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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.
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Installation & Operating Handbook Nautech Limiied, Anchorage Park, Portsmouth Hampshire, PO3 STO, England. Telephone (0705) 693611, Telex 86384 NAUTEC G.
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CONTENTS Page 26 2 6. Maintenance 1. General Description 3 1.1.1 Course Computer 7. Fault Location Procedure 27 3 1.1.2 Control Unit 3 1.1.3 Fluxgate Compass 4 8. Warranty, After Sales 1 .1.4 RuddepReference Transducer 28 4 Service 1.1.5 Auxiliary Alarm 4 1 .1.6 Radio Navigation Interface U.K. Service Centres 30 5 9. 1.2 Hydraulic Drive Units 5 1.2.1 Type 0 Hydraulic Drive 10. Overseas Representatives 31 5 1.2.2 Type 1 Hydraulic Drive 6 2. Installation 7 2.1 .l Course Computer 2.1.2 Control Unit
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1. GENERAL DESCRIPTION Congratulations on choosing the The PowerPilot is modular and designed 288mm (11.4in) 1.1 .l Course Computer Autohelm PowerPilot. It offers for easy installation with flexibility to cope The course computer houses the I outstanding self steering capability for a with the variation of individual craft and microprocessor, electronic control circuitry wide range of modern powercraft owner specifications. It is supplied as and power amplifier to drive the hydraulic equipped wi
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1.1.4 Rudder Reference 213mm (8.37in) 1.2.2 Type 1 Hydraulic Drive 1.2 HYDRAULIC DRIVE UNITS The hydraulic drive unit consists of a Transducer The PowerPilot is available with one of two hydraulic drive units, depending on precision gear pump with integral valve The rudder reference transducer provides block driven by a continuously rated servo the course computer with a precise the size of the vessel and the displacement of the ram. motor. The pump drive motor is connected rudder position. It i
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2. INSTALMTION professionally or alternatively professional WARNING in use we strongly recommend the use of a 2.1.1 Course Computer advice be obtained if you intend to install The Autohelm PowerPilot requires correct Mounting Position - Below Deck protective cover (optional extra the system yourself. installation if it is to provide accurate safe The course computer should be positioned Cat. No. DlOl). The manufacturers can accept no self steering. Whilst designed for simple in a dry protected a
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Removing a Control Unit It is very important to ensure that the l Using a flat lever gently unlock the fluxgate is positioned at least 0.8m (2ft6in) away from the vessel’s steering securing pads starting at one corner. compass in order to avoid deviation of l Do not use excessive force. both compasses. The fluxgate must also 0 The unit may be re-attached by pressing it’back onto the security pads. be positioned as far away as possible from large iron masses, such as the engine and 2.1.3 Fluxgate
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the rudder reference unit arm and tiller 2.1.5 Accessories arm. If it is more convenient, the rudder The most comprehensive installation is ” RADIO NAVIGATION Fig. 9 reference unit may be mounted upside illustrated below in Fioure 12. INTERFACE down (label downwards), but if this is FLUX GATE Fig. 12 done, the red and green wires must be - reversed in the connector unit. It is important to ensure that dimensions A and B (fig. 11) are the same RUDDER at both points and that when the rudder is ami
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l Ensure all hoses are filled with oil 2.2.1 Type 0 Installation 2.2 HYDRAULIC DRIVE UNIT When the installation has been l Prime the pump ports with oil The Type 0 pump must be mounted General guidelines completed the hydraulic pump may be vertically with the mounting flange bolted When operating the hydraulic pump to The hydraulic drive unit should be operated by switching the control unit to to a suitable horizontal surface using four bleed the system, turn the helm pump in mounted clear of sp
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. I 2.3.2 DC Power Supplies (Fig. 2 1). After cutting the connect to the connector unit where they 2.3 CABLING AND POWER (Fig. 22). interconnecting cable to length (Fig. 21), are permanently hard wired to colour SUPPLIES it may be passed through the inserted Flexible connection tails fitted with coded connector blocks situated on a rubber grommet and prepared for insulated spade connectors are SUpplicd 2.3.1 Signal Cabling central printed circuit board (Fig. 19). with the course computer to conn
