Furuno 851 MARK-2 - Manual (Page 8)

1. MOUNTING
1-2
As shown in the figure below, the antenna unit may be installed on the bridge, on
a common mast or on the radar mast.
(a) On bridge (b) Common mast
(c) Radar mast
Figure 1-1 Antenna unit mounting methods
1.2 Fixing Holes in Mounting Platform
Referring to the outline drawing on page D-1, drill five holes in the mounting
platform: four holes of 15 mm diameter for fixing the antenna unit and one hole
of 25-30 mm diameter for the signal cable.
1.3 Fastening the Radiator to the Radiator Bracket
There are installation materials for the Radiator not shown in the packing list.
These are as shown below.
Name Qty Remarks
O-ring 1 NBR
Hex. head bolt 4 M8 x 30
Flat washer 4 M8
Spring washer 4 M8
Silicone sealant 1 #1211, 50g
1. Remove the radiator cap from the radiator bracket.
2. Coat contacting surface between antenna radiator and radiator bracket with
silicone sealant as shown in Figure 1-2.
Coat hatched area with
silicone sealant.
Groove
Radiator
Figure 1-2 Coating the bottom of antenna radiator for
XN10A with silicone sealant