Logo
Launch the site guide

Hynautic Heavy Duty Hydraulic Steering

113
®
HYNAUTIC HEAVY DUTY
HYDRAULIC STEERING
SYSTEM:
This system is designed for sterndrive,
outboard and inboard boats requiring
external cylinders of substantial size and
strength. The K-5 cylinders are nickel plated
for aesthetics and protection against the
elements. System components are sold
separately. The required wing plates and
hardware are not available from SeaStar
Solutions. Systems can be selected using either the
easy-to-install Capilano 2-line systems (with variable-
displacement helm) or the traditional Hynautic 3-line
configurations.
HELM
DISTANCE — CYLINDER TO FURTHEST HELM
TYPE
40 Feet or Less
More Than 40 Feet
ALL
1/2" O.D. Copper Tubing
5/8" O.D. Copper Tubing
TUBING DIAMETERS:
HYNAUTIC®
HEAVY DUTY
STERNDRIVE SYSTEM
HYNAUTIC COMPONENTS
Hynautic H-40 Helm
(1” straight shaft)
H-42 or
HynauticH-40 Helm
(3/4” tapered shaft)
Hynautic H-40 Helm
(1” straight shaft)
H-41 or
Hynautic H-40 Helm
(3/4” tapered shaft)
H-40 Fittings Kit for Main Station
H-40 Fittings Kit for Second Station
External Sterndrive Cylinder
K-5-B (2 required)
Reservoir - Standard (2 quart)
Relief Valve (950 PSI)
Relief Fittings
Relief Fittings
Copper Tubing
1/2” or 5/8” OD
Fitting Kit (for 1/2” Copper Tubing)
Fitting Kit (for 5/8” Copper Tubing)
SeaStar Oil (2 Quart Mil Spec H5606)
OPTIONS
Add-A-Station Fitting Kit (1/2” tubing)
Add-A-Station Fitting Kit (5/8” tubing)
SERVICE ITEMS
Reservoir (2 quart, with hand pump)
Relief Valve (500 PSI)
SeaStar Oil (1 Gallon)
HELM
NUMBER OF
RELIEF
HELM
DISPLACEMENT WHEEL TURNS
VALVE
PART#
RANGE
LOCK-TO-LOCK
SETTING
USING HYNAUTIC (FIXED DISPLACEMENT) HELMS:
4.0 cu. in.
7.0
950 PSI
5.5 cu. in.
5.1
950 PSI
HELM OPTIONS:
STEERING - Sterndrive (Hydraulic)
See Page 148

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.