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ST4000 Helm sticking in Standby
10-04-17, 09:39 AM (This post was last modified: 10-04-17 09:59 AM by Chuck - Raymarine - Moderator.)
Post: #1
ST4000 Helm sticking in Standby
Raymarine ST4000 Auto Pilot

Problem: In recent months the wheel sticks when the auto pilot (ST4000) is in stand-by. A slight tug releases the wheel. Sometimes a “clink” or gear sound is heard at the time of release. When the navigation instruments are switched off the wheel always turns freely with the slightest touch. On rare occasions the wheel operates without sticking. Sometime after hand steering for a time (auto pilot in standby), and then holding the wheel in a fixed position for a time I have noticed it becomes stuck when I next go to turn the wheel. What I have done to problem solve:

Put it in Auto and back to standby several times.
Checked all connections leading to the wheel mechanism
If using my remote (100) I made sure it was in standby, but usually the remote is off or has not been in use
Thinking there is a conflict with the Raymarine a75 I turned off the autopilot in settings in the a75
After going from Auto to Standby and disengaging the wheel lever I waited for a short time before attempting to turn the wheel just to be sure the autopilot had time to disengage.
Turned all Nav instruments off for a time then later or the next day turned them on, leaving the autopilot in standby, and without changing any settings.

Cliff Hynniman
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ST4000 Helm sticking in Standby - hynnimac - 10-04-17 09:39 AM

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