Si-tex SP-80 User's Manual

SI-TEX MARINE ELECTRONICS INC

#800 - 11001 Roosevelt Blvd

St. Petersburg, Florida 33716

Phone (727) 576-5995

INSTALLATION and OPERATION MANUAL

SI-TEX SP-70 AND SP-80 AUTOPILOTS

SI-TEX SP-80 AUTOPILOT

SI-TEX SP-70 AUTOPILOT

P/N 29010049 V1.2 2

WARNING

This Autopilot will automatically steer your vessel, however, it is only an aid to

navigation. Its performance can be affected by many factors including

equipment failure, environmental conditions and improper handling or use.

This system does not reduce your responsibility for the control of the vessel

when underway. You must always be in a position to monitor the course,

supervise the Autopilot, and resume manual control if the need to do so

arises.

Whenever underway, your vessel must be under the control of

a qualified and alert person.

P/N 29010049 V1.2 3

SI-TEX SP-70 and SP-80 Autopilot Manual

Owner’s Manual for Installation and Operation

Part Number: 29010049

SI-TEX MARINE ELECTRONICS INC #800 – 11001 Roosevelt Blvd St. Petersburg, FL 33716 Telephone: (727) 576-5995

P/N 29010049 V1.2 4

TABLE OF CONTENTS

PRODUCT DESCRIPTION

SP-70/SP-80 System layout 8

SI-TEX SP-70/SP-80 PARTS LIST

INSTALLATION INSTRUCTIONS

I-TEX MARINE REVERSING PUMP 13

Tools And Material s R equi red T o I nstall Pum p 14 Hydraulic Connections For Two-Line Steering Systems 17 Hydraulic Connections For Three-Line Steering Systems 18 Technical Specifications 19 Specifications Common To B oth Pum ps 19

INSTALLATION INSTRUCTIONS

Planning 21 Tools 22 Clip Installation 23 Power Cable Installation 24 Fluxgate Compass Installation 24 Rotary Rudder Feedback Installation 25

Attaching the Rudder Feedback Linkage. 27 Outboard Feedback Installation 31 Wiring the Processor 35 Mounting the Processor 41

Setting Slow Speed Rudder Response 60 Turns and Changing Course 61 Setting Fast Speed Rudder & Counter- Rudder Response. 63 Fast Speed Turns and Course Changes 64 Adjusting Your Digital Rudder Angle Indicator (RAI) 66 Using Your Navigation Interface 67 The Navigation Int erfa ce 68 NMEA 0183 68

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ADJUSTMENT COMMANDS

USER CODES FOR THE SI-TE X SP-70 & SP-80

PROBLEMS WITHOUT AN ERROR CODE

APPENDIX A

Connections to 4 and 5 Wire Motors 78 APPENDIX A 79

APPENDIX B

Connections to Solenoid Valves 80

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APPENDIX C

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Connecting a Second Location or Second Station Options 81 Second Location Kit 81 Second Station Kit 82

APPENDIX D

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Connecting a Rudder Angle Indicator 84

APPENDIX E

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Connecting the NMEA 0183 Heading Output 85

CERTIFICATE OF LIMITED WARRANTY

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PRODUCT DESCRIPTION

SI-TEX SP-70 or SP-80 Autopilots are reliable, accurate and easy to use aids to navigation. They feature four operating modes, watertight design, and built-in navigation interface.

The 4 operating modes are:

• STANDBY MODE allows manual steering while displaying compass information.

• POWER STEERING MODE features push button steering control, an d displays compass or rudder information.

• PILOT MODE steers to a constant heading.

• NAV MODE steers along a course line when the SP-70 or SP-80 is connected to an appropriate navigation device.

In both PILOT and NAV Mode, pressing the Red or Green Key allows use of the Dodge/Course-change featur e.

