Lowrance GlobalMap 540c BAJA Operation Instructions Manual page 29

Front
Install the gimbal bracket. Orient the bracket so the arms slope to-
Drill a 1-inch (25.4 mm) hole in the dash for the power cable. 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 installation. Some custom-
ers, however, prefer to mount the bracket to the side of the cable hole
— it's a matter of personal preference.
137.9
[5.43]
Front view (left) and side view (right) showing dimensions of the
GlobalMap 540c when mounted on gimbal bracket.
After drilling the hole, 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 marine
sealant compound. (Some marine dealer's stock cable hole covers to con-
ceal the opening.) No matter what type of installation you prefer, be sure
ward the front of your unit.
173.9
[6.85]
Millimeter
[Inch]
23.4
[0.92]
157.9
[6.22]
56.9
[2.24]
21
72.9
[2.87]