Vetus BOW22024 Manuel D'utilisation Et Instructions D'installation page 14

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Installation instructions
These installation instructions give guidelines for fitting the
Vetus bow thruster 'BOW22024'.
The standard of fitting determines the reliability of the bow
thruster. Almost all faults experienced can be traced back to
mistakes or inaccuracies during fitting. It is therefore of the
utmost importance to follow the installation instructions meticu-
lously during fitting and to check these carefully.
Make sure that the user of the vessel is supplied with the
owner's manual.
Installation recommendations
Important!
The areas in which the electric motor of the bow thruster
and the battery are positioned must be dry and well venti-
lated.
Positioning of thrust tunnel
To achieve the optimum performance, position the thrust tunnel
as far forward as possible.
If, in addition to controlling the movement of the bow, the stern
of the vessel is required to move sideways, then a second
thruster may be installed at the stern.
If the vessel planes the
tunnel should, if possible,
be so situated that when
the vessel is planing it is
above the water level thus
causing no resistance.
Installation of two bow
thrusters in tandem (for
larger boats). In this case,
depending on weather con-
ditions, one or both bow
thrusters may be used.
We do not advise fitting 2
bow thrusters into one tun-
nel; this does not result in
doubling the thrust!
12
020529.03
When choosing the loca-
tion for the thrust tunnel,
take the following into
account for optimum per-
formance:
• The distance A shown
in the drawing must
be at least 0.5 x D
(where D is the tunnel
diameter).
• The length of the tun-
nel
(distance
should be between 2 x
D and 4 x D.
Positioning of the bow thruster in the thrust-
tunnel
When determining the exact position of the bow thruster in the
thrust tunnel, it should be taken into account that the tailpiece
may NOT protrude from the tunnel end.
The thruster should preferably be situated on the centreline of
the vessel, but it must always be accessible from the outside.
The electric motor can be installed in various positions.
If the motor is installed horizontally, a support is absolutely nec-
essary. The electric motor must be positioned in such a way that
it is always well clear from the maximum bilge water level
(
).
Operation manual and installation instructions Bow thruster 220 kgf, ø 300 mm
B)
D = 300 mm (11.8")
A = min. 150 mm (5.9")
B = 600 .. 1200 mm (23.6" .. 47.2")

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