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. 
Figure 36 – Measuring Port Side, Outboard, Transom Angle

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 75MM BOLT LENGTH 40mm BOLT LENGTH 
91 
92 
93 
94   
95 
96 
97   
98 
99   
100   
101 55mm BOLT LENGTH 35mm BOLT LENGTH 
102   
103   
104     
105   
106   
107     
108     
109     
110