Sonic KCS-5885Z, Operation Manual

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vii
Safety of the hoist unit
• Ship speed resistance
When using the hoisting device, be sure not to exceed the following ship speed resistance
of the hoisting device. When used in excess of the ship speed resistance, the hoisting
device may be damaged and cause an accident.
Hoisting
operation Ascent 15 knots or less ship speed
resistance
16 knots
Descent 15 knots or less
• Change electrolytic corrosion-preventing zinc plates annually.
Be sure to perform electrolytic corrosion prevention. If electrolytic corrosion prevention is
not performed, the transducer may fall accidentally or there may be an influx of seawater
into a dome, in the worst case.
For the transducer
The transducer of this sonar system is filled with castor oil inside. This castor oil may steep
from the transducer cable due to outside temperature change, but it does not affect the
performance.
For preventing damage at sea
When
the transducer or the hoisting device is damaged at sea, the sonar system cannot be used,
accordingly, the operation or safe navigation is sometimes hindered. Furthermore, it takes a large
amount of time and cost to exchange and repair the transducer or the hoisting device.
In order to prevent these accidents from occurring, store the transducer by performing the
following operations when conditions are as described below.
1. Condition
1) Sea condition with many float and drift
2) The case of getting out of an encircling net by a lightship of round haul netter fleet
3) A shallow place where ropes or wires are set up under seas
4) During an anchorage of a ship
2. Transducer storage operation
1) Press the ascent key of the hoisting device of the controller and store the transducer.
2) During ascending, an ar
rowhead “

” is indicated in upper right of the screen and the
display bar of the hoisting amount is gradually reduced.
3) When the transducer is stored and the hoisting device goes up to the upper limit, the
upper limit message is displayed and the hoisting device stops.