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FOR MAG 10 HS and MAG 10 TS:
The Low-Profile Swivel Base mounting follows the
same procedure as for the deck plate except that
four 1/4”-20 x 2 1/2" truss head screws are used
to fasten the mounting base and four additional
1/4”-20 x 2 1/2" truss head screws fix the swivel
base to the boat deck.
If access to the underside of the deck is not
available, the deck plate can be mounted using
screws and wellnuts. Drill 1/2" holes. Use four 1/4-
20 x 2" flat head screws and four wellnuts to mount
deck plate as pictured. Tighten the screws so the
wellnuts are firmly compressed.
Where the underside is accessible, the deck
plate can be mounted using screws, nuts, and
washers. Drill 9/32" holes. Use four 1/4-20 x 2" flat
head screws, nuts and washers (flat and lock).
Fasten plate to deck as pictured. To secure the
mounting base to the deckplate use four 1/4-20 x 2"
truss head screws.
NOTE: When using the telescopic boom, we
strongly recommend the use of a deck plate on all
boats to provide adequate stability for the
downrigger.
Installing the Base on Your Boat
Decks up to 7/16" thick
Where access to the underside of the deck is
not available, the mounting base can be mounted
using wellnuts. Use the base as a template to mark
locations and drill four 1/2" holes. Mount the base
using four 1/4-20 x 4" truss head screws and four
wellnuts. Tighten the screws so the wellnuts are
firmly compressed as pictured.
Decks thicker than 7/16"
For decks thicker than 7/16", or where the
underside of the deck is accessible, mount the base
with screws, nuts, and washers. Use the base as a
template to mark the locations and drill four 9/32"
holes. Use four 1/4-20 x 4" truss head screws and
four each flat washers, lock washers, and nuts.
Fasten the base to the deck as pictured. NOTE:
Wellnuts cannot be used on decks thicker than
7/16".
Decks thinner than 1/4"
Use a Cannon deck plate to prevent deflection
and add stability to decks thinner than 1/4". Use the
deck plate as a template to
mark the hole locations.
Deck Up to
7/16" Thick
Deck Thicker Than 7/16"
Washers, Lock
Washers, Screws,
& Nuts
Deck Plate
Wellnut
Screws
Decks up to
7/16" Thick
Base
Wellnuts
Decks Thicker
Than 7/16" Thick
Washers, Lock Washers,
Screws, & Nuts
Low-Profile Swivel Base
MOUNTING & SETUP
Base