BT QSY
Series
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BTQSYSeries
INSTALLATION AND USER’S MANUAL - REV001B
10
4 - Installation
4.2 - Thruster
• The thruster can be installed at any angle within 90º from
the vertical.
• If the electric motor is positioned at an angle of more than
30° from the vertical, an appropriate support (saddle) must be
installed.
SINGLE PROPELLER
DOUBLE PROPELLER
•
To position the thruster in the tube, find the half-way point
of the tube and move by the value indicated (left or right, see
box) in the diagram below so that the propeller is positioned
exactly in the middle of the inner length of the tunnel.
•
To position the thruster in the tube, find the half-way point
of the tube and move by the value indicated (left or right, see
box) in the diagram below so that the propeller is positioned
exactly in the middle of the inner length of the tunnel.
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0
2
3
4
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6
7
8
9
10
1
0
2
3
4
1
0
2
3
4
BT QSY 140 50 mm
1
0
2
3
4
5
6
7
8
9
10
•
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 with sandpaper.
BTQ SY Ø140/185/250/300
•
Insert two O-rings into the special seats inside the flange.
