Raymarine Autohelm 6000 User Manual

Contents

Raymarine Autohelm 6000 User Manual Manual pdf 29 page image

3.3 FUNCTIONAL TESTPROCEDURESThe following functional tests and set up -procedures must be carried out before sea trialsal-e attempted.3.3.1 SETTING UPSwitch OnSwitch on the electrical supply from the mainpanel. All control units will emit a short beep toneto indicate that the computer is now active. ThealJtopilot will start up in ‘Stand By’ mode andindicating control units will dis,play the currenthlaading.Course Computer Gain SettingTl-re gain control on the course computer shouldirlitially be switched to the setting numberirrdicated on the following table:-LOA GAIN SETTINGPlaning Displacement12-l 5m ( 4 0 - 49ft.) 0 115-l 8m (50 - 60ft.) 1 2The above setting recommendations willprovide stable control for initial sea trials andmay be increased if necessary later.Operating SenseThe operating sense of the autopilot can bechecked by switching to ‘Auto’ mode anddepressing the ‘+lO’ key which should initiaterudder movement to starboard. If movement tocon occurs, the operating sense of the autopilotmust be reversed by reversing the motorconnections between the course computer andthe drive unit. The connection reversal should bepermanently made at one of the main terminalblocks and not by reversing the Spade connectorflying leads to the course Computer.Fluxgate SettingThe fluxgate should have been approximatelyaligned with the ship’s head during installation(see section 2.1.3). If an indicating control unit isfitted, the fluxgate should be more accuratelyaligned as follows, so that the digital coursedisplay agrees with the main steering compass.Switch to ‘Stand By’ mode and gently rotatethe fluxgate body until the digital display on thecontrol unit agrees with the vessel’s main steeringcompass on the current heading. If the fluxgate isfree of deviation, the autopilot’s digital display willagree with a corrected steering compass on allheadings.’ It is, however, unlikely that bothcompasses are entirely free from deviation andthat perfect agreement will be obtained on allheadings. If significant differences in readingsoccur on other headings, a compass adjuster maybe consulted to correct the source of deviation. Inany event the main steering compass shouldalways be used for basic navigation.Windvane SettingThe windvane must be accurately aligned to theyacht’s head to provide equal apparent windangles on opposite tacks when using theAutomatic Tacking system.The windvane head should initially be alignedby rotating the mounting mast in its frictionbearing until the vertical line on its body faces theyachts bows. Then align the windvane parallel tothe yachts centre line using adhesive backedtape to temporarily fix it in position as shown./’ /To check correct alignment select windvanemode (depress Auto and Stand-by together).Then depress ‘-1’ and ‘+l ’ keys together toinitiate a tack (see section 3.2.3).If the head is correctly aligned norudder/wheel movement will occur. If movementis observed note the directions (Port orStarboard) and move the vane head by a smallamount (lo or 2”) in the same direction. Select‘Stand-by’ and then repeat the sequence aboveuntil no rudder/wheel movement is observed.Remove the adhesive tape on completion.