Quick BTQ2512012 User Manual page 19

THE THRUSTER
LH
0 1 2 3 4
BOW THRUSTER BTQ250 - BTQ300 IT GB - REV002A
RH
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INSTALLATION
• The thruster can be installed at any angle within 90°
from vertical.
• If the electric motor is positioned of necessity at an
angle of more than 30° from vertical, a special support
must be constructed.
• To position the thruster in the tube, fi nd the half-way
point so that the fl ange is positioned exactly half way
along the internal length of the tunnel.
• Use the fl ange to mark the centre of the holes on the
tube.
• Fix the drilling template on the reference points,
making sure they are aligned with precision at the half-
way point of the tube.
N.B. All holes must be exactly aligned with the half-way
point of the tunnel, since tolerance between propeller
and tunnel is minimal.
• Take care that there are no resin residues in the
contact area between flange and tube; this could
cause misalignment. Any resin residues and any other
hindrance to correct contact must be removed by
sandpaper.
• Insert two o-rings into the special seats inside the
fl ange.
GB
19