Digi-Troll IV Manual - Cannon Downriggers

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MOUNTING & SETUPSide Rail MountingSide/Rail mounts can be mounted to a weldedT-section. They can also be used at the two railsection butt joint. In both installations it isrecommended to use a non-slip material, such asrubber or a thin wood sheet, between metalsurfaces.You can also use these for mounting to a verynarrow side gunwale. There is a plate provided forback-up with bolts and washers. If the gunwalecompartment is foamed in, then wellnuts shouldbe used. It is also recommended to install twoadditional flat head screws through the top platefor stabilization (you will need to drill andcountersink).Side/Rail on T-SectionSide/Rail on GunwaleNOTE: In no case should this mount be used onfiberglass ¼" thick or less unless it is foamed in.Pedestal MountingPedestals are used wherever additional height isneeded for ease of operation or to clearobstructions, such as handrails.Caution: When using a pedestal mount orside/rail mount, do not extend the telescopicboom on your Mag 20 DT. The increasedleverage will cause excessive strain andpossible failure of the mount.Pedestal for Additional Height4
Installing the Base on Your BoatDecks up to 7/16" thickWhere access to the underside of the deck isnot available, the mounting base can be mountedusing wellnuts. Use the base as a template to marklocations and drill four 1/2" holes. Mount the baseusing four 1/4-20 x 4" truss head screws and fourwellnuts. Tighten the screws so the wellnuts arefirmly compressed as pictured.Decks thicker than 7/16"For decks thicker than 7/16", or where theunderside of the deck is accessible, mount the basewith screws, nuts, and washers. Use the base as atemplate to mark the locations and drill four 9/32"holes. Use four 1/4-20 x 4" truss head screws andfour each flat washers, lock washers, and nuts.Fasten the base to the deck as pictured. NOTE:Wellnuts cannot be used on decks thicker than7/16".Decks thinner than 1/4"Use a <strong>Cannon</strong> deck plate to prevent deflectionand add stability to decks thinner than 1/4". Use thedeck plate as a template tomark the hole locations.Decks up to7/16" ThickDecks ThickerThan 7/16" ThickScrewsBaseWellnutsBaseWasher, Lock Washer,and 1/4-20 Hex NutMOUNTING & SETUPDeck up to 7/16" ThickDeck PlateDeck Thicker Than 7/16"WellnutWashers, LockWashers, Screws,& NutsIf access to the underside of the deck is notavailable, the deck plate can be mounted usingscrews and wellnuts. Drill 1/2" holes. Use four 1/4-20 x 2" flat head screws and four wellnuts to mountdeck plate as pictured. Tighten the screws so thewellnuts are firmly compressed.Where the underside is accessible, the deckplate can be mounted using screws, nuts, andwashers. Drill 9/32" holes. Use four 1/4-20 x 2" flathead screws, nuts and washers (flat and lock).Fasten plate to deck as pictured. To secure themounting base to the deckplate use four 1/4-20 x 2"truss head screws.NOTE: When using the telescopic boom, westrongly recommend the use of a deck plate onall boats to provide adequate stability for thedownrigger.The Low-Profile Swivel Base mounting follows thesame procedure as for the deck plate except thatfour 1/4"-20 x 2 1/2" truss head screws are usedto fasten the mounting base and four additional1/4"-20 x 2 1/2" truss head screws fix the swivelbase to the boat deck.Low-Profile Swivel Base5
Page 3: Downrigger Mounting on BoatsA downr
Page 7 and 8: Terminating the Downrigger CableRub
Page 9 and 10: Wiring Your DownriggerYour Boat's E
Page 11 and 12: Installing the Optional TransducerP
Page 13 and 14: Digi-Troll IV DisplayWhen the power
Page 15 and 16: Bottom Following MenuFrom the depth
Page 17 and 18: The Series Hook Up OptionThe series
Page 19 and 20: How the Positive Ion Control System
Page 21 and 22: Trouble ShootingPROBLEM:In the UP o
Page 23 and 24: CANNON ® LIMITED WARRANTYJohnson O

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