Drilling The Mounting Holes - Humminbird NS25 Operation Manual

Drilling the Mounting Holes

After you have determined the best mounting location for your control head, proceed with the
following instructions:
1. Depress the latch on the rear of the unit and separate the unit from the mounting bracket.
2. Set the mounting bracket on the mounting surface.
3. Mark the four mounting screw locations with a pencil or punch.
4. Set the mounting bracket aside and drill the four holes using a 9/64" bit.
5. Mark and drill a 1" hold centered between the four mounting screw holes.