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Compass Marine How To | all galleries >> Welcome To >> Installing A Raymarine Rudder Position Sensor > Rudder Position Sensor Top
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Rudder Position Sensor Top
11-MAR-2006 Compass Marine Inc.

Rudder Position Sensor Top

This is the actual RPS and the Starboard base plate which it's mounted to. It's critical to the performance of the Autopilot that the sensor be installed so it's fore / aft orientation is mounted in-line with the center-line of the hull and then bolted down in this position. It does not need to be on the center-line just aligned with it. For this install it was easiest to line up the base and top plates before installing the set screws so I had nice 90 degree angles to work off of. before the RPS is permanently installed you need to ensure the radial drive does not over-steer the RPS stops. If you find you're pushing the limits of the RPS, side to side in relation to its physical range, simply move your pivot point closer to the rudder post. Moving the pivot point towards the rudder post will result in less throw and keep you well within the stop limits of the RPS...

If the radial drives pivot point mounting location can rotate more than the RPS can handle, it will break, plain and simple. Over turning or over throwing the RPS can be remedied by adjusting the rudder stops, to accommodate the RPS, or by simply moving the pivot point closer to the rudder post. The latter is often the easiest.

Installing the threaded connector rod is simple but it will need to be cut to length. Always cut it slightly longer and shorten as needed. Once you cut it too short you can't make it grow.Better to cut twice if you have to rather than ordering another rod because you cut it too short. Never cut short and always err on the large side when test fitting this piece.

Once all the hardware is installed you simply run the RPS data wire to the Autopilot control head and connect it. Depending upon how you mount it you may need to reverse the wires.

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Guest 13-Mar-2012 10:57
Excellent instruction! Clearly defined. Good work.
Chris Wyckham 19-May-2011 08:59
Yes, Ray, it is snap on/ snap off, and it takes a bit of force. Very scary the first time.

Also note: Route your wires carefully! Mine were routed sloppily by the PO and caught on the quadrant. The strain relief isn't great, and the wires ripped out of the sensor. The sensor can be opened, though, so I was able to re-solder them.
Ray Holland 16-Apr-2009 20:55
Just found your site. Great work and help to others. You don't comment on the attachment/removal of the RPS link arm. You do mention it is a ball fitting. I think the arm socket is just a pressure fit to the ball. Snap on/off, right? As I recall the RPS moving arm is plastic and I was nervous to apply too much pressure to release the socket on my 6001 APilot system.
Charlie 08-Jan-2009 15:04
Where is your autopilot ram connected? Does it also connect to the quadrant or does it have a separate tiller arm of its own?