Furuno 851 MARK-2 - Manual (Page 10)

1. MOUNTING
1-4
2. Lay the antenna unit on the mounting platform, orienting it as shown in Figure
1-5.
STERN
BOW
Figure 1-5 Antenna unit
CAUTION
Do not lift the antenna unit by the
radiator; lift it by the housing.
The radiator may be damaged.
3. Insert four hex bolts and seal washers from the top of the antenna housing.
Insert the seal washers with the larger diameter next to the bolt heads. Be
sure the seal washer, not other washers, is next to bolt head.
Hex bolt
Seal washer
Flat washer
Spring washer
Nut
Figure 1-6 Fixing the antenna unit chassis