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3. OPERATION It is very important that both the 3.1 BASIC PRINCIPLES vessel from those necessary to maintain The power supply must be led from the the selected heading. If unnecessary electronic and heavy duty power supplies The following description of the main distribution panel and protected by are isolated by a switch in the positive Autohelm PowerPilot’s principle of repetitive corrections continue the means of a 25 amp fuse or current computer will automatically neglect them overload trip
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3.2.3 Operating Mode indication 3.2.4 Off-Course Alarm l If the rudder immediately drives hard over to port, the motor connections When the autopilot is set to Auto mode a and Course Display built in off-course alarm is automatically between the course computer and The operating mode of the autopilot is drive unit should be reversed. set up. The off-course alarm will sound indicated by a flashing red LED, as l If the rudder drives a few degrees to from all control units when the vessel summarise
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4. SEA TRIALS Initial sea trials should be carried out in During the first minute of operation, it will left in this condition the rudder will l Check that the steering ram moves calm conditions with plenty of sea room. be noticed that repetitive movements of eventually be driven hard over. If, however, smoothly and that there is no excessive The previously conducted functional test the vessel are gradually neglected until the vessel were moving through the play. will have verified that the auto
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5. OPERATING HINTS 4.2 RUDDER CONTROL higher speed craft and when it occurs can Autohelm PowerPilot’s central course been carried out correctly? Check be corrected by reducing the rudder ADJUSTMENT again. computer continuously optimises control setting. In excess of 30 knots, a automatic steering performance l Has the fluxgate compass been The rudder control setting recommended reduction by at least two positions can installed in an area free from large eliminating the need for operator on page
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6. MAINTENANCE 7. FAULT LOCATION PROCEDURE The autopilot is one of the most used and Autohelm PowerPilot has been designed located in this area. The course computer hardest working items of equipment on to achieve very high standards of reliability unplugs easily for servicing (Section board, and therefore must receive its fair combined with ease of servicing. 2.1.1). share of attention and routine Control units are removed using a If a fault should appear, please double maintenance. suitable le
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8. WARRANTY, AFTER SALES SERVICE LIMITED WARRANTY FULL INTERNATIONAL the claim. The product will then be serviced free of charge and returned WARRANTY Nautech or its appointed Distributors or promptly direct to the sender. Service Centres will, subject to the 2. Nautech,‘its Distributors and Service Nautech or its appointed Distributors or conditions below, rectify any failures in Centres, are not liable for any charges Service Centres will, subject to the this product due to faulty manufacture
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10. OVERSEASREPRESENTATIVES 9. SERUICECENTRES - UK,Eireand Channel Islands Humberside Argentina Greenham Marine Ltd i/&m Electronicc Marine Ltd Trimer S.A. Tom Taylor Co. Ltd &‘WM Wrlghl0cck.s Fray J.5 M. de Ore 2030/40 72 Fraser Avenue Hull 1425 Buenos Aires Toronto M6K 3El COXKk 190 Dock Street Ponsmo;th 0482 25163 Argrntma Ontario Pfymwth Fleefwocd Hdmphwe Tel: (010 54 I) 774 3728/4470 Canada 0752 228114 03917 5241 0705 693611 Telex: 007 33 23653 TRMER AR Tel. LO10 !416)53Olatl Marine Electro
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. Holland Switzerland Bconwna’s Handelmaatxhappij 8.V Marine torail Pacifique Yachting Systems PO BorNr.50128 BP 648 Noumea General Wdle Slrarre IO 1305 AC Almere Have” NewCole&& 8002 Zurich Enge H&r!d Tel: IO10 687) 27 58 46 Swuerland Tel- (01031 3240) 11524 T&r 007 706 3 120 CONIPANS NM Tel: (01041 I)202 8044 Telex: 007 44 70121 GEBONI Fdx: 1010 687) 27 66 43 Telex: 007 45 816598 YASH CH Far (010 313240) 11519 Far:(01041 I)2028064 NewZealand Hong Kong Taiwan Lusty 6 Blundell limited Ing Hai Co