To steer a constant heading, the SP-70 or SP-80 compares compass heading information with the course heading that is entered into memory. If the vessel is not on the correct heading, the Autopilot calculates the rudder position that will bring the vessel onto the correct heading. The Autopilot uses a drive unit to move the rudder. Information from the Rotary Feedback or Outboard Feedback is used to calculate new rudder positions and to verify that the steering system has followed the Autopilot commands.

The SP-70/SP-80 contains a program called Ghost Rudder. Should the Rudder Feedback fail, the Autopilot will use its memory of the rudder movement to calculate new rudder positions. The Ghost Rudder program will not allow the Autopilot to steer as wel l as it can with the Rudder Feedback. It will allow the Autopilot to be used until repairs can be made to the Rudder Feedback.

The design of the SP-70/SP-80 includes many circuit protection devices such as; reverse power connection protection, output circuitry overload protection, protection against overheating, protection against computer failure or program error.

SPECIFICATIONS

Voltage: 10VDC - 40 VDC Steering Outputs: 20 Ampe res M axim um

Sizes L X W X H

SP-70 Control: 2.75 x 5.13 x 1.0 in.

(7.0 x 13.3 x 2.5 cm.)

SP-80 Control: 6.0 x 3.1 x 1.0 in

(15.4 x 7.9 x 2.5 cm)

Processor: 6.3 X 15 X 2.7 in.

(16.0 x 38.1 x 6.9 cm.)

Compass: 5.6 x 4.2 x 3.4 in.

(14.2 x 10.7 x 7.6 cm)

Pump: 4.8 x 7.5 x 4 in.

(12.2 x 19.0 x 10.2

cm.)

When steering along a course line, both Autopilots use information from t he compass to monitor the heading. They also use position information received in NMEA 0183 format from LORAN, GPS, or plotter. Using both of these inputs, the SP-70/SP-80 calculates a course to steer and keeps the vessel on the course line.

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SP-70/SP-80 System layout

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SI-TEX SP-70/SP-80 PARTS LIST

Parts are not drawn to any scale.

FOR SP-70 AUTOPILOT PACKAGES

Si-Tex Processor: Part Number 30080003. Used on both SP-70 and SP-80 Autopilot packages.

SP-70 Control Unit. Part Number 20080009. This part includes a curly cord wired to the Control Unit.

SP-70 Control Unit Clip and Spacer. Part Number 65610010.

FOR SP-80 AUTOPILOT PACKAGES

SP-80 Control Unit and Mounting Bracket. Part Number 20080011. This part includes a 25 foot (7.7 meter) cable wired to the Control Unit.

P/N 29010049 V1.2 9

SP-70/SP-80 Fluxgate Compass. Part Number

20320003. This part includes 40 feet (12.2 m) of cable wired to the compass.

In this group, one part

Rotary Rudder Feedback: Part Number 20330008. This part includes 50 feet (15.2 m) of cable wired to the Rudder Feedback. This part wi ll always come with:

Rotary Rudder Feedback Linkage Kit. Part Number 20330007

OR the other part will be included:

Outboard Feedback: Part Number 20330002. This part includes 30 feet (9.1 m) of cable wired to the Rudder Feedback.

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Also included but not drawn:

• Power Cable: Seven and a half feet (2.3 m) of cable provided for connection of Processor and breaker.

• Accessory Kit: Contains a small screwdriver, extra terminal sockets and gland.

• Control Unit Interconnection Cable (SP-70 systems only): 10 feet (3.05 m) of cable with a

receptacle and cap on one end. Labelled as cable one.

• Si-Tex SP-70 and SP-80 Auto pilot Ma nual. Par t Number 29010 049.

Adjustable Reversing Pump. Part Number 20810016 (12VDC/18CI), 20810031 (24VDC/18CI), 20810018 (12V/30CI) and 20810035 (24V/30CI). 18CI pumps are for installations where the steering ram size is from 7 in installations where the steering ra m size is from 15 in

(490 cm3).

30 in

(115 cm3) up to 18 in3 (295 cm3). 30CI pumps are for

(245cm3) up to

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This page is intentionally blank.

