Furuno DRS4A Installation Manual page 7

5. Coat the hex bolts (4 pcs.) with silicone sealant. Fasten the antenna radiator to the radiator
bracket with the hex bolts, flat washers and spring washers.
1.2.2 Mounting the radar sensor
The radar sensor can be mounted using the fixing holes on the outside (200 x 200 mm) or inside
(140 x 150 mm) the radar sensor.
Using outside fixing holes of radar sensor
Use the hex bolts (supplied) to mount the radar sensor as below.
1. Lay the corrosion-proof rubber mat (supplied) on the mounting platform.
2. Lay the radar sensor on the mounting platform, orienting it as shown below.
Antenna
radiator
O-ring
Radiator bracket
Flat washer
Spring washer
Hex bolt
(M8 x 30)
Bow mark
STERN
Coat threaded
holes with silicone
sealant.
Coat bolts with
silicone sealant.
Ground
terminal
Rubber
mat
BOW
3