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GIMBAL MOUNTING THE CONTROL HEAD

If you are gimbal mounting the Humminbird® 900 Series™, you can pre-assemble the
unit in order to plan the best mounting location.

Parts and tools specific to gimbal mounting are:

• Gimbal mounting bracket and screws
• Gimbal mounting knobs and washers
• Phillips head screwdriver
• 5/16" (8mm) socket wrench or flat head screw driver
• Hand drill with various drill bits
• Marine-grade silicone sealant.

1. Place the control head into the gimbal bracket. Make sure that the straight side

of the gimbal arm is against the back side of the control head.

2. Place a 1" (25 mm) diameter black washer on the gimbal knob and then thread

the knob and washer into the housing. Tighten the gimbal knob to secure the
900 Series™ control head to the mount. Repeat step 2 for the other side.

You can now place the control head in various locations to decide which is best for
mounting. Rotating the mounting bracket to the top of the control head will allow for
overhead mounting. The chosen mounting area should allow for sufficient room so the
control head can pivot through the full tilt range and allow for easy removal and installation.

NOTE:

You can drill the cable pass hole underneath the gimbal bracket, allowing you to

thread the cables through the knock-out holes in the mount; however, if you cannot drill the
hole directly under the mounting bracket, then you will need to drill the cable pass hole
behind the bracket, and will need to mount the hole cover there instead.

NOTE

: When drilling holes in fiberglass hulls, it is best to start with a smaller bit and use

progressively larger drill bits to reduce the chance of chipping or flaking the outer coating.
Fill all holes with marine grade silicone sealant.

NOTE:

You must have underside access to the mounting location to pass the cables through to

the surface. Also, make sure that the mounting surface is adequately supported to protect the
control head from excessive wave shock and vibration and provide visibility while in operation.

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 underneath the gimbal mounting bracket, and

may match existing holes on the boat. If you choose to use one of these alternate hole
patterns, simply drill it out and use it to mount the bracket instead.

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.

NOTE:

Go to the installation instructions applicable to your transducer, 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.

Washer

Gimbal Knob

Gimbal Bracket

Expansion ports - use for future accessories

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