Mounting Instruction Plate; Marking Hru Expiry - mcmurdo 406 EPIRB User Manual

Offer the back plate into the chosen position and mark through the mounting holes. The
enclosure is supplied with a set of 25 mm (1") stainless steel fixings. If you are using the n
and bolts, drill 6 mm (1/4") holes where you have marked. You will need a 4 mm Allen key to
tighten the bolts. If the rear of the mounting surface is inaccessible, use the self-tapping
screws supplied (a 4 mm pilot hole is required). Always fit washers under heads of the sc
to avoid damaging the plastic.

8.3. Mounting instruction plate

The EPIRB is supplied with a rigid plate giving visual instructions on how to operate the
EPIRB in an emergency. Mount this next to your EPIRB as explained in section 7.3.

8.4. Marking HRU expiry

If you are installing a float-free EPIRB you must now mark the HRU expiry date. The HRU
has a 2 year in-service life which starts as soon as it gets exposure to a marine environment.
Hence the 2 years starts at installation and it is left to the customer to mark this date during
installation. A date 2 years into the future should be marked on marked on the HRU body an
copied onto the label on the side of the enclosure. The HRU is marked by cutting out the
corresponding dates on its label. The enclosure should be marked using the alpha-numeric
stickers provided, then covering them with the clear sticky label provided (but see 8.5 first)
The preferred date format is month and year, for example: JUN 2003.
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