Raymarine Autohelm 6000 User Manual Download

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Distributed by

Any reference to Raytheon or

RTN in this manual should be

interpreted as Raymarine.

The names Raytheon and RTN

are owned by the

Raytheon Company.

Summary of Contents for Autohelm 6000

Page 1: ...Distributed by Any reference to Raytheon or RTN in this manual should be interpreted as Raymarine The names Raytheon and RTN are owned by the Raytheon Company ...

Page 2: ...Autohelm 6000 Installation Operating Handbook ...

Page 3: ...mplicated control knobs have given way to microprocessor automation so that steering performance is continuously optimised over the entire range of sea and vessel trim conditions Autohelm 6000 is simple to install and prepare for sea trials However sound installation is vital if the system s full performance potential and reliability are to be achieved The installation notes should be followed car...

Page 4: ... Cabling and power supplies 2 3 1 Signal cabling 2 3 2 DC supply cable i P El 3 2 2 3 2 3 3 2 4 3 25 3 2 6 3 3 3 3 1 3 3 2 3 3 3 3 3 4 Operation Basic principles Controls Fixed control units Hand held control unit Windvane system Operating mode indication Off course alarm Radio navigation interface Functional test procedure Setting up FunctIonal test procedure Compass deviation check Mechanical te...

Page 5: ...l units are watertight and may be externally mounted when necessary The most comprehensive installation is illustrated in Fig 1 and provides for up to three control units together with a fluxgate compass and optional wind vane course sensors Provision is also made for the addition of a Loran c or Decca Radio Navigation Interface The most basic installation would consist only of a central course co...

Page 6: ...d by the Radio Navigation Interface system Both types of control unit are designed for surface mounting and would normally be situated adjacent to the steering position s A t ran held control unit is also available to permit full control of the autopilot and power steering from any position on deck The hand held control unit is fitted with a 6m 19 wander lead and plugs into a bulkhead mounted wate...

Page 7: ...wo core cable 85mm 3 35 1 I 6 RADIO NAVIGATION INTERFACE The autopilot can can be interfaced to any Decca or Loran C system that is provided with a suitable autopilot output The radio navigation interface unit receives cross track error information from the Decca or Loran C system and computes course adjustments to enable the autopilot to steer to a selected way point The radio navigation interfac...

Page 8: ...he rudder drive system and reduces lost motion to an absolute minimum All vessels with hydraulicsteering systems will require a hydraulic drive unit 1 2 1 ROTARY DRIVE UNIT The output shaft is driven by a continuously rated servo motor via an efficient reduction gearbox The gearbox is dry lubricated to permit operation in any attitude A fail safe friction clutch within the gear train engages autom...

Page 9: ... course computer which regulates peak current and eliminates the need for end limit switches Supply voltage Peak thrust Maximum stroke speed Maximum stroke Overall length at mid stroke A Tiller arm length 8 f35 rudder Maximum rudder torque Power consumption typical average Suitable for vessels up to Type 1 Type 2 12 volts 24 volts optional 12 volts 24 volts optional 5501bs 225Kg 750lb 340Kg 1 2inJ...

Page 10: ...uter which also regulates peak pump pressure and eliminates the need for end stroke limit switches I I A 117mm 46 Supply voltage Regulated peak pressure Flow control Peak flow rate unloaded Maximum ram capacity Power consumption typical average O erall length A Type 1 12 volts 24 volts optional 450lb in 30bar integral pilot check and pressure balance valve system 40in3 mm 650cc min 1 5in3 2 50 2 3...

Page 11: ...ant that the mounting position should be well ventilated and clear of the engine room Pclsitioning will also be influenced by the requirement to reduce the total length of the pc wer cable to a minimum see section 2 3 2 The course computer should first be unplugged from the connector unit after removing V the terminal box lid and unscrewing the two internal retaining thumb nuts Fig 2 The connector...

Page 12: ...le After threading the interconnecting cable through the 20mm dia hole the control unit is finally screwed into position using the four self tapping screws provided Fig S Four blanking plugs are supplied to conceal the fixing screw recesses in the facia and these should be firmly pressed into position to complete the installation The deck socket for the hand held control unit should be situated in...

Page 13: ...ed at least 8m 2 6 away from the vessel s steering compass in order to avoid deviation of both compasses The fluxgate must also be positioned as far away as possible from large iron masses such as the engine and other magnetic devices which may cause deviation and reduce the sensitivity of the sensor If any doubt exists over magnetic suitability of the chosen site the position may be surveyed usin...

