Furuno FAR-2157, Installation Manual

Page: 13 / 111

1-5
Fastening antenna unit to the mounting platform
Note: The antenna unit is made of cast aluminum, which is subject to electrolytic corrosion if the
mounting platform is steel or iron. To prevent electrolytic corrosion, use the supplied seal washers
and corrosion-proof rubber mat.
Fix the antenna unit to the mounting location, referring to the procedure below and the illustration
on the next page.
1. Referring to the antenna unit outline drawing, prepare a mounting platform at the mounting
location for the antenna unit.
2. Lay the corrosion-proof rubber mat (supplied) on the mounting platform, aligning the holes on
the rubber mat with the fixing holes on the mounting platform.
3. Lay the antenna unit on the rubber mat, orienting it so the cable gland is directed toward ship's
bow.
4. Use hex bolts (M12×60), nuts, flat washers and seal washers to fix the antenna unit to the
mounting platform.
5. Arrange the ground point at a location on the mounting platform that is within 300 mm from the
ground terminal on the antenna unit. Fasten the ground wire (RW-4747, 340 mm) there, using
the M6×25 hex bolt, nut and washers.
6. Connect the other end of the ground wire to the ground terminal on the antenna unit.
7. Coat the ground terminal, ground point on the mounting platform and fixing bolts on the
antenna unit with anticorrosive sealant (supplied).
WARNING
Do not open the equipment unless
totally familiar with electrical circuits
and service manual.
Only qualified personnel should
work inside the equipment.
Wear a hard hat and safety belt when
mounting the antenna unit.
Serious injury or death can result if
someone falls from the radar antenna mast.
Construct a suitable service platform
from which to install the antenna unit.
Serious injury or death can result if
someone falls from the radar antenna
mast.