WAGNER Stati-Kit 2000 0292003 Spezifikationen PDF herunterladen

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Engine & Steering Controls

Points to consider when selecting a mechanical steering system

Plan the most direct cable route. Keep the number of

bends to a minimum and do not bend the cable less than

the minium specified bend radius. The trim settings of

outboards and sterndrives can markedly affect steering

loads and boat maneuverability. The motor trim tab

should be set in accordance with the motor manufacturer's

recommendations. The boat should also be tested for ease

of steering through the full range of motor trim angles

since varying trim angles can change steering loads on

any given system.

The mounting position of the outboard also affects the

steering and boat handling characteristics. Mounting

specifications established by the boat builder and engine

manufacturer should be adhered to strictly.

The proper steering system is a critical factor in achieving good boat handling

performance and safe operation. The combination of engine horsepower,

propeller torque, hull design and boat speed exerts varying loads on steering

systems. Because the resulting steering forces vary considerably from boat

to boat and motor to motor, extreme care must be taken to ensure the steering

system you select matches the application.

The following guidelines have been developed to assist you in making a

steering system selection, and in particular alert you to potential problem

areas.

•Steering forces increase considerably when the speed and horsepower of

the boat increases. High performance boats often leave and re-enter the

water momentarily, creating High shock loads on the steering system. In

addition, certain hull designs may have a tendency to lose stability at high

speeds, a condition commonly called "chine walk."

•The speed at which instability begins to occur varies significantly among

different type boats. A Morse twin cable or hydraulic steering system is

generally recommended for boats moving at higher speeds.

•Corrosion of steering cables can lead to stiff operation and complete

seizure. The steering cable should be regularly inspected for cracks or cuts.

If found, the cable should be replaced. If there are no signs of cracking, the

cable output end and the engine tilt tube should be cleaned thoroughly,

coated with a quality marine lubricant, then properly reassembled and

maintained according to the engine manufacturer's specifications. Corro-

sive buildup can be minimized through this simple routine maintenance.

Whenever possible, the boat builder and dealer should select Morse cables

which all have Stainless Steel output ends to reduce corrosion, especially

on boats used in salt water. Even then, if a boat is not going to be used for

extended periods of time, it is recommended to completely remove the

cable output end from the thru tube and properly prepare for storage.

•The routing of steering cables is also an important consideration. Multiple

bends in the cable and small bend radii will contribute to cable backlash

and steering inefficiency. Cables should be routed with as few bends as

possible and with the optimum radii achievable.

•Excessive cable length results in excess bend radius, contributing to

excess backlash and cable inefficiency. If an installation requires a 16 ft.

cable, a 16 ft. cable should be used. Do not add unnecessary length.

•Larger boats with displacement hulls and inboard rudders can create

steering loads that exceed the capacity of the mechanical steering systems

commonly used on runabouts. Hydraulic steering systems are better suited

to function under high steering loads.

•Although Morse Controls designs and manufactures steering systems to

meet existing industry standards, the boat builder and dealer are ultimately

responsible for determining the particular steering system best suited for

the intended application. For further technical assistance in specifying

steering systems contact Morse Controls.

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