hard over to port.
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