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INSTALLATION INSTRUCTIONS

SI-TEX MARINE REVERSING PUMP

Part Nos. 20810016, 20810031, 20810018 & 20810035

GENERAL:

The reversing pump consists of a hydraulic pump and a motor. The pump is a pist on type, driven by a reversing permanent magnet motor. The pu mp is designed in such a way that it will keep oil from returning through the pump when is not running or correcting. There is also a bleed-to tank to allow the use of unbalanced cylinders. The pump is co mp atible with all h ydrau lic st eeri ng s yst ems including pressurized steering systems such as Hynautic.

SPILL VALV AD JU STMENT

To adjust flow rate, loosen pump housing screws and turn pump housing. C lockwise w ill decrease flow rate, anti-clockwise to increase flow rate.

Part Nos. 20810016(12V) & 20810031(24V) 18CI Pumps The pumps above can be ordered with a 12VDC or 24VDC motor and have an adjustable flow rate that will deliver from 36 in suitable for rams with displacements ranging from 7 in

Part No. 20810018(12V) and 20810035(24V) 30CI Pumps The pumps above can be ordered with a 12VDC or 24VDC motor and have an adjustab le flow rate that will deliver from 61 in suitable for rams with displacements ranging from 15 in

P/N 29010049 V1.2 13

to 73 in3 (600 cm3 – 1200 cm3) per minute of oil at 500 PSI (3,440 kPa) (34 Bar). It is

to 122 in3 (1000 cm3 – 2000 cm3) per minute of oil at 500 PSI (3,440 kPa) (34 Bar). It is

(115 cm3) to 18 in3 (295 cm3)) displacement.

(246 cm3) to 30 in3 (495 cm3) displacement.

***** IMPORTANT *****

If the system you purchased includes a reversing motor pumpset, it is important that you apply and install this unit correctly. To ensure that you get the most from your purchase, read this installation and instruction manual carefully. By following the step-by-step procedure and using only basic tools and materials, you will find the installation easy to do.

Caution

This Pump is not waterproof and is therefore not warranted against water damage.

This Pump is not warranted against damage caused by improper installation.

If you are installing this pump on a Capilano or Syten ste ering system, you probably hav e a 3-line steering system. Read the 3-line steering installation instructions carefully.

Tools And Materials Required To Install Pump

1) Basic Tool Kit

2) Pipe Cutter

3) Funnel with Filter (a coffee filter will do)

4) 3/8" Electrical Drill

5) 2 gallon (9 L.) bucket (to catch excess

oil).

6) Rags or Paper Towels

7) Pipe Fittings (check with steering

gear manufacturer for type & size)

8) Tubing (check with steering gear

manufacturer for type and size)

9) Hydraulic Oil (check with steering

gear manufacturer for type)

10) Teflon based thread sealer (such as LOCTITE™ P.S.T.)

11) Miscellaneous Hardware (for mounting pump and securing lines)

1. Consult with your steering system manufacturer to get detailed

information about factory authorized materials. Failure to do s o could void your warranty.

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Planning

Installation of the pump consists of:

• Finding a mounting location for the pump

The pump can be mounted in an y orienta tion except with Port C facing downward. If Port C is facing downward then air will not be able to rise out of the pump and the pump will not have a supply of oil.

• Partially draining the steering system

• Mounting and connecting the pump to

the existing steering lines

• Filling and bleeding the steering system.

A suitable mounting location for the pump MUST:

• Be dry

• Be lower than at least one of the hel m

pumps in the steering sy stem

• Provide a solid mounti ng b ase

• Be at least 4 feet (3.1 m) from the

vessel’s compass.

A mounting location for the pump SHOULD:

• Provide easy access to the pump

• Provide an easy connection point to

the steering system

• Minimize the length of the pump hoses

• Minimize the length of the wires to the

motor.

There are two ways to connect the pump to the steering system. The first is to leave the system completely filled and be careful not to spill hydraulic fluid. The second is to drain the system of fluid completely before cutting or opening any lines.

