12If you will not have access to the back of the device after youmount it, connect all necessary cables to the device beforeplacing it into the cutout.NOTE: To prevent corrosion of the metal contacts, coverunused connectors with weather caps.13Install the rubber gasket pieces on the back of the device.The pieces of the rubber gasket have adhesive on the back.Make sure you remove the protective liner before installingthem on the device.14Place the device into the cradle.15Securely connect each cable to a port on the cradle.16Place the locking bracket over the cables.17Place the device into the cutout.18Secure the device to the mounting surface using the includedscrews.19Install the trim caps by snapping them in place around theedges of the device.Installing the Swivel BasePreparing to Run Cables under the Mounting SurfaceNOTICEUse pan-head screws or bolts when securing the swivel-mountbase. Screws or bolts with countersunk heads damage thebase.Before you can prepare the swivel-mount base, you mustchoose the location to install the mount and decide whether toattach the mount using screws or bolts.1 Remove the 10 mm M6x1 Phillips screw À and separate theswivel mount Á from the base Â.2 Orient the swivel base so the pass-through holes à face thedesired direction.3 Using the swivel base as a template, mark the pilot holelocations Ä.4 Mark the cable routing hole Å.5 Using the appropriate drill bit for the hardware, drill the threepilot holes.6 Using a 5/8 in. (16 mm) drill, drill a hole through the mountingsurface at the location you marked in step 4.Fastening the Swivel Mount without the CablesRunning through the MountYou should complete this procedure only if you are not runningthe power and transducer cables under the mounting surfaceand through the swivel-mount base.1 Place the base À on the mounting surface, and fasten itusing the appropriate screws or bolts Á.2 Place the swivel mount on the base, and replace the 10 mmM6×1 Phillips screw.3 Seal the cable pass-through holes with marine sealant.Fastening the Swivel Mount with the Cables Runningthrough the MountYou should complete this procedure only when running thepower and transducer cables under the mounting surface andthrough the swivel-mount base.1 Feed the cables through the 16 mm (5/8 in.) center hole youdrilled when preparing to run cables beneath the mountingsurface.2 Place the base on the mounting surface.3 Route the cables through the cable pass-through holes.4 Loosely fasten the base using the appropriate screws orbolts.5 Place the swivel mount on the base, but do not fasten it.6 Place the cradle or device into the swivel mount (Installingthe Device in the Cradle, page 3).7 Pull out enough slack from the power and transducer cablesso the mount can fully swivel to the desired positions whenthe cables are connected.8 Remove the cradle and the swivel mount from the base.9 Apply marine sealant to the 16 mm (5/8 in.) center hole and tothe cable pass-through holes.10Securely fasten the base with the appropriate screws orbolts.11Place the swivel mount on the base, and fasten it using theincluded 10 mm M6×1 Phillips screw.2 echoMAP 40/50 Series Installation Instructions