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If the power steering system cannot be corrected on
board, proceed at a reduced speed. The boat will be
steerable, but with increased effort. Contact your Four
Winns dealer as soon as possible to correct the power
steering system.
It is important that the power steering fluid be main-
tained at the proper level. Do not over fill the power
steering pump reservoir. Please consult the section in
the engine manual regarding steering system and
maintenance. The engine manual is included in the
owner's packet.
Check the power steering fluid level in the
reservoir periodically. Low power steering fluid
levels may in crease steering difficulty.
NOTICE
DO NOT force the s teer ing unit to ei ther
ex treme. This can place undue strain on the
unit and can lead to hydrau lic line or seal
fail ure.
Full lock when driving at high speed will make
the boat turn strongly, which entails a great risk
of personal injury, and/or people aboard may
fall over or be thrown overboard. Warn every-
body aboard before doing any emergency
maneuvers.
C. Hydraulic Steering - Inboard
NOTICE
DO NOT force the s teer ing wheel to ei ther
ex treme position. This can place undue strain
on the unit and can lead to hydraulic steering
damage.
Upon commissioning the boat, it is necessary to
purge the system of air. This is performed by your
Four Winns dealer during pre-delivery service.
Should steering difficulty increase with time, it is
possible additional bleeding of the system is required.
See our Four Winns dealer for assistance. This and
other adjustments on hydraulic steering units are
critical and should be performed only by a qualified
service technician.
Steering Systems - Section G
After the first two hours of running time, check
the entire steering system for loose bolts, nuts
and fasteners which could adversely affect
steering control.
Check the fluid level in the reservoir
periodically. Low hydraulic fluid levels may
increase steering difficulty.
The hydraulic steering system is comprised of the
helm pump and reservoir, hydraulic hoses, and the
hydrau lic cylinder. The helm assem bly acts as a pump
to move the fluid through the system. In many aspects
this type of steering is similar to the mechanical
system. Instead of activating a cable, turning of the
helm causes fluid in the hydraulic hoses to flow and
activate the hydraulic cylinder causing the rudders to
turn. See Figures G3 & G4.
NOTICE
Only use manufacturer's suggested hydraulic
fluid. The hydraulic steer ing uses a fluid which
meets Mil H5606 specifications. Please note
that automatic trans mission fluid (Dexron II)
may be used in an emergency. Never use
brake fluid.
NOTICE
A slight clicking sound may be heard as the
wheel is turned. This sound is the open ing and
closing of valves in the helm unit; this is normal.
Addi tional infor mation on steer ing opera tion can be
found in your engine owner's manu al.
D. Electronic Vessel Control (EVC)
On V series models, where the steering system is
operated through the Electronic Vessel Control (EVC)
system, a smooth and exact steering is delivered. It
offers steering capabilities which are not possible with
traditional steering systems.
The helm steering unit sends an electrical signal via
the EVC system to the servo unit steering (SUS) on
the drive-unit. The electronic steering is progressive
and the turn rate automatically adjusted to suit the
actual boat speed for optimized comfort and boat
Owner's Manual Page 74
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