Furuno FR-1908V-BB Installation Manual page 8

1. MOUNTING
1.1.2 How to assemble the antenna unit
The antenna unit consists of the antenna radiator and the antenna unit chassis, and
they are packed separately. Fasten the antenna radiator to the antenna unit chassis
as below:
1. Attach two guide pins to the underside of the antenna radiator.
2. Remove a waveguide cap from the radiator bracket. The cap may be discarded.
3. Coat the waveguide flange with anticorrosive adheasive as shown below.
Hole for a
guide pin
4. Coat fixing holes for the antenna radiator with anticorrosive adheasive.
5. Grease the O-ring and set it to the O-ring groove of the radiator flange.
6. Set the antenna radiator to the radiator bracket.
7. Coat hex bolts M8x40 with anticorrosive adheasive and use them to loosely fasten
the antenna radiator to the antenna unit chassis.
8. Remove two guide pins (inserted at step 1), and then tighten fixing bolts.
Antenna radiator
1-2
10 mm
5 mm
Anticorrosive adheasive
CAUTION
Be sure to remove the guide pins.
Injury may result if the guide pins loosen
and fall.
Guide pin
O-ring
Waveguide cap
Waveguide
Radiator bracket
Hex bolt
(M8x40, 8 pcs.)
O-ring
Hole for a
guide pin