2.4.4 Installation of Seakeeper

  1. Lower Seakeeper into position onto the hull foundation beams and align over drilled holes. Apply a small bead of marine sealant (e.g., SILI-THANE 803 or equivalent) between mating surfaces of Seakeeper frame and hull structure to prevent moisture wicking into bolt holes.
    1. For dissimilar metal foundations, locate and position the 4 isolation gaskets (P/N 10860) onto foundation beams and apply a small bead of marine sealant (e.g., SILI-THANE 803 or equivalent) between both mating surfaces of each isolation gasket where it contacts the beam and Seakeeper.
  2. Install Mounting Bolts, as shown in Figure 10:
    1. For Blind-Hole installations (P/N 90642 – Seakeeper 9 Bolt-In Installation Kit), install the Seakeeper supplied Grade 10.9, M14-2.0 x 85 mm fasteners or alternative Grade 10.9, M14-2.0 bolts to maintain a minimum thread engagement of 0.90 in. (23 mm). Apply a moderate coat of nickel-based anti-seize (e.g., SAF-T-EZE nickel-based anti-seize, SBT-4N or equivalent) to the threads of each bolt and include a small bead of marine grade sealant (e.g., SILI-THANE 803 or equivalent) under each bolt head and washer before installation.
    2. For Through-Bolt Installations (P/N 90643 – Seakeeper 9 Through-Bolt Installation Kit), install the Seakeeper supplied Grade 10.9, M14-2.0 x 100 mm fasteners or alternative Grade 10.9, M14-2.0 bolts to maintain a minimum of 2 threads protruding past nut. Apply a moderate coat of nickel-based anti-seize (e.g., SAF-T-EZE nickel-based anti-seize, SBT-4N or equivalent) to the threads of each bolt and include a small bead of marine grade sealant (e.g., SILI-THANE 803 or equivalent) under each bolt head and washer before installation.
  3. Torque all fasteners to 100 ft-lbs (135.6 N-m).
    1. New bolts, matching the Seakeeper specification, must be used for each installation and reinstallation that meet the requirements listed above.
  4. Proceed to electrical and cooling portion of the installation.
Figure 10 – Blind Hole (Left) and ThroughBolt (Right) Details Shown
(Measurements in brackets are in inches; measurements not in brackets are in millimeters)