Garmin GCV 10 Installation Instruction

To obtain the best performance and to avoid damage to your 

boat, install the Garmin

®

 GCV 10 device according to these 

instructions.
Read all installation instructions before proceeding with the 

installation. If you experience difficulty during the installation, 

contact Garmin Product Support.

Help us better support you by completing our online registration 

today.
• Go to 

.

• Keep the original sales receipt, or a photocopy, in a safe 

place.

• Go to 

 and click Contact Support 

for in-country support information.

• In the USA, call (913) 397.8200 or (800) 800.1020.
• In the UK, call 0808 2380000.
• In Europe, call +44 (0) 870.8501241.

See the Important Safety and Product Information guide in the 

product box for product warnings and other important 

information.
You are responsible for the safe and prudent operation of your 

vessel. Sonar is a tool that will enhance your awareness of the 

water beneath your boat. It does not relieve you of the 

responsibility of observing the water around your boat as you 

navigate.

Failure to install and maintain this equipment in accordance with 

these instructions could result in damage or injury.
Always wear safety goggles, ear protection, and a dust mask 

when drilling, cutting, or sanding.

When drilling or cutting, always check what is on the opposite 

side of the surface.

This device must be installed according to these instructions to 

get the best possible performance. If you experience difficulty 

with the installation, contact Garmin Product Support.

Because every boat is different, you must carefully plan the 

GCV 10 sounder installation.

Select a mounting location.

Mount the sounder.

Connect the sounder to the Garmin Marine Network and to 

power.

Connect the sounder to the transducer.

• Drill and drill bits

• #2 Phillips screwdriver
• Cable ties (optional)
• Marine sealant (optional)

• The sounder must be mounted in a location where it cannot 

be submerged.

• The sounder must be mounted in a location with adequate 

ventilation where it will not be exposed to extreme 

temperatures.

• The sounder should be mounted so that the LEDs are 

visible.

• The sounder should be mounted so that the power and 

network cables can be easily connected.

• The sounder should be mounted so that the transducer cable 

can be connected. If required, transducer extension cables 

are available through your Garmin dealer.

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 any cracking in the gel-coat layer when the screws are 

tightened.
Stainless-steel screws may bind when screwed into fiberglass 

and overtightened. Garmin recommends applying an anti-seize 

lubricant to the screws before installing them.

Before you mount the device, you must select a mounting 

location and determine the mounting hardware needed for the 

surface.
NOTE: Mounting hardware is included with the device, but it 

may not be suitable for the mounting surface.

Place the device in the mounting location and mark the 

location of the pilot holes.

Drill the appropriate pilot hole for one corner of the device.

Loosely fasten the device to the mounting surface with one 

corner and examine the other three pilot-hole marks.

Mark new pilot-hole locations if necessary, and remove the 

device from the mounting surface.

Drill the appropriate pilot holes for the other three marks.

Secure the device to the mounting location.

When connecting the power cable, do not remove the in-line 

fuse holder. To prevent the possibility of injury or product 

damage caused by fire or overheating, the appropriate fuse 

must be in place as indicated in the product specifications. In 

addition, connecting the power cable without the appropriate 

fuse in place will void the product warranty.

Do not force a cable into its port. Forcing the cable can damage 

the pins. If the cable is properly aligned, the cable should 

connect easily.

Before you connect the sounder to the network, power, and the 

transducer, you must mount the sounder.

Route the cables using the appropriate tie wraps, fasteners, 

and sealant to secure the cables along the route and through 

any bulkheads or the deck (

).

November 2013

190-01663-02_0A

Printed in Taiwan