Maintenance Of The Float-Free Dru; Notice For The Maintenance And Self Test - Furuno VR-7000 Operator's Manual

2. MAINTENANCE
2.2

Maintenance of the Float-free DRU

The capsule of the Float-free DRU transmits the signal similar to the distress signal of
a satellite EPIRB. Therefore, trouble to the search and rescue authorities may occur
if the capsule accidentally transmits the signal. If accidental transmission occurs, stop
the transmission and inform the search and rescue authorities of the accidental trans-
mission.
Contact information
A (cellular) telephone is usable in Jap-
anese coastal waters.
You can contact with the coast guard
using the marine VHF band (within 25
miles from the coast).
You can contact with the coast guard
using the radio telephone of MF 2182
kHz (within 150 miles from the coast).
A satellite radio telephone like a Inmar-
sat is usable.
Things to inform
Ship's name, call sign, MMSI, time, location, fact of the accidental transmission and own
contact information.
2.2.1

Notice for the maintenance and self test

Do the maintenance and self test every month, keeping in mind the following points:
• Attach the cover to the bracket correctly after the maintenance, referring to "How to
attach the cover" on page 5. If the cover is not attached correctly, the cover and cap-
sule may drop out of the bracket due to wind and/or vibration.
• There are two electrodes at the back of the cap-
sule (see right figure). If these electrodes are
shorted by water with the capsule released from
the bracket, the capsule may transmit the signal
accidentally. Therefore, do not wash the cap-
sule with water or release the capsule in rain
and rough seas. When the capsule is seated in
the bracket correctly, the electrodes are invalid.
So, the capsule does not transmit the signal if
the capsule get splashed with water.
• You can do the self test with the capsule seated
in the bracket. However, the capsule can not transmit the test signal and test result
may be "NG" when the bracket is fastened to a steel plate. In this case, release the
capsule from the bracket and do the self test again.
Note: Silicone grease is applied to the bottom of the capsule (see the next page).
When you release the capsule during the self test, hold the capsule by its handle to
prevent foreign material from contacting the grease. If foreign material contacts the
grease, wipe off the grease, then reapply the specified silicone grease
(type:100946, code no.: 001-365-040).
2-2
118 or 03-3591-9000 (Japan Coast Guard)
Use the radio telephone of VHF channel 16 to
contact the coast guard.
Use the radio telephone of MF 2182 kHz to con-
tact the coast guard.
• Contact with the search and rescue authori-
ties in each flag state.
• For Japanese-flagged vessel, contact Japan
Coast Guard at 81-3-35919000.
Electrode