EN
BTQ110-125 INSTALLATION AND USE MANUAL - IT EN - REV004A
22
BTQ110/125
4 - Installation
4.2 - The Thruster
To position the thruster in the tube, find the
half-way point and move to the value shown (to
the right or to the left. See FRAME) in the table
below so that the propeller is positioned exactly
half way along the internal length of the tunnel.
• Use the flange 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.
• The thruster can be installed at any angle with-
in 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.
1
0
2
3
4
5
6
7
8
9
10
1
0
2
3
4
1
0
2
3
4
BTQ110 50 mm
BTQ125 50 mm
• Insert one o-ring into the special seat inside
the flange.
