User's Manual

11
Squeeze top until
it springs up
1
2
Lift up to
free base
3
4
Pull
forward
Pull
down
6 OPERATING PROCEDURE
An EPIRB is a piece of life saving equipment. Its sole purpose is to call for help.
It must only be used in situations of grave and imminent danger.
Misuse can involve a severe penalty.
6.1 Sinking
If you have a category 1 “float-free” enclosure (see marking on enclosure label), then if
your vessel sinks, the Precision 406 will automatically release itself from its enclosure
before it reaches a depth of 4 metres. The Precision 406 will float to the surface and
start to operate because its sea switch is activated.
If possible, the Precision 406 should be
recovered and tied (using its lanyard) to
one of the liferafts. An EPIRB is meant to
mark survivors, not the accident scene.
For best operation leave the Precision 406
floating in the sea near the liferaft.
6.2 Abandon ship
If the vessel is sinking and there is time to fetch the EPIRB then this should always be
done. Release the Precision 406 from its mounting bracket as described in section 6.3
or 6.4 and carry it to one of the liferafts. Once the liferaft is in the water, uncoil the
lanyard and tie it to the liferaft, then throw the Precision 406 overboard so that it floats
next to the liferaft. The Precision 406 will operate because its sea switch will activate.
6.3 Releasing Precision 406 from a wall bracket
If you have an Precision 406 fitted into a wall bracket then follow the instructions below
to release it from the bracket: