Furuno DS-80 Installation Manual page 11

1.4.2 Mounting of transducer
Confirm that a metal cover is attached to the transducer. For seachest except DS-850, remove
the hose clamp from the top of transducer.
Mounting of Flush Type Seachest DS-850
1. Fit the transducer (1) and spacer (7) to the bottom plate (3).
2. With the "FORE" mark on the fixing plate (8) facing upward, pass the transducer cable
through the slot in the fixing plate (8).
3. Face the fixing plate (8) and bottom plate (3) in the ship's bow direction, and then screw
three bolts (4) in the tapped holes of the bottom plate.
4. Fasten the fixing plate (8) with three flat washers (9), spring washers (10) and nuts (11) until
the fixing plate (8) contacts the spacer (7).
5. Set the tightening nut (12), washer (13) and gasket (14) to the transducer cable in that
order from the cable end.
6. Pass the transducer cable end through the though-hull pipe from below the hull.
7. Fasten the tightening nut (12) with the tightening handle (supplied) so that the length of the
cable between the tightening nut and the top of the transducer is 300 mm.
8. Mate the bottom plate (3) and barrel (2), and fasten them with six spring washers (6) and
hex. Bolts (5).
Note: The tank barrel needs not be filled with oil or any filler. Sea water will get into when the
ship is placed in the water.
Do not seal the bottom plate to stop ingress of water into the tank.
14 14
13 13
12 12
25
A A
8 8
7 7
6 6 5 5
FORWARD DIRECTION
42
2 2
11 11
A A
10 10
9 9
4 4
SOLDERING DIMMENSIONS
191+1
DECIDED BY SHIPYARD.
3 3
1 1
1. TRANSDUCER
2. CASING
3. FIXING FLANGE
4. FIXING BOLT
5. HEX. BOLT
6. SPRING WASHER
7. SPACER
8. FIXING PLATE
9. FLAT WASHER
HULL PLATE
10. SPRING WASHER
11. HEX. NUT
12. TIGHTENING NUT
13. WASHER
14. GASKET
A-A view A-A view
5
1 pc
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3 pcs
6 pcs
6 pcs
1 pc
1 pc
3 pcs
3 pcs
6 pcs
1 pc
1 pc
1 pc