18
DETERMINING THE PROPER WIDTH
The proper width of the bunk system depends on
the contour of the boat hull. As a rule of thumb,
the bunks should be spread as wide as possible.
If the boat is on a trailer, measure the width that
will provide optimal support and hull t. The setup
of the trailer bunks may provide a helpful guide.
See Figs. 37-38.
CRADLE PAD PIVOT BUNKS
Cradle pivot bunks are ideal for most lightweight
V-hull watercraft. They can be located in a V-
position at both the front and rear of your boat,
or turned so that the padded extrusions on the
rear pair run parallel with the boat’s hull. Like the
full-length bunks, the cradle pads will adjust both
vertically and horizontally (Fig 40). The support
tube clamps adjust in the same way as the bunk
clamps (Fig 41). This extensive adjustment ca-
pability gives you the exibility to t the system to
your boat’s hull design.
The best set-up will ensure that, as the boat is
being raised, it does not lean to one side or the
other and that once it is raised, the boat will be
held completely stable.
Fig. 37 - Ideal bunk placement - Note
that the bunks are spread out to the wid-
est position on the boat hull. They sit
nicely into the contour of the hull and the
keel has plenty of clearance above the
main lift beam. If possible, this is the most
ideal bunk placement for non-inboards.
Fig. 38 -
Bunk height recommended for
inboards
- The bunks are spread wide
and the hull is lifted so that the running
gear on an inboard can pass over the
main lift beam without making contact.
Fig. 39 - Less desirable bunk place-
ment - Ideally in the above example,
the lift bunks would have
been positioned
wider as in Figs. 37-38.
Doing so would
have allowed the bunks to be set higher,
preventing the vertical tubes from stick-
ing so far below the main lift beam.
If the lift is in shallow water, and after nal adjustment these
tubes stick too far below the main lift beam, they may need
to be cut off ush so that they do not hit the lake bottom and
prevent the lift from lowering completely.
Never operate a boat lift that is not level. Under
normal conditions a boat lift operates under extreme
force. When the lift is not level, these forces are
greatly multiplied and bodily injury or damage to
the lift can result.
WARNING
FIG 40
Adjust vertically
and horizontally
FIG 41
To adjust the width,
loosen the bolts on the
lower part of the clamp
and slide it into position.
Torque to 35 ft. lbs.
To adjust the height, loosen the
clamp bolt and raise the tube to
the proper location. Torque to
45 ft. lbs.
Never attempt to adjust
the bunk system (or any
boat lift component) with
the weight of the boat
on it. Doing so could
kill or cause serious
bodily injury due to
a fast dropping boat.
DANGER
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