Installation Instructions

Ground screw
NETWORK Garmin Marine Network
NMEA 2000 NMEA 2000 network
J1939 Engine or J1939 network
2 microSD memory card slots, 32 GB max.
Contacting Garmin Support
• Go to support.garmin.com for help and information, such as
product manuals, frequently asked questions, videos, and
customer support.
• In the USA, call 913-397-8200 or 1-800-800-1020.
• In the UK, call 0808 238 0000.
• In Europe, call [phone].
Software Update
You may need to update the chartplotter software after
installation. For the instructions on how to update the software,
see the owner's manual at garmin.com/manuals/GPSMAP7x3
-9x3-12x3.
Mounting Considerations
NOTICE
This device should be mounted in a location that is not exposed
to extreme temperatures or conditions. The temperature range
for this device is listed in the product specifications. Extended
exposure to temperatures exceeding the specified temperature
range, in storage or operating conditions, may cause device
failure. Extreme-temperature-induced damage and related
consequences are not covered by the warranty.
When selecting a mounting location, you should observe these
considerations.
• The location should provide optimal viewing as you operate
your boat.
• The location should allow for easy access to all device
interfaces, such as the keypad, touchscreen, and card
reader, if applicable.
• The location must be strong enough to support the weight of
the device and protect it from excessive vibration or shock.
• To avoid interference with a magnetic compass, the device
should not be installed closer to a compass than the
compass-safe distance value listed in the product
specifications.
• The location must allow room for the routing and connection
of all cables.
• The location must not be a flat, horizontal surface. The
location should be in a vertical angle.
The location and viewing angle should be tested before you
install the device. High viewing angles from above and below
the display may result in a poor image.
Bail Mounting the Device
NOTICE
If you are mounting the bracket on fiberglass with screws, it is
recommended to use a countersink bit to drill a clearance
counterbore through only the top gel-coat layer. This will help to
avoid cracking in the gel-coat layer when the screws are
tightened.
You can use the bracket to bail mount the device on a flat
surface.
1
Using the bail-mount bracket as a template, mark the pilot
holes .
2
Using a 3 mm (
1
/
8
in.) drill bit, drill the pilot holes.
3
Secure the bail-mount bracket to the surface using the
included washers and wood screws .
4
Install the bail-mount knobs on the sides of the device.
5
Place the device in the bail-mount bracket, and tighten the
bail-mount knobs.
6
Install the trim caps by snapping them in place around the
edges of the device.
Flush Mounting the Device
NOTICE
Be careful when cutting the hole to flush mount the device.
There is only a small amount of clearance between the case and
the mounting holes, and cutting the hole too large could
compromise the stability of the device after it is mounted.
Use only the included hardware when mounting this device.
Using mounting hardware not provided with the device may
damage the device.
To avoid potential damage to the powder coating, use only the
included screws to mount the device. Using screws other than
the ones included will void your warranty.
Do not use the device as a template when drilling the mounting
holes because this may damage the glass display and void the
warranty. You must only use the included template to correctly
drill the mounting holes.
If you will not have access to the back of the device and the
microSD memory card slots after installations, you should install
the microSD memory card prior to installation.
The included template and hardware can be used to flush mount
the device in your dashboard. There are three options for
hardware based on the mounting surface material.
• You can drill pilot holes and use the included wood screws.
• You can drill holes and use the included nut plates and
machine screws. The nut plates can add stability to a thinner
surface.
• You can punch and tap holes, and use the included machine
screws.
1
Trim the template, and make sure it fits in the location where
you want to mount the device.
2
Secure the template to the mounting location.
3
Using a drill bit according to the list below, drill one or more of
the holes inside the corners of the solid line on the template
to prepare the mounting surface for cutting.
Device Drill bit size
GPSMAP 7x3 6.5 mm (
1
/
4
in.)
GPSMAP 9x3 7.4 mm (
5
/
16
in.)
GPSMAP 12x3 13.5 mm (
9
/
16
in.)
2