Page 14: ... deck using the waterproof deck gland To fit the gland a 6mm dia hole should be drilled through the deck to pass the cable through and the gland finally screwed into position using the self tapping screws provided Fig 1 1 After pulling the interconnecting cable completely through the gland nut should be gently tightened to seal the cable The interconnecting cable can then be led back to the course...

Page 15: ...watertight joint to the mounting surface Fig 13 2 1 6 RADIO NAVIGATION INTERFACE The radio navigation interface will normally be mounted close to the radio navigation receiver Decca or Loran in the navstation area It IS fully waterproof and if desired may be mounted extlsrnally A printed template is provided to assist marking out fixing hole positions and the hole for the interconnecting cable Aft...

Page 16: ...in reduction radio to be selected for both planing and displacement vessels It is first necessary to determine the number of turns of the driven sprocket when the rudder is driven from hardover to hardover Example A 12m 40 LOA displacement vessel requiring two turns of the driven sprocket to drive the rudder from hardover to hardover will require a chain reduction ratio of approximately 3 0 1 as i...

Page 17: ...e sprocket ideally should not have less than 15 teeth Bore and ke way dimensions for the drive unit sprocket are detailed in Fig 19 It is essential that these bore and keyway dimensions are strictly adhered to All sprockets must be keyed and grub screwed to their shaft and finallv secured with Loctite The drive unit is mounted by bolting to a substantial frame member Fig20 The mounting foot is sec...

Page 18: ...d to run in the same plane and correct alignment must be carefully checked by means of a straight edge The gearbox may be mounted in any convenient attitude without risk of oil leakage In addition the drive sprocket may face any direction since steering sense can be corrected when the installation is complete by reversing the polarity of the drive motor connection see section 3 3 1 Finally the cna...

Page 19: ...htened and the nut locked by means of the locking tab provided The standard ball end fi tting will allow for a maximum angular misalignment between the pushrod and the tiller crank plane of rotation of up to 5 Accurate angular alignment is extremely important and under no circumstances should the above extreme limits be exceeded The body of the drive unit is mounted by bolting to a substantial fra...

Page 20: ...has been completed the hydraulic pump may be operated by switching the control unit to Auto and operating the I 0 and 10 course change buttons Greater motor movements will be obtained if the gain control on the course computer is set to No 6 and the rudder control set to maximum Two Line System The hydraulic steering system should be bled according to the manufacturers instructions From time to ti...

Page 21: ...lied in 12m 40 cut lengths as follows The end face of the connector unit is fitted with ten blanking discs Fig 27 which are easily Cat No 0086 pr essed out and replaced by the special rubber Two core unscreened grommets supplied with each peripheral unit fixing kit Fig 28 After cutting the interconnecting cable to length Fig 29 it may be passed through the inserted rubber grommet and prepared for ...

Page 22: ...ion where they will remain dr v and protected When planning the position of the course computer ref 2 1 l it is important to reduce the overall length of heavy power cable between the drive unit and the vessel s central power distribution panel to a minimum It is essential that the copper area of the main power supply cable is equal to 1 5mm7 per metre run between the drive unit and the distributi...

Page 23: ...y be maintained by the application of permanent rudder off set standing helm to restore balance If permanent rudder off set is not applied to restore balance the vessel will bear on to a new heading Under these circumstances the Autohelm 6000 detects that the original course is not being restored and continues to apply additional rudder off set in the appropriate direction until the vessel returns...

Page 24: ...o alter course to port or starboard in increments of 1 and 10 degrees STAND BY Push once to disengage the autopilot for manual steering The previous automatic heading is memorised RUDDER 0 0 l 0 0 Provides seven levels of rudder response Clockwise rotation increases the level of applied rudder N B In cases where there are two or more automatically disengage all other rudder controls fixed control ...

Page 25: ... The basic control functions are as follows MANUAL I Push once to permit power steering Push once to move rudder to port or starboard in single fine increments Push once to move rudder to port or starboard in single coarse increments Push once to reengage automatic compass heading control and maintain the current heading or Push twice within 2 seconds to return to the previous automatic heading Pu...

Page 26: ...nd angle STAND BY Push once to disengage the autopilot for manual steering The previous apparent wind angle will be memorised or Push once to change over to automatic compass heading control and maintain the current heading Automatic Tacking The autopilot has an automatic tacking function To prevent accidental gybing the tack which operates in windvane mode only as function will only operate with ...