If you follow the first method, remembe r that when you disconnect or cut the steering lines, there will be a constant slow discharge of oil due to gravity draining the system. Have a container ready to catch all excess oil. Do not reuse any oil reclaimed from your system.

Draining your System

If you wish to follow the second method and drain the system, use the following simple procedure.

1. Have a large container, about 2 gallons, ready.

2. Disconnect the delivery lines at a low point, usually where the lines connect to the steering cylinder.

3. Turn the wheel of the highest helm pump in both directions until no more fluid comes out of the lines.

4. Repeat the previous step on each lower helm pump in turn.

Types of Steering Systems

A typical mounting location would be in the engine compartment or the steering console.

You have a three-line system if the helm pump is a Capilano Model 250 or 275 (Made by Teleflex), or if there is a Uniflow valve mounted close to the steering cylinder.

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There are two general types of steering systems, two-line systems, and three-line systems. The pump connection to the steering system is different for each type. Separate instructions are supplied for both types of steering system s.

You have a two-line system if you do not have the above components in your system.

CAUTION

CLEANLINESS must be maintained while making hydraulic connections. Contamination introduced into the steering system fluid can cause steering components to malfunction, possibly resulting in a loss of steering.

Before beginning to connect the pump to the steering system, review the following installation hints:

• Cap or cover the ends of hoses with a clean rag before pushing them between bulkheads.

• Wipe copper filings off freshly cut and reamed copper tube. Do not blow the filings off.

• Teflon based thread sealer, such as 'LOCTITE™ P.S.T.' must be used on all male pipe threads. Do not place thread sealer on the first two threads. Do not use a tape-type thread sealer. These can shred and enter the steering system fluid.

Do not place thread sealer on female pipe threads.

• When tightening fittings into the pump lockvalve, hold the lockvalve, not the motor. That way, the lockvalve will not twist out of alignment with the rest of the pump.

• Connection of the pump lines is most easily made at existing breaks in the steering system lines. For example: valves, t-joints and other fittings.

CAUTION

Opening your hydraulic steering system will introduce air into your steering system. This air will be expelled if the steering system is bled properly. After you refill your system and during the "Set-up Routine", your autopilot can be used for bleeding the air. Ensure that you follow the Compensating Line installation instructi ons very c arefull y as al l air is expelled through this line when bleeding your system. If the Compensating Line does not prime properly and allow fluid to get to the autopilot pump, the pump will not perform properly. The Compensating Line does not have to be a highpressure hose. In fact, even a clear hose can be used allowing for easy v isu al confirma tion of prope r Compensating Line operation.

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Hydraulic Connections For Two-Line Steering Systems

A simple schematic of the pump installation is shown below.

2 Line Steering System Installation

Delivery Lines:

Ports A and B in the diagram above are the input/output ports of the pump and must be

connected to the steering lines coming from the steering cylinder. It does not matter which pump port is connected to which steering line.

Compensating Line:

In the above diagram Port C is the compensating or bleed line, and must be connected to the steering system's reservoir. This connection can be mad e at: a hel m pump; remote reservoir (if there is one); the compensating line connecting two helm pumps; or the compensating line connecting a helm pump to the remote reservoir. If the c onnection is being made directly to the helm pump, ensure that the bleed line is connected to the LOWER helm bleed port.

The compensating line MUST have a gradual rise from the pump, to the connection, to the steering system. This allows air to rise out of the pump , ensuring a constant supply of oil to the pump.

INSTALLATION OF SHUT-OFF VALVES RECOMMENDED

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Hydraulic Connections For Three-Line Steering Systems

A simple schematic of the pump installation is shown below.

3 Line Steering System Installation

Delivery Lines:

In the above diagram, Ports A and B are the input/output ports of the pump and must be connected to the steering lines between the steering cylinder and the Uniflow valve. The simplest method of doing this is to install a tee in each of the cylinder ports of the Uniflo w valve itself and connect to these tees. It does not matter which pump port is connected to which steering line.

