INTRODUCTION
SeaStar Inboard Steering Systems are engineered and manufactured for all Pleasure and Work Boat applications up to 50ft. with some exceptions. See the Application Guide below for specific details.

For Commercial and Work Boat applications over 50ft. (11.5m) and Pleasure Boats not included in the Application Chart below please refer to our Capilano range of Inboard Steering Systems.

Features
• Regular duty aluminum cylinders.
• Heavy duty brass cylinders.
• Easy installation for single and dual rudder vessels.
• Cylinders supplied with bleeder fittings.
• Two axis articulation.
• Easy autopilot interface.

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Four steps to select a steering system for an inboard powered boat
Application Guide
Order Guide

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FOUR STEPS TO SELECT A STEERING SYSTEM FOR AN INBOARD POWERED BOAT

1. From the Application Guide below select the System Number appropriate for the vessel based on:
a) hull type – displacement or planing,
b) length of vessel,
c) number of rudders, and
d) usage of vessel.
2. From the Order Guide below select the appropriate helms and accessory hardware for each steering station.
3. From the Order Guide select the fitting and hose kits required for the installation.
4. Confirm that you have sufficient space available in:
a) the area the cylinder is to be mounted, and
b) the dash area for the steering components.

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APPLICATION GUIDE

a) Displacement Hull – maximum hull speed does not normally exceed 18 knots.
b) Planing Hull – maximum hull speed normally exceeds 18 knots.

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ORDER GUIDE

Notice
1. For systems 1, 2 & 3 – nylon tubing (3/8″ diameter) is the standard requirement for plumbing the system. Copper tubing (3/8″ diameter) can be substituted but Fitting Kit HF5507 is required.
2. For systems 4 & 5 – copper tubing (3/8″ diameter) is the standard requirement for plumbing the system. Fitting Kit HF5508 is required.
3. For systems 1, 2, 3, 4, & 5 SeaStar outboard hose can be substituted for nylon or copper tube. These hoses must be ordered in standard lengths. They cannot be cut to length.

INTRODUCTION
Capilano Helms and Cylinders are engineered and manufactured for heavy duty marine usage, and are suitable for commercial, work boat and pleasure boat applications. Capilano Hydraulic Steering has been designed to meet ABS, Lloyds and DNV specifications.

For all Pleasure and Work Boat applications 38ft. (11.5m) and smaller with some exceptions, please refer to our SeaStar range of Inboard Steering Systems.

Features
• Regular duty aluminum cylinders.
• Heavy duty brass cylinders.
• Easy installation for single and dual rudder vessels.
• Cylinders supplied with bleeder fittings.
• Two axis articulation.
• Easy autopilot interface.

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Selection Guide
Cylinder Installation
Capilano Helm Pumps
Tubing, Hoses and Fitting Kits
Technical Information

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SELECTION GUIDE

a) Consult Manufacturer for hull lengths.

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CYLINDER INSTALLATION
Proper cylinder installation is the key to the successful operation of the hydraulic steering system. An incorrectly installed cylinder is subject to rapid seal and bearing wear and non-repairable damage.

An imaginary line drawn through the tiller arm hole at both hard over positions will create the cylinder centre line. With tiller arm at hard over positions, angle X and Y should be the same. Select the diagram and dimensional data that corresponds with your cylinder model.

Notice
Not all possible cylinder mounting configurations are shown, however, all necessary dimensions are shown regardless of mounting configurations.

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CAPILANO HELM PUMPS
1250V, 1275V & 1350

A unique variable displacement feature on the 1250V and 1275V helms allows the helms-person to adjust the amount of steering wheel turns to their preference within a predetermined range. The 1350 helm is a fixed displacement pump.

1250V & 1275V Helm Pumps

1350 Helm Pump

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TUBING, HOSES and FITTING KITS
The use of seamless soft annealed refrigeration copper tubing, type L is recommended. If flexible hose is required, use hose that has a minimum operating pressure of 1000PSI, a burst pressure of 5000PSI and the lowest available expansion factor. The 1250V requires the use of 1/2″ OD copper tube while the 1275V requires the use of 5/8″ OD copper tube. The 1350 Helm Pump requires the use of 3/4″ OD copper tube.

Cylinder Hoses
Steering systems installed with copper tubing require short pieces of flexible hose to accommodate slight cylinder movement. Hoses are supplied with 1/2″ swivel flare nuts on each end. Hoses are sold as a pair for single cylinder applications and separately for the variables of twin cylinder installations.

Fitting Kits

Single steering station and additional steering station S.A.E. flare tube fitting kits are available for use with 1/2″ O.D. and 5/8″ O.D. copper tubing.

