This dual mode combination single lever is Kobelt’s latest
development in providing Full Follow Up rudder control with a
jog steering as the secondary control. The 7197 is intended for
electric over hydraulic steering systems. To complete the
systems, a 7173-K steering amplifier, a steering (directional
control) solenoid valve and rudder feedback unit complete with
potentiometers and limit switches is required. For systems with
more than one station, a transfer box and station selector
switches at each station are also needed.
Operating the FFU lever controller will activate the amplifier and cause the steering hydraulic
steering gear to move in the desired direction. When the handle is released, the FFU lever stays
in that position and the steering gear will continue to move (“FOLLOW UP”) until it reaches that
preferred position, at which point the amplifier will de-activate the solenoid and the steering gear
stops and holds in that position.
In the event a problem occurs with the steering amplifier or the rudder feed back unit, you can
switch to jog steering (non-follow up) mode. Whilst in this mode, steering can be achieved by
pushing the lever hard over against the enclosed spring. Releasing the handle will cause the
lever to spring back about five degrees; the steering gear stops and does not move until you
operate the jog lever again.
The standard 7197 comes with one potentiometer and two switches. Up to three potentiometers
and two limit switches are available. Other optional items such as a 7180 (2-1/8” diameter)
indicator or mode selector switches and/or station transfer switches can be added. The controller
(with the exception of switches and potentiometers) is constructed entirely of die cast bronze
complemented by stainless steel hardware for longevity in a marine environment.