Furuno FAR-1513 Installation Manual page 17

1.4.2 How to mount the antenna unit
The antenna unit may be assembled before hoisting it to the mounting platform. How-
ever, do not lift the antenna unit by the radiator. Always lift the unit by its housing.
When using a crane or hoist, use the hoist rings which you attach to the antenna hous-
ing. See the hoisting guidelines on page 1-5.
1. Construct a suitable mounting platform referring to the outline drawing at the end
of this manual.
2. Drill four mounting holes of 15 mm diameter and one cable entry hole of approx.
50 mm diameter in the mounting platform.
3. Lay the corrosion-proof rubber (supplied) on the mounting platform.
4. Place the antenna unit on the corrosion-proof rubber, and orient the unit so the
bow mark on its base faces the ship's bow.
5. Fasten the antenna unit with hex bolts (M12×60), flat washers, spring washers,
and seal washers. See the illustration on page 1-6 for details.
6. As shown in the figure below, use hex bolt (M6×25), hex nut (M6), flat washers
(M6) and spring washers (M6) to establish the ground system on the mounting
platform. The location of the grounding point should be within 340 mm of the
ground terminal on the antenna unit, since that is the length of the ground wire.
Connect the ground wire (RW-4747, supplied) between the grounding point and
the ground terminal on the antenna unit. Coat the entire ground system with the
adhesive (supplied).
Coat with
the adhesive.
Ground wire
Coat with
the adhesive.
7. Detach the hoist rings (if they have not already been detached).
Bow mark
Coat with the
adhesive.
Seal washer
Corrosion-proof
rubber
Flat washer
Spring washer
Nut
(Torque: 49 N•m)
Fixing bolt
Coat with the adhesive.
Hex bolt
Flat washer
Flat washer
Flat washer
Spring washer
Hex nut
Ground
terminal
Corrosion-proof
rubber
Fasten ground wire
then coat with the
adhesive.
Ground wire
Antenna chassis
Antenna base
Ground wire
OR
Welding
Grounding
1. INSTALLATION
Hex nut
Spring washer
Flat
washer
Hex
bolt
1-9