Furuno FR-2125V Installation Manual page 11

4. Place the antenna unit on the rubber mat orienting the unit so the bow mark on
its base is facing the ship's bow.
5. Fasten the antenna unit to the mounting platform with M12X60 hex bolts, nuts,
flat washers and seal washers.
6. Using hex bolt (M6X25), nut (M6) and flat washer (M6), establish the ground
system on the mounting platform as shown in Figure 1-5. Connect the ground
wire (RW-4747, 340 mm, supplied) between the grounding point and ground
terminal on the antenna unit. Coat the entire ground system with silicone seal-
ant (supplied).
Anticorrosive sealant
Seal washer
Rubber mat
Anticorrosive
sealant
Figure 1-5 How to mount the antenna unit
Bow mark
Figure 1-4 Antenna unit, front view
CAUTION
Ground the equipment to
prevent electrical shock
and mutual interference.
1-4
Ground
terminal
Rubber
mat
Ground wire
Anticorrosive
OR
sealant
Ground wire
Hex bolt welded to
ship's superstructure
Anticorrosive sealant
Ground
terminal
Ground
wire
Antenna base
Hex bolt
Spring washer
Spring washer
Hex nut
Hex nut
Spring washer
Flat washer