Quick Start Manual


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
Install the GPSMAP 620/640 marine mount on your boat according to the following instructions. You need the appropriate tools and fasteners
listed. These items are available at most marine dealers. Wear safety goggles, ear protection, and a dust mask when drilling. When drilling,
always check the opposite side of the surface.
In
the USA, go to www.garmin.com/support, or contact Garmin USA by phone at [phone] or [phone]. In the UK, contact Garmin
(Europe) Ltd. by phone at 0808 2380000. In Europe, go to www.garmin.com/support and click  for in-country support
information, or contact Garmin (Europe) Ltd. by phone at +44 (0) 870.8501241.
Before installing your GPSMAP 620/640 marine mount, conrm that the package contains the items listed on the box. If any parts are missing,
contact your Garmin dealer immediately.
See the Important Safety and Product Information guide in the product box for product warnings and other important information.

1. Selectingalocation.
2. Installingthemarine-mountbaseandconnectingthemarine-mountbrackettothemarine-mountbase.
3. Connectingthemarine-mountbrackettopower.

• ConnectingtheGPSMAP620/640marine-mountbrackettootherNMEA0183-compatibledevices,suchasaVHFradiowithDigital
SelectiveCalling(DSC).
• Connectingthemarine-mountbrackettoanexternalaudiodevice.

Consider the following when you select an installation location:
• The location should provide optimal viewing as you operate your vessel and allow easy access to the touchscreen.
• The surface must be strong enough to support the weight of the GPSMAP 620/640 and protect it from excessive vibration or shock.
• The location must be at least 17 in. (43 cm) away from a magnetic compass to prevent electromagnetic interference, which can cause
inaccurate compass readings.
• The location should not be exposed to extreme temperature conditions. The GPSMAP 620/640 is designed for operation from 5°F to 131°F
(from -15°C to 55°C).

Install the marine mount on a console or overhead. Install the marine mount with the following tools and hardware (not included):
• Three number 8 (4 mm) pan-head machine bolts with matching nuts and washers, or three number 8
pan-head self-tapping screws. Do not use bolts or screws with a countersunk head.
• Phillips screwdriver
• Drill and drill bit

1. Disconnecttheswivelxture➊fromthebottomofthemountbase➋bylooseningtheshortknob➌.
2. Usingtheswivelxtureasatemplate,markthelocationofthethreeholesusedtosecurethe
swivelxturetothemountingsurface.
3. Drillholesinthemarkedlocations.
• Ifyouareusingnumber8(4mm)pan-headmachinebolts,drillthree
3
/
16
in.(5mm)holes.
• Ifyouareusingnumber8(4mm)pan-headself-tappingscrews,drillthree
1
/
8
in.(3.2mm)pilot
holesnodeeperthanhalfofthescrewlength.
4. Securetheswivelxturewithyourmountinghardware.Donotovertighten.
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August2012 190-01006-02Rev.B PrintedinTaiwan