Compensating Line:

Port C is the compensating or bleed line and must be connected to the steering systems’

reservoir. This connection can be made at a helm pump; a remote reservoir (if there is one); the return line connecting two helm pumps; or the return line between a pump and the Uniflow valve. If the connection is being made directl y to the helm pump, ensure that the bleed line is connected to the LOWEST bleed port of the pump.

The connection MUST be at least six feet (1.83 m) from the Uniflow valve as shown abo ve. If the connection is too close to the Uniflow valve, the manual steering system may not work well.

The compensating line MUST have a gradual rise from the pump, to the connection, to the steering system. This allows air to rise out of the pump , ensuring a constant supply of oil to the pump.

INSTALLATION OF SHUT-OFF VALVES RECOMMENDED

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Re-Fill And Bleed

After you have installed your Pump, ref ill and ble ed your manual st eering system according to the manufacturer's directions. Any air, which is in the pump, will be expelled during the Set-up Routine .

Technical Specifications

Part Number: 20810016 20810031 20810018 20810035 Model Number: 18CI 18CI 30CI 30CI Operating Voltage: 12VDC 24VDC 12VDC 24VDC Max Displacement @ 200PSI: 73 in

73 in

122 in

Current @ 200 PSI: 4.5 Amps 3.0 Amps 6.0 Amps 3.0 Amps Max Pressure: 800 PSI 800 PSI 500PSI 500PSI

Specifications Common To Both Pumps

Port Sizes: - 3/8 inch compression fittings supplied Displacement (18CI): - Adjustable, from 2 6in Displacement (30CI): - Adjustable, from 6 1in

(600cm3) to 73in3 (1200cm3)

(1000cm3) to 122in3 (2000cm3) Min Stall Pressure: - 1200 PSI (84.0 Bar) (8,268 kPa) Oil Type: - Any approved hydraulic steering fluid Operating Temperature: - 0 to 50 Degrees Celsius (32 to 122 Fahren heit) Lockvalve: - Yes Lockvalve Leakage: - Negligible Unbalanced Cylinder: - Yes, up to 3/4 (1.9cm) diameter rod Weight: - 5.0 lbs (2.27 kg) including wire Size: - 10 inches x 3.75 inches x 4.75 inches Size (metric): - 254mm x 95mm x 121mm Shaft Seal: - 100 PS I (6.8 9 Bar) (6 89 kPa) m inimum

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Connection between SP-70 Control Unit and Receptacle on Cable Number 1

SP-80 Control Unit and cable going to Si-Tex Processor

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INSTALLATION INSTRUCTIONS

SP-70 and SP-80 AUTOPILOTS

Planning

Caution

Using ordinary electric tools near water is very dangerous. To minimize the dangers of electric shock and personal injury, we recommend using cordless rechargeable tools or hand tools.

If you are going to use a sealant when flush mounting the SP-80 Control Head, be careful to not cover the small square hole in the middle of the bottom side. This hole must vent to atmosphere.

Do not mount the Processor near heat sources, such as heat radiators, or over engines. If you can, moun t the Processo r so that the cooling fins are vertical.

Processor Location

Allow at least a foot or 30 cm of clearance on either end of the Processor in the space where it is to be located.

In choosing a location for your SI-TEX SP-70/SP-80, remember that the Control Unit Interconnection Cable or Number 1 Cable, and the cable from the Compass to the Processor should not be cut or lengthened. Excess cable may be loosely co iled behind a panel.

Number 1 Cable from the SP-70 Control Unit Receptacle to the Processor is 10 feet long (3.05 metres). Number 1 cable from the SP80 Control Unit to Processor is 25 feet long (7.7 metres).

The cable from the Compass to the Processor is 40 feet long (12.2 metres).

Power Connection

There is a 7.5 foot (2.3 metre) power cab le included with your SI-TEX SP-70/SP-80. We recommend that you do not lengthen this cable.

If you must extend the cable:

• Use the smallest extension length possible.

