The CB-CCA cage clamp accessory securely connects an instrument cage to the frame of a CB-Series data buoy system and prevents rotation or loosening of the cage.

What’s Included

  • (1) Cage security bracket
  • (2) End plates
  • (1) ¾” bolt, 4-½”, with pinhole
  • (3) ¾” bolts, 4-½”
  • (1) ¾” castle nut
  • (3) ¾” nuts
  • (4) ¾” lock washers
  • (1) Cotter pin

Figure 1: Included Items


  1. Place the cage security bracket onto the ends of the cage and frame.

    Figure 2: Place Bracket

  2. Run the bolt with pinhole downward through the buoy frame so that the bottom sticks out through the center of the cage. Place a lock washer and the castle nut onto the bolt. Use a pair of 1-1/8” or adjustable wrenches to tighten the castle nut so that the cage cannot spin around the bolt and the pinhole aligns with the ridges in the nut. A large amount of force is needed to properly tighten the nut. Do NOT install the cotter pin yet.

    Figure 3: Install Center Bolt

  3. Place the end plates over the center bolt and secure with the three remaining bolts, lock washers and nuts. Tighten each securely.

    Figure 4: Install End Plates and Bolts

  4. Run the cotter pin through the hole in the center bolt and bend the long leg around one of the ridges on the castle nut.

    Figure 5: Secure with Cotter Pin


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