[C320-list] Autohelm Crazy Ivan

[Monte B.]

Gary,

C-320's are notorious for Crazy Ivans if the optional Raymarine rudder
reference unit is not installed with the autopilot. You can tell if you have
one or if the control head is seeing it by noting the rudder angle displayed
at the bottom of the control head. Turn the wheel left or right and note the
rudder angle display on the control head. If you have it something else
electronic may hit it occasionally I guess but my Crazy Ivans went away with
the RRU install.

Monte
Laima #620 

-----Original Message-----
From: c320-list-bounces at lists.catalina320.com
[mailto:c320-list-bounces at lists.catalina320.com] On Behalf Of Gary Magnuson
Sent: Tuesday, July 29, 2008 1:50 PM
To: c320-list at lists.catalina320.com
Subject: [C320-list] Autohelm Crazy Ivan

To borrow a term from the Hunt for Red October, my Autohelm 4000 auto pilot
will occasionally just make a left turn of about 10 to 20 degrees.  If left
alone it will gradually come back to its course. Any ideas why?
Gary
Time A Weigh #205