2.3.2 Transfer of Holes to Boat Structure

1. Lower installation template fixture onto hull structure.
2. The four areas where the feet of the Seakeeper will rest should be coplanar to within 0.06 in. (1.5 mm).
3. Align fixture in desired location and transfer holes from fixture plate to the hull structure.

Blind Hole Installation

1. Remove Template Fixture and drill eight (8) 0.625 in. (15.875 mm) holes perpendicular to the vessel structure to a minimum depth of 1.25 in. (31.75 mm). Take special care to drill perpendicular to mounting surface. A drill guide is recommended. Remove any impeding obstructions.
2. Tap drilled holes for helical thread inserts per documentation accompanying helical thread inserts.
3. Install eight (8) M16 – 2.0 X 24 mm threaded inserts into holes in hull structure at drilled and tapped locations using thread insert manufacturer provided installation tool.
4. Remove thread insert prong / tang after thread inserts are installed.

5. Lower Seakeeper 4 / 4.5 onto stringer over prepared holes.
6. Install fastener hardware per installation drawings.
7. Torque fasteners to 155 ft-lbs (210 Nm).

Through-Hole Installation

1. Remove Template Fixture and drill eight (8) 0.669 in. (17 mm) ø holes perpendicular to the vessel structure. Take special care to drill perpendicular to mounting surface. A drill guide is recommended.

2. Lower Seakeeper 4 / 4.5 onto structure over prepared holes.
3. Install fastener hardware per installation drawings.
4. Torque fasteners to 155 ft-lbs (210 Nm).