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1. MOUNTING
Mounting method
A typical mounting method is shown in the outline drawing at the back of this manual.
Consult ship's owner, dockyard and user to determine appropriate mounting method.
Pay attention to safety (strength, watertighness) first, followed by ease of mainte-
nance and inspection.
Tank length
Shorten the transducer tank so the transducer is
lowered into water as deep as possible.
Pay particular attention to the tank length Lt.
Determine the length of the main shaft as described
in the paragraph "Assembling and mounting of hull
unit" on page 1-3.
Note 1: Do not shorten the 1 meter retraction tank.
Shortening it may also necessitate shortening of
the top part of the main shaft, thereby destroying
the watertight construction of the 1.17 meter shaft.
Note 2: When the retraction tank is constructed lo-
cally, finish it so that welding beads do not protrude
on the inner surface of the tank. The tank guide will
hit the bead, burning out the raise/lower motor. Al-
so, do not position the welding bead in the ship's
fore-aft line.
Note 3: Use of other manufacturer's tank is permit-
ted. However, the dimensions should be the same
as those in the transducer tank outline drawing.
Mounting of transducer tank
Install the transducer tank referring to the hull unit out-
line drawings at the back of this manual.
Note: Locate one of the bolt holes 10° to port to mini-
mize mechanical shock at the raise/lower block during
pitching and rolling.
1-2
Cable gland
Washer
Gasket
Main shaft
(1.17 m
Welding bead
Wealding bead
10°
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