Furuno 10n Manuel D’Utilisation

 

 

 

1.  With the boat hauled out of the water, mark the location selected for mounting the 

transducer on the bottom of the hull. 

2.   If the hull is not level within 15

° 

in any direction, fairing blocks made out of teak should 

be used between the transducer and hull, both inside and outside, to keep the 
transducer face parallel with the water line. Fabricate the fairing block as shown below 
and make the entire surface as smooth as possible to provide an undisturbed flow of 
water around the transducer. 

 

The fairing block should be smaller than the transducer itself to provide a channel to 
divert turbulent water around the sides of the transducer rather than over its face. 

 

BOW

Hole for 
stuffing tube

Upper
half

Lower
half

Saw along slope of hull.

 

3.  Drill a hole just large enough to pass the threaded stuffing tube of the transducer 

through the hull, making sure it is drilled vertically. 

4.  Apply a sufficient amount of high quality caulking compound to the top surface of the 

transducer, around the threads of the stuffing tube and inside the mounting hole (and 
fairing blocks if used) to ensure watertight mounting. 

5.  Mount the transducer and fairing blocks and tighten the locking nuts. Be sure that the 

transducer is properly oriented and its working face is parallel to the water line. 

 
Note: Do not over-stress the stuffing tube and locking nuts through excessive tightening, 

since the wood block will swell when the boat is placed in the water. It is suggested 
that the nut be tightened lightly at installation and retightened several days after the 
boat has been launched.