Fill and Vent Plug Kit
This kit will facilitate filling and purging of the steering system at a more convenient and accessible area than the helm pump. A through dash fitting, complete with a waterproof vent plug, 18″ (0.45m) long vinyl tube and elbow fittings are supplied with this kit

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TECHNICAL INFORMATION

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INTRODUCTION
SeaStar offers rugged 3-line Hynautic Heavy Duty steering systems for most work and pleasure vessels up to 70 feet.

Heavy Duty helms combine one or two bi-directional axial piston pumps with pilot check and make-up check valving. The result is a unit which prevents rudder feedback, is very efficient (even at low RPM), and is immediately adaptable to multi-station use.

A wide choice of helm displacements and cylinder configurations make it easy to spec a system which can handle a variety of large boat performance requirements and accommodate most user preferences.

Features
• Low friction heavy duty hydraulic steering.
• Helm/cylinder combinations for most inboards. Marine grade materials.
• Heavy duty helms available in three displacements, to accommodate most applications and user preferences.
• Helms available with 1” straight shaft or 3/4” tapered. Mount facing any direction.
• Quick air purge relief valve.
• Fluid fill at remote reservoir.
• Heavy duty brass cylinders. Two-axis articulation. Easy installation for single or dual rudder vessels.
• Meets or exceeds applicable standards.
• Accepts most steering wheels.

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Application Guide
Order Guide
Helm Optins
Tubing Hose Options
Cylinder Options

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APPLICATION GUIDE

Notice
The application guide should be used with discretion. The chart is only a guide to selecting a steering system. A steering system manufacturer cannot anticipate all the variables in boat-rudder design that affect the steering loads. It is the final responsibility of the boat builder/designer to specify maximum expected steering loads. If the required information is not available, please see the Displacement and Planning Hull data sheets on page 10-21 and page 10-22. These sheets after being completely filled out can be faxed to Teleflex Technical Support at 604-279-2202.

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ORDER GUIDE

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HELM OPTIONS

Four helms are offered in 3 displacements, as noted in the chart at right. The H-21 helm has a 1″ straight wheel shaft; H-25 has a 3/4″ tapered shaft. The H-42 and H-41 helms both have a 1″ straight wheel shaft.

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TUBING / HOSE OPTIONS

Use soft refrigeration type copper tubing for optimum performance. For tube-to-cylinder flex hoses, select a hydraulic hose rated for 1000 PSI (70 bar) working pressure, and with a very low volumetric expansion rating.

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CYLINDER OPTIONS

Cylinders are made from brass & stainless steel. Available with stainless rod & ball joint (TMB models) or stainless rod & bronze clevis (TMC models.) Cylinders with ball joints have 2-axis articulation.
The K-31 is an optional pivot mount cylinder which can be used in the systems numbered “8a” and “8b” on the opposite page. With this cylinder, the number of wheel turns becomes 6.4 (using the H-42 helm) or 4.6 (H-41 helm).

INTRODUCTION
SeaStar Inboard Steering Systems are engineered and manufactured for all Pleasure and Work Boat applications up to 50ft. with some exceptions. See the Application Guide below for specific details.

For Commercial and Work Boat applications over 50ft. (11.5m) and Pleasure Boats not included in the Application Chart below please refer to our Capilano range of Inboard Steering Systems.

Features
• Regular duty aluminum cylinders.
• Heavy duty brass cylinders.
• Easy installation for single and dual rudder vessels.
• Cylinders supplied with bleeder fittings.
• Two axis articulation.
• Easy autopilot interface.

……………………………………………………………………………………………………………………………….

Four steps to select a steering system for an inboard powered boat
Application Guide
Order Guide

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FOUR STEPS TO SELECT A STEERING SYSTEM FOR AN INBOARD POWERED BOAT

1. From the Application Guide below select the System Number appropriate for the vessel based on:
a) hull type – displacement or planing,
b) length of vessel,
c) number of rudders, and
d) usage of vessel.
2. From the Order Guide below select the appropriate helms and accessory hardware for each steering station.
3. From the Order Guide select the fitting and hose kits required for the installation.
4. Confirm that you have sufficient space available in:
a) the area the cylinder is to be mounted, and
b) the dash area for the steering components.

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APPLICATION GUIDE

a) Displacement Hull – maximum hull speed does not normally exceed 18 knots.
b) Planing Hull – maximum hull speed normally exceeds 18 knots.

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ORDER GUIDE

Notice
1. For systems 1, 2 & 3 – nylon tubing (3/8″ diameter) is the standard requirement for plumbing the system. Copper tubing (3/8″ diameter) can be substituted but Fitting Kit HF5507 is required.
2. For systems 4 & 5 – copper tubing (3/8″ diameter) is the standard requirement for plumbing the system. Fitting Kit HF5508 is required.
3. For systems 1, 2, 3, 4, & 5 SeaStar outboard hose can be substituted for nylon or copper tube. These hoses must be ordered in standard lengths. They cannot be cut to length.