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Simrad AP26

Old 08-24-2011, 06:52 AM
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I am having some issues with my AP26...the unit is not holding a heading very well, it holds at times and then gives me an overload error. I noticed a while back right below my linear feedback unit near my motors some type of fluid which I would notice from time to time. Is this unit run with some type of hydraulic fluid...could it be low or out of fluid...? As you can tell I'm not really sure of the way this system works... It just seems like a simple problem bc sometimes it holds fine but if I hit a swell or wave it throws it off and overloads like the unit doesnt have the power to bring the boat back on heading....? Help me out here guys!!
Old 08-24-2011, 02:17 PM
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Having the mechanic come look at it first part of next week, just thought some of you may have had insight.
Old 08-24-2011, 03:09 PM
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The fluid is probably coming from your hydraulic steering, there is no fluid in the AP feedback unit.
Old 08-24-2011, 03:25 PM
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The auto pilot drives a pump which is plumbed into your steering hydraulic system. The fluid would be from the steering system/or electric powered pump.

The feed back unit only tells the auto pilot control box what the position of the engine is (straight, port or stb)--it does not actually steer the motors. Basically it is a transducer which shows the position of the tiller arm which attatches to the motor and the hydraulic cylinder.

It is possible that you have low hydraulic fluid and you can fill the system, and bleed it (have to be done from the helm pump --or resivoir depending on brand of hydraulic steering you have.

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