Page 27: ...le beep tone emitted from all control units every 30 seconds NAVIGATION Autopilot supervised by Navigation Interface I I I I I I I SECONDS 1 2 3 4 5 6 q ON 7OFF fane Mode Average Course Display When in Vane mode the displayed course is averaged over 20 seconds so that significant course changes due to changing wind direction are easily observed At 15 second intervals the course display flashes on ...

Page 28: ...n course limits the alarm can only be silenced by disengaging the autopilot and resetting a new course This facility is particularly useful for sailing craft when in Vane mode since an automatic warning will be given of significant wind direction changes 3 2 6 RADIO NAVIGATION INTERFACE The operating handbook for the Loran C or Decca Radio Navigation Interface system is supplied with the interface...

Page 29: ...s follows so that the digital course display agrees with the main steering compass Switch to Stand By mode and gently rotate the fluxgate body until the digital display on the control unit agrees with the vessel s main steering compass on the current heading If the fluxgate is free of deviation the autopilot s digital display will agree with a corrected steering compass on all headings It is howev...

Page 30: ...ication of additional helm would eventually return the vessel to the correct course with the necessary standing helm applied Return to course can be simulated by keying 10 to return to the current heading The progressive application of standing helm will cease when the fluxgate senses that the course error has been removed 3 3 3 COMPASS DEVIATION CHECK When using an indicating control unit the flu...

Page 31: ...the steering quadrant and linear drive actuator from hardover to hardover does the actuator foul any part of the quadrant steering mechanism or yacht s structure Any fouling under load could damage the drive actuator 0 Check that the Drive actuator operates l l 0 0 horizontally and that angular movement of the ball end fitting is minimal 5 maximum Select Auto and key the lO button several times to...

Page 32: ...eglected until finally the autopilot will respond only to true variations in course To ensure precise course adjustments the sea state control is automatically reset whenever a course change is selected Automatic Trim Control The Autohelm 6000 automatically corrects for Weather helm indicated by wind loads on hull or sails No adjustment of the pilot is necessary After each course change the Automa...

Page 33: ...UTH IN THE ABOVE TESTS Planing Craft Planing craft operate over a wide speed range Rudder effectiveness increases significantly at high hull speeds and it is always necessary to reduce the rudder control setting as speed increases to avoid oversteer The rudder control setting would normally be reduced to minimum at maximum planing speed and increased towards maximum at minimum displacement speeds ...

Page 34: ...s in higher speed craft and when it occurs can be corrected by reducing the rudder control setting Passage making under automatic pilot is a very pleasant experience which can lead to the temptation of relaxing permanent watch This must always be avoided no matter how clear the sea may appear to be Remember a large ship can travel two miles in five minutes just the time it takes to make a cup of c...

Page 35: ...ould develop whicn could cause the actuator to remain engaged even when Stand by is selected if this happens a1 DISCONNECTTHE MAIN CIRCUIT BREAKER TO THE AUTOPILOT THE STEERING WILL IMMEDIATELY BE FREE or 0 IN AN EMERGENCY THE ACTUATOR CLUTCH CAN NORMALLY BE OVERRIDDEN BY TURNING THE STEERING WHEEL HARD It is emphasised that this fault is extremely Linlikely and can be immediately corrected as cle...

Page 36: ...ment of excessive lost motion backlash in the steering gear and correct if necessary Lost motion at the wheel should not exceed 2 of the total wheel movement from lock to lock This does not apply to the Linear or Hydraulic drive systems which are normally directly coupled to the rudder stock 3 Check that Hydraulic Steering systems are free from leaks and trapped air Bleed when necessary to remove ...

Page 37: ...ce the course computer houses the majority of the electronic control system there is a high probability that if an electronic fault has occurred it will be located in this area The course computer unplugs easily for servicing Section 2 1 1 Control units are removed by withdrawing the four blanking plugs and unscrewing from the mounting face Section 2 1 2 The blanking plugs can be removed without d...

Page 38: ...y Nautech or its approved installer 4 The Warranty Registration Card must be completed by 0 The Owner or User The Dealer supplying the product 0 The Installer Service Centres in the country in which the product is being used It will then be serviced and returned direct to the sender on the basis that the Distributor or Service Centre will supply any parts used free of charge but the sender will be...

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