Proper ballast weight is essential to prevent buoy overturning. Carefully consider the site-specific ballast requirements prior to deployment.

A 25 lb. ballast weight is available for installation to the bottom of the instrument cage for additional balance.

1. Begin installation by inserting the 9-3/4” threaded rod section through the ballast weight and bottom of the buoy frame or instrument cage assembly.

Inserting the Threaded Rod

Figure 1: Insert Threaded Rod

 

2. On the bottom end of the rod, tighten a 1-3/4” eye nut with a 1-3/4” lock washer. Tighten the top end of the rod securely to the buoy frame or instrument cage with a 1-3/4”-10 nut and 1-3/4” lock washer. Weld the connections to prevent loosening in rough water.

Securing the Ballast Weight

Figure 2: Tighten a 1-3/4” eye nut with a 1-3/4” lock washer on the bottom of the rod.

Securing the Ballast Weight

Figure 3: Tighten the Top End of the Rod to the Instrument Cage or buoy frame with a 1-3/4″-10 nut and 1-3/4″ lockwasher.

 

REV: 13J20

 

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