Seakeeper 7HD - Bolt-In Installation; Check and Preparation of Hull Structure; Exploded View of Installation Fixture

INSTALLATION
MANUAL
Product:
Document #:
Rev:
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SEAKEEPER 9 / 7HD
90222
9
8 of 20
Section 1: MECHANICAL INSTALLATION
1.5 Bolt-In Installation
1.5.1 Preparation of Hull Structure
Refer to Seakeeper Drawing No. 90225, Seakeeper 9/7HD Installation Details – Bolt in
Method. Important dimensional and load information is given in this drawing that will impact the
design details of the structure that will receive the Seakeeper. It is assumed that a proper
structural analysis has been performed for the hull structure to which the Seakeeper will be
fastened to ensure proper strength margins for the loads the Seakeeper will create during
operation. Seakeeper recommends a safety factor of 3.0.
The hull structure supporting the Seakeeper should be installed so the Seakeeper is parallel to
the waterline in the transverse direction and within 2 degrees longitudinally. In addition, the four
areas on top of the structure on which the Seakeeper 9 frame and isolation gaskets will
rest, need to be co-planar within .06” (1.5 mm) to minimize potential distortion of Seakeeper
support frame when installed. The isolation gaskets are only used when the Seakeeper 9
is mounted to a dissimilar metal structure.
Seakeeper 9 provides an installation template kit, P/N 90253, which contains plates that match
the mating surfaces of the four feet located on the Seakeeper’s frame. These plates have 4 holes
located at the same centers as the mounting holes on the Seakeeper. The fixture locates the hole
patterns at the proper spacing both in the fore-aft direction and the port-starboard direction. See
Figures 5 below. Once assembled, the fixture can be used to check clearances and alignment of
the hull structure.
Note: Do NOT use the installation fixture to establish the Seakeeper envelope dimensions.
Refer to Drawing No. 90225 for envelope dimensions. A 3-D Envelope model of the
Seakeeper is available on the Seakeeper Technical Library
(
0TU www.seakeeper.com/technical-library/ U0T ) to aid in designing the Seakeeper foundation and
the space around the Seakeeper.
NOTE: MAKE SURE NO OBSTRUCTIONS FROM THE HULL STRUCTURE CAN BE SEEN WITHIN THE INSIDE
OF THE INSTALLATION TEMPLATE KIT (INSIDE THE MARKED RED LINES) AS SEEN IN FIGURE 5.
REFERENCE SEAKEEPER DRAWING NO. 90225.
FIGURE 5 – EXPLODED VIEW OF INSTALLATION FIXTURE