Cannon 2207003 Manuel D'instructions page 2

Mounting the Swivel Base
Decks Less Than 7/16" Thick: Where access to the underside of the deck is not available, the swivel
base can be mounted using wellnuts. Use the base as a template to mark locations and drill four 1/2"
holes. Using four 1/4"-20 x 2.25" truss head bolts and four wellnuts, mount the base. Tighten the
screws so the wellnuts are firmly compressed as pictured (see Figure 1).
NOTE: Wellnuts cannot be used for decks thicker than 7/16".
Decks More Than 7/16" Thick: For decks thicker than 7/16" or where access to the underside of the
deck is available, the swivel base can be mounted using bolts, nuts, and washers. Use the base as a
template to mark locations and drill four 9/32" holes. Using four of each 1/4"-20 truss head bolts, flat
washers (not included), lock-washers, and nuts, mount the base as pictured (see Figure 2).
NOTE: Thickness of boat deck will determine length of bolt required.
Decks Less Than 1/4" Thick: To prevent deflection and add stability to decks thinner than 1/4", we rec-
ommend using a Cannon Deck Plate (part no. 2200693). To mount the Deck Plate, use it as a template
to mark hole locations. Fasten it to your boat with four 1/4"-20 flat head machine screws with wellnuts,
if you cannot access the underside of the deck, or with washers and nuts if you do have access under
the deck (see Figure 3).
IMPORTANT: We highly recommend using the Deck Plate for downriggers with telescopic booms
2
DECKS UP TO
7/16" THICK
DECKS OVER
7/16" THICK
DECKS UP TO
7/16" THICK
WELLNUT
BASE
FIGURE 1
WELLNUT
BASE
WASHER
LOCK WASHER
NUT
BASE
Deck Thicker Than 7/16"
FIGURE 3
FIGURE 2
CANNON
DECK PLATE
WASHER
LOCK WASHER
NUT