Furuno 1834C-BB User Manual

 

1.  Remove the mounting hardware from the bottom of the antenna unit: four each of hex 

bolts (M10X20), spring washers and flat washers. Save the mounting hardware to use it 
to fix the antenna unit to the mounting platform later on.   

Flat washer

Spring washer
Hex bolt (M10 x 20)

Screws

two screws on other side

Bow

Stern

2.  Construct a platform (wood, steel*, or aluminum) of 5-10 mm (recommended dimension) 

in thickness referring to the outline drawing at back of this manual. Fasten the platform 
to the mounting location. Next, position the mounting base on the platform so the cable 
entrance faces the stern direction. 

*: For steel platform take appropriate measures to prevent corrosion. 

Note: When drilling holes in the platform, be sure they are parallel with the fore and aft 
line. 

3.  Using the hex bolts, flat washers and spring washers removed at step 1, fasten the 

mounting base to the platform. The torque should be between 19.6-24.5 N

•m. 

 
 Note: Longer hex bolts (M10X25) are supplied with the installation materials. Use them 

instead of the hex bolts removed earlier if the mounting platform thickness is 
5–10 mm.   

Flat

washer

Antenna base
assy.

Spring

washer

Platform

Hex bolt

Apply silicone sealant.

(M10 x 25
or M10 x 20)

5 mm or under : M10x20
5-10 mm: 

M10x25

over 10 mm: 

locally supplied bolts

Effective
thread
length:
12 mm