Furuno 1623 ユーザーズマニュアル

3. INSTALLATION 

3.  Using the hexagon head bolts, flat 

washers and spring washers removed at 
step 1, fasten the antenna unit to the 
platform. The torque should be 19.6-24.5 
N

•

m. (If the thickness of the mounting 

platform is greater than 10 mm, use 
longer hex bolts (M10 x 25), considering 
effective thread length from bottom of 
antenna unit.) 

Flat

washer

Antenna
base

Spring

washer

Platform

Hexagon head bolt
(M10 x 20)

5-10
mm

Effective
thread
length
16 mm

4.  Unfasten three screws to open the cover. 

Release the cable of the rotation detector 
from the cable clamp. 

Cable
clamp

Rotation
detector

Cable
entrance

5.  Referring to the illustration at the top of 

the next column for location, unfasten 11 
screws to dismount the shield plate. 
Discard the screw circled in the 
illustration. 

Shield plate

Discard this
screw.

6.  Pass the antenna cable with connector 

through the gasket and cable clamp, and 
then tighten cable gland. Two gaskets are 
supplied: one gray, one black. Use the 
proper gasket according to antenna cable 
used, referring to the illustration below. 

67

φ

12

49

φ

11

Use black gasket.

Use gray gasket.

Gasket (See below for
type to use.)

Rubber
Gasket

Cable Gland