Page 47
WESMAR
INSTALLATION AND OPERATION
WESMAR’s Optional Long Stroke
Hydraulic Hoists
To get longer range and better performance from your
HD800 when moving fast or in rough waters, order the
sonar with a Hydraulic Hoist.
Air is a perfect sonar target, and will scatter sound
energy. Under normal fishing conditions and high
speeds, air bubbles often reach a thickness under
the vessel that can surround the soundome and af-
fect performance. Wind also creates bubbles at the
water’s surface.
WESMAR’s Hydraulic Hoists get below the air
bubbles to keep the soundbeam clear and provide
high performance.
INSTALLATION
NOTE:
The lead screw hoist is in the “Up” position when
shipped. Keep this in mind during installation.
1.0
SOUNDOME TUBE LENGTH
To determine the minimum length of a soundome
tube for a 6-inch soundome, measure the length of
the seachest and add:
10.2 cm (4 inches) for a 6-inch soundome
Note: The 8-inch soundome comes standard
with the Ram Hoist, see Part D. If there is
not enough overhead clearance for a Ram
Hoist, a special-order lead screw hoist may
be used. To determine the minimum length
of a soundome tube for an 8-inch soundome,
measure the length of the seachest and Add:
12.7 cm (5 inches) for an 8-inch soundome
Allow at least 10.2 cm (4 inches) of clearance between
the top of the soundome tube and the overhead when
the soundome is in the raised position.
When the proper length of soundome tube is deter-
mined, measure from the threaded end, cut, and file
the rough edges off.
If overhead clearance is adequate, the soundome
tube may be left uncut.
2.0
ATTACHING SOUNDOME
TUBE TO SOUNDOME
2.1 Check Soundome Clearance
Before threading the soundome tube into the soundome, check
to ensure there is clearance to allow the soundome to
move freely up and down in the seachest. Soundome may
be handled by the soundome cable to check clearance.
It may be necessary to fi le down the fi ns of the soundome
so it fi ts into the seachest. The clearance around the
soundome should not be greater
than 1.6 mm (1/16 inch).
2.2 Attaching Soundome Tube to Soundome
Содержание HD800/110-10
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