Mounting the GPSMAP 8700 Black Box Device
If you are mounting the device in fiberglass, when drilling the pilot holes, use a countersink bit to drill a clearance counterbore through only the top gel-coat layer. This will help to avoid cracking in the gel-coat layer when the screws are tightened.
NOTE:
Screws are included with the device, but they may not be suitable for the mounting surface.
Before you mount the device, you must select a mounting location, and determine what screws and other mounting hardware are needed for the surface.
- Place the black box device in the mounting location, and mark the location of the pilot holes.
- Drill a pilot hole for one corner of the device.
- Loosely fasten the device to the mounting surface with one corner, and examine the other three pilot-hole marks.
- Mark new pilot-hole locations if necessary, and remove the device from the mounting surface.
- Drill the remaining pilot holes.
- Secure the device to the mounting location.