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Teleflex Capilano Inboard Hydraulic Steering Systems




Technical Reference Manual





Uncompromising Design. Capilano steering stands for ruggedness and reliability worldwide. Helms include a variable displacement feature enabling the helmsman to adjust the number of steering wheel turns to suit maneuvering and weather conditions. Capilano systems install easily and give years of dependable service.

Applications:

Most inboard powered boats with single or dual engines including planing/displacement hull craft from 30-55 feet in length. Suitable for dual station use with the purchase of extra helm, tubing/hose & fittings. Capilano systems use Dexron II type ATF fluid.(SINGLE STATION)


Features:
  • Variable displacement helms for adjustable number of steering wheel turns.
  • Heavy duty brass cylinders with bleed fittings; chrome-plated stainless steel rods.
  • Stainless steel and bronze mounting hardware.
  • Easy installation on single and dual rudder vessels.
  • Systems are not air-pressurized; no air leaks or pressure drops; separate reservoir not needed.
  • Built-in pressure relief in helm protects system from effects of thermal expansion.
  • Standard 3/4" tapered steering shaft.
  • Meets ABS/Lloyd/Det Norske Veritas specifications.







How to Spec a System:
  • 1. From the application guide select components appropriate for the vessel based on:
  • a) hull type displacement or planing; b) length of vessel; and c) number of steering wheel turns desired.
  • 2. Select the fitting and hose kits required, based on type of plumbing (1/2" or 5/8" tubing or hose) and based on number of steering stations.
  • 3. Confirm that there is sufficient space available in the dash and engine compartment(s) for the steering components. See helm and cylinder dimensions at the end of this section.


Complete Systems:

System components sold separately. See application guide to select appropriate items.



Components:

Options:
  • Dual Cylinder Hose 2" (.6m)..................HA5732
  • Dual Cylinder Hose 3" (.9m)..................HA5733
  • Dual Cylinder Hose 4" (1.2m)................HA5734
  • Dual Cylinder Hose 5" (1.5m)................HA5735
  • Dual Cylinder Hose 6" (1.8m)................HA5736
  • These hoses are sold individually (four are required for dual cylinder installations).
  • Fixed Mount Cylinder (13.3 cu. in.)
  • (one ball joint end)......................................K-22
  • Fixed Mount Cylinder (13.3 cu. in.)
  • (two ball joint ends).....................................K-27
  • Pivot Mount Cylinder (25.5 cu. in.).............K-31
  • Universal Mount Cylinder (39.2 cu. in.)........K-8
  • Universal Mount Cylinder (55 cu. in.)...........K-9
  • Add-A-Station Fitting Kit (1/2" tubing)....HF5591
  • Add-A-Station Fitting Kit (5/8" tubing)....HF5593
  • Helm Remote Fill Kit (through-dash).....HA5450


Service Items:
  • Steering Fluid..............................Dexron II ATF
  • Steering Wheel Locknut.........................747521



Application Guide: Capilano 2-Line Inboard Steering

This application guide should be used with discretion. The chart below is only a guide to selecting a steering system. A steering system manufacturer cannot anticipate all the variables in boat-rudder design that affect steering loads. It is the final responsibility of the boat designer/builder to specify maximum expected steering loads.

If the required information is not available, contact our customer service department at 604-270-6899 with rudder dimensions, vessel size and anticipated maximum vessel speed.

Definitions of terms used in the charts on these pages:

Planing Hull: maximum hull speed normally exceeds 18 knots.

Displacement Hull: maximum hull speed does not normally exceed 18 knots.

Diameters: Copper tubing diameter shown is O.D. Hose diameter shown is I.D.


NOTE: Theoretical torque about pivot point at 35 degress articulation with 1,000 PSI (70 BAR) system pressure.



Helm Options

A unique variable displacement feature on the helm allows the number of steering wheel turns to be adjusted by the helmsman to his preference within a pre-determined range.



Tubing/Hose Options

We recommend use of soft refrigeration type copper tubing for optimum performance. If hose must be used, select a hydraulic hose rated for 1000 PSI (70 bar) working pres sure, and with a very low volumetric expansion rating. A hydraulic hose that expands too much at 500 PSI (35 bar) will make the steering spongy.



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.

Also available are fixed mount cylinders K-22/ K-27 (13.3 cu. in. displacement); pivot mount cylinder K-31 (25.5 cu. in.); and universal mount cylinders K-8 (39.2 cu. in.) and K-9 (55 cu.in.). See cylinder specifications and dimensions, later in this catalog, for more information. The number of steering wheel turns is based on total displacement of the cylinder(s) divided by the displacement of one helm.





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