• Use no less than 10 A.W.G. (6mm conductor. Splice and solder the joints.

• The extension must be less than 10 feet (3 metres).

• Make the joints watertight by using he atshrink tubing and silicon, or some other watertight covering.

)

You will want to have the Control unit near the steering station you use the most. On SP70’s try to position the Receptacle so that the curly cord will also reach other convenient locations such as the place that you use when docking your vessel.

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Grounding

Compass Location

The Power Cable also contains a groundi ng wire. Connecting this wire to a prop er ground (*see below) may reduce static on radios and improve LORAN reception.

Many different grounding connections could be used:

1. If you have a small vessel, the negative battery post can be used.

2. If you have several electronic instruments, each could be individually attached to the battery post. Do not connect one ins trument to another instrument and then to the post.

3. If you have a ground plane for a radio on your boat, connect the ground wire to that ground plane.

*A proper ground connection point must be at the same voltage potential as battery negative. Any voltage difference between battery negative and the ground point may indicate a problem and the ground wire should not be used. Ensure that connec tion wires are as short as possible and that connections are clean.

When choosing a location for the Compass, try to locate it as close as possible to the most stable spot on your boat. Usually this spot will be close to the water line level, in the middle of the boat and two -thirds to wards the stern from the bow.

Do not install your Compass near wires or devices carrying large electric currents such as battery chargers, electric pumps, motors or televisions.

Do not mount your Compass near any iron or steel objects.

Tools

You will need the following tools to install your SI-TEX Autopilot:

SCREWDRIVER: One Phillips and one medium slot screwdriver

WIRE CUTTERS: A pair of ordinary wire cutters suitable for general work around your house.

DRILL and a selection of DRILL BITS

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SMALL ADJUSTABLE WRENCH If you purchased a SP-70 or SP-80 with a

Rotary Rudder Feedback you may need one stainless steel band clamp which is more than large enough to fit around your rudder post.

You may also wish to have a supply of tie wraps for securing cable lengths and tools specific to your own boat.

SP-70 Receptacle Installation

The Receptacle is attached to the Number 1 cable. The diagram to the right shows the Receptacle mounted in a panel.

Mount the receptacle near your normal steering position. The curly cord on the Control Unit lets you move about 5 feet away from the Receptacle.

A stainless steel ring is placed between the bolt heads and the receptacle flange. Do not attempt to seal the receptacle by overtightening the bolts as the ring will deform the receptacle and interfere with plug insertion. A proper caulking compound or sealant should be used instead. The th ree bolts should onl y be tightened enou gh to compress the lock-washers, no more. As the plug has a tight seal, and insertion into the receptacle may be stiff, a lubricant has been included in your package.

Cable 1 Receptacle Installation

Hole sizes:

Hole for receptacle: 0.825 inches or 21 mm in diameter. Use the barrel of the Receptacle to mark holes for the f lange. Holes in the flange are for a number 6 (3mm) screw. You may wish to vary this size depending

upon the panel material.

Clip Installation

The Clip is used for mounting the Control Unit. The Clip is mounted with two nu mber 10 (5mm) screws or bolts.

The usual mounting location is on the dashbo ard within easy reach when you are steering your vessel.

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Power Cable Installation

The Power Cable is labelled with a "5". Connect the Power Cable to a breaker capable of supplying twenty Amperes.

CAUTION

Keep the breaker turned off or do not connect the cable to the breaker.

Use the white wire for battery positive from the breaker. Use the black wire for battery negative. The green wire is a grounding wire.

Fluxgate Compass Installation

Fluxgate Compass

The fluxgate compass must be correctly positioned or it will not work.

Extending the cable is not recommended. If you must extend it, see page 23 for guidelines on proper extension techniques.

Route the supplied Cable to the Processor location.

