13
Running in Water Mode
DuoGen’s alternator yoke allows
freedom of movement in two
planes so that wave and helm
action can be accommodated.
WARNING: the DuoGen
should never be allowed to
operate if it is not connected
to a battery. This condition
allows the machine to
over-speed and very high
voltages can be produced.
NOTE:
Although you can motor
slowly
astern with the DuoGen
deployed,we
recommend that it is not
deployed until the yacht is
moving slowly ahead.
Water Mode 2
Water Mode 2
Water Mode 2
Water Mode 2
Due to its closed cell foam filling the yaw arm is naturally buoyant.
However, if the yacht is stationary and a sea is running, the relative
movement of the yacht and the DuoGen can cause the tower to
bump against the transom of yachts with retrousse sterns.
To avoid this, tie a loop in the recovery lanyard and drop it over the
hook incorporated in the upper tower clamp assembly. Adjust the
length of the line such that it becomes taut just before the DuoGen’s
tower contacts the yacht’s transom.
Note that using the recovery lanyard to limit downwards travel of the
DuoGen is very important, particularly when the unit is installed on a
multihull. Catamaran hulls can ‘bridge’ a wave and trough, allowing
an unrestrained DuoGen to fall almost to the vertical. Once in this
position, the horizontal pivot at the ‘c’ bracket can no longer
effectively dissipate side forces, and damage to the yoke and
alternator casting may result.
In normal operation when the yacht is underway, the recovery line
will hang loose, as the DuoGen rides on its diving plane at an angle
of 35 - 40º to the water surface.
Having deployed the DuoGen water mode, ensure that you
release the alternator yoke by unscrewing the black
thumbscrew on the ‘C’ bracket.
This allows the alternator yoke to pivot laterally.
To deploy in water mode:
raise the yaw arm to the top of the tower.
You must ensure that the spring plunger is located in the
locking hole at the top of the tower.
This prevents the yaw arm from rotating around the tower and
‘capsizing’ the water impeller when underway
to locate the locking mechanism, align the etched marks on
the yaw arm with the top of the main tower.
release the spring plunger by rotating the black ball knob anti-
clockwise (downwards), and move the yaw arm gently side to
side until the spring plunger clicks into the lock hole
remove the upper tower clamp locking pin and unscrew the
thumb nut on the retaining bar and pivot it clear of the tower
holding the recovery lanyard, push DuoGen backwards freeing
the tower from the tower clamp.
the unit can now be gently lowered into the water using the
recovery lanyard
