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NOTE: Go to the installation instructions applicable to your GPS Receiver and accessories. Make the required
installations and then run the cables to your control head mounting location. Do not cut any cabling (except the
power cable). If your cables are too short, extensions are available from your local dealer or online from
www.humminbird.com.
3. After the mounting location has been determined, loosen the gimbal knobs and remove the
control head from the gimbal bracket.
NOTE: Alternate hole patterns are available on the gimbal mounting bracket, and may match existing holes on
the boat. You may choose to use one of these alternate hole patterns.
4. Place the gimbal bracket in the chosen position on the mounting surface and mark the four
mounting screw locations using a pencil or center punch.
5. Set the gimbal bracket aside and drill the four mounting screw holes using a 5/32" (4.0 mm) drill bit.
6a. If the cables must pass through a hole directly beneath the mounting bracket, mark and drill an
additional 1" (25 mm) hole centered between the four mounting holes. Route the cables through
the 1" hole. Place the gimbal over the mounting surface hole, then use it to mark the position of
the two mounting screws, closest to the center large hole. Remove the gimbal and drill the two
mounting holes using a 9/64" (3.5 mm) bit. Do not install the hole cover at this time.
or...
6b. If the cables cannot be routed directly beneath the mounting bracket, mark and drill a 1" (25 mm)
hole that will allow you to run the cables close to the bracket. Pass the cables through the 1" (25
mm) hole, routing the cables through the grommet and pressing the grommet into place. Place
the hole cover over the mounting surface hole, then use it to mark the position of the two
mounting screws. Remove the hole cover, drill the two mounting holes using a 9/64" (3.5 mm) bit,
fill them with marine-grade silicone sealant, then replace the hole cover and insert the #8 Phillips
countersink wood screws. Hand-tighten only.
Mounting Screws
1
Washer
2
Gimbal Mounting Bracket
3
3
2
1
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