Furuno 851 MARK-2 - Manual (Page 9)

1. MOUNTING
1-3
3. Coat threaded holes on the antenna radiator with silicone sealant.
4. Grease the O-ring and set it to the radiator bracket.
5. Lay the antenna radiator on the radiator bracket.
6. Coat the radiator fixing bolts (4 pcs.) with silicone sealant. Fasten the
antenna radiator to the radiator bracket with the radiator fixing bolts, flat
washers and spring washers.
Flat washer
Spring washer
Hex head bolt
(M8 x 30)
Radiator bracket
Coat bolts with
silicone sealant.
Antenna
radiator
O-ring
Coat threaded
holes with silicone
sealant.
Figure 1-3 Fastening the radiator bracket to the antenna unit chassis
1.4 Mounting the Antenna Unit
The antenna unit can be mounted using the fixing holes on the outside (200 x
200 mm) or inside (140 x 150 mm) the antenna unit.
Outside fixing holes
Use the hex head bolt (supplied) to mount the antenna unit as below.
1. Lay the corrosion-proof rubber mat (supplied) on the mounting platform.
Ground
terminal
Rubber
mat
Bow mark
Figure 1-4 Location of rubber mat