Garmin GFS 10 Instructions D'installation page 4

Step 1: Installing the GFS 10 in the Fuel Hose
Ensure that the fuel hose is drained, and use a hose cutter or a knife to cut the fuel hose where you want to install the GFS 10� Use the included hose clamps to
secure the fuel hose to the GFS 10� Do not overtighten the clamps� Inspect your fuel system and connections regularly�
Notes:
• Install the GFS 10 as far from the engine as practical� Do not install the GFS 10 directly on the engine or where it could be subjected to excessive heat or vibration�
Do not install the GFS 10 between the engine and the priming bulb (if
applicable)�
• When placing the GFS 10 in the fuel hose, be sure the direction of flow,
as indicated by the arrow, points toward the engine�
• Install the GFS 10 so the fuel flows in an upward direction through the
GFS 10� This will prevent errors caused by air bubbles�
• Install the GFS 10 in a location above the maximum fuel level of the fuel
tank�
• Install the included fuel filter in the fuel hose between the fuel tank and
the GFS 10� A sticker on the filter indicates the direction of fuel flow� Always have a spare metal
• If additional fuel hose is needed when installing the GFS 10 and fuel filter, use
• Have two / in� (9�5 mm) in-line, fuel-line splice barbs available� This allows you to remove the GFS 10 and the fuel filter, in case of an emergency, and maintain normal
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engine operation�
• Be sure to clean up any spilled fuel�
Step 2: Mounting the GFS 10 and Fuel Filter
The GFS 10, the in-line fuel filter, and the fuel hoses must be mounted to your boat� A bracket for the GFS 10, cable ties with eyelets for the
in-line fuel filter and hoses, and mounting screws are provided�
When mounting the GFS 10 to a solid structure on your boat, use the included bracket to secure the GFS 10 device, and use two included
cable ties to secure the hose on either side of the GFS 10� When mounting the in-line fuel filter to a solid structure on your boat, use two
cable ties around the fuel filter and two cable ties around the hose on either side of the fuel filter� If you are unable to use the included
bracket to secure the GFS 10 to a solid surface, use an included cable tie to secure the GFS 10 device to a bundle of cables or other
hoses�
Use the included screws to mount the GFS 10 and the in-line fuel filter� Drill a
If you are mounting the GFS 10 on fiberglass, use a countersink bit to drill a clearance counterbore through the top gelcoat layer (but no
deeper)� This will help to avoid cracking in the gelcoat layer when the screws are tightened�
Step 3: Connecting the GFS 10 to the Power Source and the Fuel Gauge
The GFS 10 must be connected to the power source of the boat� Optionally, the GFS 10 can be connected to the fuel gauge on your boat to
read fuel-level data� The bare-wire cable contains the power and ground wires, as well as the wires you connect to your fuel gauge� Follow
the wiring diagram to complete the connections�
Fuel gauge connection optional
IMPORTANT:
• If you use a fuse block on your boat, cut the fuse holder from the power wire� Use a �25 A fuse in the fuse block�
• Install the fuse holder as close to the battery as possible� If an extended run of wire is needed, add 24 AWG wire between the fuse holder and the GFS 10, not between
the fuse holder and the battery�
• DO NOT install the fuse holder near the gas tank�
• If you do not connect the GFS 10 to a fuel gauge or level-sensor on a fuel tank, connect the brown wire to ground, and leave the grey wire unconnected�
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-
+
12 Vdc
Battery
Ground
Ignition
Fuel Tank
Level Sensor
Unconnected
(when using NMEA 2000)
Engine
To power and data
connections
/ in� (9�5 mm) in-line fuel filter available�
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/ in� (9�5 mm) US Coast Guard type A1 fuel hose�
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8
/ in� (3�2 mm) pilot hole for each screw�
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8
To NMEA 2000 Network
or CANet Bus
Wire
Color
Fuse
red/White
.25 A
Black/White
Grey
Brown
Orange
GFS 10
Fuel filter
Fuel tank
GFS 10 Fuel Sensor Installation Instructions
Bracket
Cable
tie (×6)