38
Drill a 1-inch (25.4 mm) hole in the dash for the power, transducer and
antenna cables. The best location for this hole is immediately under the
gimbal bracket location. This way, the bracket can be installed so that
it covers the hole, holds the cables in position and results in a neat in-
stallation. Some customers, however, prefer to mount the bracket to the
side of the cable hole — it's a matter of personal preference.
Front view (left) and side view (right) showing dimensions of this so-
nar/GPS unit when mounted on gimbal bracket.
After drilling the hole, pass the transducer connector up through the
hole from under the dash, followed by the antenna connector. Pass the
power cable's bare-wire end down though the hole from the top.
If you wish, you can fill in the hole around the cables with a good ma-
rine sealant. (Some marine dealers stock cable hole covers to conceal
the opening.) No matter what type of installation you prefer, be sure to
leave enough slack in the cables to allow tilting or swiveling the unit. If
you choose to fill in the hole, be sure to position the cables against the
rear edge of the hole as you apply the fill material.
Before positioning the bracket, be sure to hold the cables against the
rear edge of the hole. Then, slide the bracket over the hole and butt the
rear of the bracket base firmly against the cables, thus pinning them in
place against the side of the hole. Finally, fasten the bracket to the
dash. Attach the unit to the gimbal bracket using the supplied gimbal
knobs and washers.
Millimeter
[Inch]
137.9
[5.43]
56.9
[2.24]
157.9
[6.22]
23.4
[0.92]
72.9
[2.87]
173.9
[6.85]