INTRODUCTION

Steering today's high horse power luxury yachts and commercial boats all too often challenges the helmsman's physical endurance and cruising enjoyment.

The SeaStar Power Steering System was designed specifically to meet this challenge, representing the ultimate in comfort, simplicity, safety and reliability. Superior design and selection of materials, precision manufacturing and rigid quality control all add up to an outstanding rugged product, continuing the SeaStar tradition.

The SeaStar open center Power Steering system has been designed to steer commercial and pleasure boats, requiring a maximum output force of 10,308 lbsf or 45,852 Newtons, or a maximum torque of 66,130 in-lbs or 7,472 Newton meters. If uncertain of your application, or you have special requirements, refer to the SeaStar power steering brochure or consult the factory.

All power steering system components have been designed to the highest standards possible. Please ensure that components not purchased from Teleflex are of the highest quality possible, and are compatible with Teleflex equipment.

SYSTEM COMPONENTS

 

HOW IT WORKS

SeaStar hydraulic power steering uses the ships engine(s) to provide the "POWER" for the power steering system, via an engine or electric motor driven hydraulic pump.

A manual hydraulic steering system consisting of a standard SeaStar helm and a hydraulic steering cylinder, (fitted with an integral servo cylinder and a power steering valve) supplies the "control" portion of the power steering system.

Under normal conditions, with engines running, a hydraulic oil supply is in a stand-by mode, ready to be directed to the steering cylinder as dictated by the steering wheel, servo cylinder and power steering valve.

Turning the steering wheel left or right causes the power system to go from 'stand-by' into 'operating' mode and moves the steering cylinder accordingly.

In the event of a power source failure, hydraulic oil is automatically pumped directly from the steering helm into the servo and steering cylinder, providing the helmsman with manual back-up steering.

An engine room mounted oil reservoir allows easy system fill and assists the in-line oil cooler in cooling the hydraulic oil. An in-line oil filter helps protect the steering system components against contaminants.

 

 

POWER STEERING CYLINDER

 

  Features

  • Effortless steering from docking to top speed
  • Responsive steering 3 1/2, turns lock to lock (or to suit)
  • Automatic manual back up steering
  • Simplified installation
  • Multiple steering stations
  • Easy autopilot interface

 

   

 

  [Dimensions & Specifications]

Cylinder Selection Guide

Cylinder

Part # Displacement Hulls Planing Hulls
(Standard) (Heavy Duty)
Single 9" x 1 Cylinder
Twin 9" x 2 Cylinder
Single 11" x 1 Cylinder
Twin 11" x 2 Cylinder
*Single 9" x 2.5 Cylinder
*Twin 9 " x 2.5 Cylinder
HC5801-2
HC5802
HC5803-2
HC5804
HC5805
HC5806
Up to......50' (15m)
Up to......75' (23m)
Up to......60' (18m)
Up to......85' (26m)
Up to......100' (31m)
Up to......110' (34m)
Up to......40' (12m)
Up to......55' (17m)
Up to......50' (15m)
Up to......60' (18m)
Up to......70' (22m)
Up to......80' (25m)
Up to......65' (20m)
Up to......85' (26m)
Up to......75' (23m)
Up to......100' (31m)
Up to......110' (34m)
Up to......120' (37m)

All* Larger 2.5" cylinder bore than HC5801-2 and HC5802

All boats over 70' should have steering loads reviewed by factory.


