Mechanical Installation Manual (750, 750 Quad)
6.1 Measurement Steps
- Using the selected Controller locations from Section 5, measure the angle with a digital protractor from the running surface to the transom, perpendicular to the deadrise. See the figure below for an example of the measurement on the port Controller, outboard location.
- Measure the inboard and outboard ends of the port 1 Controller area and use the larger angle in the following Sections. Round up to the nearest degree.
- Measure inboard and outboard ends of the starboard Controller area and use the larger angle in the following Sections. Round up to the nearest degree. As with every step, repeat measurement process for both port and starboard sides. Note: It is possible to find different angles between port and starboard side of the hull.
- For Quad Systems
- Measure the inboard and outboard ends of the port 2 Controller area and use the larger angle in the following Sections. Round up to the nearest degree. Note: It is possible to find different angles between port 1 and port 2 locations.
- Measure the inboard and outboard ends of the starboard 2 Controller area and use the larger angle in the following Sections. Round up to the nearest degree. Note: It is possible to find different angles between starboard 1 and starboard 2 locations.

5. Determine the number of Wedge Plates required for each Controller’s Wedge Pack using the transom angle measured previously and Table 3.

The transom and Wedge angles indicated in the Table 3 are the maximum range of the product. If the boat’s transom angle is outside the range of Table 3, do not add or remove more Wedges to accommodate the different angle. Contact Seakeeper to determine the best course of action.
Table 3 – Transom Angle and Wedge Plates
TRANSOM ANGLE | 3 DEGREE | 4 DEGREE | 5 DEGREE | Top Bolt | Bottom Bolt |
90 | 3 | 1 | 2 | 75MM BOLT LENGTH | 40mm BOLT LENGTH |
91 | 3 | 2 | 1 | ||
92 | 1 | 2 | 2 | ||
93 | 2 | 1 | 2 | ||
94 | 3 | 2 | |||
95 | 3 | 1 | 1 | ||
96 | 1 | 1 | 2 | ||
97 | 2 | 2 | |||
98 | 2 | 1 | 1 | ||
99 | 2 | 2 | |||
100 | 1 | 2 | |||
101 | 1 | 1 | 1 | 55mm BOLT LENGTH | 35mm BOLT LENGTH |
102 | 2 | 1 | |||
103 | 2 | 1 | |||
104 | 3 | ||||
105 | 1 | 1 | |||
106 | 1 | 1 | |||
107 | 2 | ||||
108 | 1 | ||||
109 | 1 | ||||
110 | 1 |