To correctly position the Fluxgate Compass, mount it so that the surface with the cable gland is up. On the top surface there is an arrow labelled "bow". The arrow must point in the same direction as the bow of your bo at . In cases where the compass is mounted on a side wall, the bow line arrow may be ± 90 degrees out of alignment. Remove the four top housing screws and rotate the housing ± 90 degrees. Warning: This unit comes

from the factory watertight. Be careful with seals and “O” rings if you remove the housing.

Initially, mount your Fluxgate Compass using strong adhesive tape or some other temporary, non-marking fastener. Coil any excess cable at the Compass locat ion rather than at the Processor. It may be necessary to relocate your compass after you have done the "Set-up Procedure".

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Rotary Rudder Feedback Installation

If you have purchased a SP-70 or SP-80 with an Outboard Feedback, please see the instruction s

titled, "Outboard Feedback".

Select the following parts from your SP-70 or SP-80 package:

RUDDER FEEDBACK

LINKAGE

BRASS BALL JOINT

(INCLUDED WITH LINKAGE)

You may also need:

• One stainless steel band clamp to hold the Rudder Arm to the rudder post.

• Four screws: #10 size (5 mm), suitable length.

Install the Rudder Feedback Assembly in the stern of the vessel, close to the rudder post. Place the Rudder Feedback so that it will be protected from objects which may shift posi tion when your boat is moving.

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Mounting the Rudder Feedback

Rudder Feedback correctly installed to rudder post

In the diagram above notice that:

• the Rudder Feedback Arm is above the

cable entry gland;

• the Linkage sockets are on the top of the

ball joints. Do not hang the Linkage from

the ball joints.

Mount the Rudder Feedback so that the Rudder Feedback Arm and the Rudder Arm:

• are at the same he ight and

• separated by less than 24 in. (60.9 cm)

center to center, and

• each makes an angle of 90 degrees with

the Linkage.

To correctly align the Rudder Feedback and the Rudder Arm, you may need to make a mounting base for the Rudder Feedback. Such a base must be firm. It should not flex when the vessel is moving.

Use the Rudder Feedback as a template to drill holes in the mounting surface. If you must drill new holes in the flange at the back of the Rudder Feedback, drill the Rudder Feedback flange first, and then use it as a template to drill holes in the surface.

Mount the Rudder Feedback using # 10 (5 mm) screws or bolts of suitable length.

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To Assemble the Rudder Feedback Arm

Loosen the adjustment block that keeps the two pieces of the Rudder Fe edback Linkage from sliding.

Measure the approximate diameter of your rudder post in inches.

The Rudder Arm has several holes drilled through it. The holes are marked by numbers on the top surface of the arm.

Select the hole on the Rudder Arm marked by a number equal to the diameter of your rudder post measured in inches. (1 cm =

0.394 in.)

Bolt the Brass Ball Joint onto the Rudder Arm using the selected hole. The b all of the Brass Ball Joint must be on the same side of the Rudder Arm as the numbers. Tighten th e nut and lock washer securely.

Attach the Rudder Post Arm to the rudder post using a stainless steel band cl amp. The Brass Ball Joint must be on top. The Rudder Post Arm must be at the same height as the Rudder Follower. The Rudder Post Arm must point straight ahead when the rudder is in the straight ahead steering position.

Attaching the Rudder Feedback Linkage.

Move the rudder so it is in the straight ahead position.

Snap the Rudder Feedback Linka ge onto the two Brass Balls. Make sure to close the small release clamps on each Plastic Socket.

With the Rudder Feedback Arm directly above the cable gland and the Rudder Arm pointing straight ahead, tighten the adjusting block.

Caution

Carefully watch the Linkage while you mov e the rudder through its full range of motion. The Rudder Feedback and the Rudder Feedback Linkage should move easily without binding. The moving parts must not contact any other objects. If there are any problems, fix them now.

Run the Rudder Feedback Cable from the Rudder Feedback to the space where the Processor will be located. Place the Ca ble so that it is protected from abrasion, stretching and cutting.

Turn to the section titled: "Wiring the Processor".

Move the Rudder Feedback Arm so that the Arm is directly above the point where the cable enters the Rudder Feedback.

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