INSTALLATION
MANUAL
Product:
Document #:
Rev:
Page:
SEAKEEPER 26 / 20HD
90265
7
7 of 21
Section 1: MECHANICAL INSTALLATION
1.5 Bolt-In Installation
1.5.1 Check and Preparation of Hull Structure
Refer to Seakeeper
Drawing No. 90271, Seakeeper 26/20HD 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.
Two bolt-in kits are available:
1) Through-Bolt, reference drawing 90086
2) Blind-Hole, reference drawing 90614
The hull structure supporting the Seakeeper should be installed so the Seakeeper is parallel to
the water plane in the port/starboard and forward/aft directions.
In addition, the four areas on
top of the beams on which the isolation mounts will rest need to be co-planar within 1/8
th
inch (3 mm) to minimize potential distortion of Seakeeper support frame when installed.
(Similar to Figure 9).
Seakeeper provides an installation fixture assembly, P/N 90089 that contains four plates that
mimic the mating surfaces of the four isolation mounts located on the
Seakeeper’s foundation.
These plates have 8 holes located at the same centers as the holes in the isolation mounts. These
smaller holes can be used to locate the holes in the
ship’s structure through use of a transfer punch. The
fixture locates the hole patterns at the proper
spacing, both in the fore-aft direction and the port-
starboard direction. See Figures 5 & 6 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. 90271 for envelope
dimensions. A 3-D model of the Seakeeper is
available
on
the
Seakeeper
website
) to aid in designing the
Seakeeper foundation and the space around the
Seakeeper.
Figure 5
– Exploded View of Installation Fixture
