Furuno CH-500 Installation Manual page 36

1. MOUNTING
2) Insert two screw drivers with a blade width of 7 to 10 mm in the slits on the
3) Attach the two supplied attachment plates to the transducer at the locations
4) Insert the screwdrivers between the plates and slits of the soundome and
Note 2: Do not place the oil-filled soundome on its side for more than five minutes.
Oil may leak.
Note 3: When the soundome is painted to keep marine life off the transducer, ob-
serve the following precautions.
• Use only anti-foulant "SEATENDER
20"(Manufacture: Chugoku Marine Paint
Co. Ltd., Japan).
• Paint the area below sticker on the soun-
dome. Painting the metal parts causes cor-
rosion.
5. Calculate the required length of the soundome shaft from the retraction tank
length (Lt) and cut off the spare portion.
Note: When the retraction tank length is 1 meter, the soundome shaft whose
length is 1.17 meter can be used without cutting off any portion. Also, when the
retraction tank length is 1.8 meter, the soundome shaft whose length is 1.97 meter
can be used without cutting off any portion. If the 1.17/1.97 m soundome shaft is
shortened, attach the optional waterproof attachment kit (OP06-27) to the top of
the soundome shaft, see section 1.6.5.
1-26
soundome, then rotate them in the opposite directions of each other.
The transducer should pushed up by the width of the blade.
directly above the slits of the soundome.
rotate them.
The transducer is pushed up further and will become loose enough to be re-
moved by hand.
Supplied length: 1.17 m, 1.97 m, 2.2 m, 3.0 m, 3.8 m
For 400 mm stroke: Shaft length = Lt + 190 mm
For 250 mm stroke: Shaft length = Lt + 40 mm
(Lt: retraction tank length)
Be careful not to damage
the soundome shaft.
Chamfer edge to protect
O-ring from damage.
Attachment
plate
Sticker
Paint only
this area.