Furuno NAVnet 3D MFDBB Installation Manual page 13

Bulkhead mounting
Mark four fixing hole positions on the bulkhead. Screw in two 6x30 self-tapping screws at upper
fixing positions, leaving 5 mm protruding. Set the processor unit to the screws and screw in two
self-tapping screws at lower positions. Tighten all screws.
4 pcs.
Processor unit, bulkhead mounting
8