Basic System Selection Information

Power Steering Cylinders

Part #s

Single 9" x 1 Cylinder
Twin 9" x 2 Cylinder
Single 11" x 1 Cylinder
Twin 11" x 2 Cylinder
Single 9 " x 1 Cylinder, 2.5" Bore
Twin 9 " x 2 Cylinder, 2.5" Bore

HC5801
HC5802
HC5803
HC5804
HC5805
HC5806

Helms (for 3-1/2 turn system) Part #s
SSI Helm, Standard Mount
SSI Helm, Rear Mount
SSI Helm, Tilt
SSI Helm, Rear Mount, 1" Straight Shaft
SSI Helm, Rear Mount, 1" Shaft
HH5271
HH5261
HH5741
HH5279
HH5281
Power Steering Pumps Part #s
Outlet Check Power Pump
Press Relief Twin Pump
Belt Drive, Right Rotation (Universal)
Belt Drive, Left Rotation (Universal)
Direct Drive, Right Rotation (for Detroit Diesel)
Direct Drive, Right Rotation (for Caterpillar - special order)
Direct Drive, Right Rotation (Spline)
Direct Drive, Right Rotation (2 GPM)
Direct Drive, (for Twin Disk)
Direct Drive, Right Rotation (No Flow Control)
Direct Drive, Right Rotation (4 GPM) (9 Tooth Spline)
Direct Drive, Right Rotation (2 GPM) (11 Tooth Spline)
Direct Drive, Right Rotation (2GPM) (9 tooth spline)
Direct Drive, Left Rotation, (2GPM) (11 tooth spline)
Direct Drive, Left Rotation, (4GPM) (keyed shaft)
Direct Drive, Left Rotation, (4GPM) (11 tooth spline)
Direct Drive, Left Rotation, (4GPM) (9 tooth spline)
Direct Drive, Right Rotation, (2GPM) (6 tooth spline)
Direct Drive, Left Rotation, (6GPM) (9 tooth spline)
Direct Drive, Right rotation, (6GPM) (9tooth spline)
Direct Drive, Right rotation, (6GPM) (11 tooth spline)
Direct Drive, Right rotation, (6GPM) (keyed shaft)
Direct Drive, Left rotation, (6GPM) (11 tooth spline)
Direct Drive, Left rotation, (6GPM) (keyed shaft)
Direct Drive, left rotation, (6GPM) (13 tooth spline)
HP5820
HP5822
HP5830
HP5831
HP5832
HP5833
HP5833
HP5834
HP5835
HP5836
HP5837
HP5838
HP5839
HP5840
HP5841
HP5842
HP5843
HP5844
HP5845
HP5846
HP5847
HP5848
HP5849
HP5850
HP5852
Oil Reservoir, Cooler & Filter Part #s

Oil Reservoir
Oil Cooler, 2.25 kW, 1" water lines
Oil Cooler, 6.25 kW, 2" water lines
Oil Filter

HP5810
HP5825
HP5826
HP5815
Miscellaneous Part #s

Outlet Check Valve (Power Pump)
Auto Flow Control (Twin Pump)
Crossover Pressure Relief
System Pressure Gauge Kit
Adapter Kit, Twin Disk #5050
Adapter Kit, Twin Disk #5061
Adapter Kit, V10 to MAN V-Type Engine
Adapter Kit, V20 Pump to ZF Gear
SeaStar Oil , 1 liter
SeaStar Oil , 4 liter
Pressure Relief Valve (Require when using a power pump
without a built in pressure relief. ALL SeaStar power pumps
will NOT require this valve.)

HP5820
HP5821
HP5822
HA5821
HA5823
HA5824
HA5827
HA5828
HA5430
HA5440
HP5818

 


Fluid/Oil

System designed to use SeaStar Oil (Mil spec H5606) or Dexron II (ATF) if using 1250V or 1275V helms.

 


Hose and Tube

Recommend 100R1 for power circuit, 5/16" ID hose or tube for manual circuit.
* If using 1/4" ID tube, runs should be short and SeaStar oil must be used.

 


Autopilot

An autopilot designed for use with hydraulic steering may be tied into your SeaStar steering system at any convenient point in the helm lines.

Installing shut-off valves in hydraulic lines running from autopilot pump set to steering system lines will simplify trouble shooting and servicing at a later time if necessary.

Autopilot selection must be compatible with oil used in your SeaStar steering system.

Autopilot power pack shaft seal must be able to withstand 30 psi. Contact Teleflex for compatibility information.

Refer to Autopilot section of web site for additional information.