XF
Rev: 4, 2010-02-01
Page 11
4.1.3.
Cutting holes
The installation process can begin once the location of the tunnel has
been marked.
NB:
Do not cut complete circles at first. Small “ears” should be left at the
top and bottom of the circle in order to support the tool during the
operation. A file can then be used to remove the “ears” once both holes
are complete.
4.1.4.
Tunnel centre hole
Drill the centre holes (diam. 25mm) for the tool centre tube on both sides
of the hull.
Enter the tool centre tube through the hull from the outside and cut out the
large holes from both sides
It is important to cut with care by turning the tool several times making it
possible for the cutting machine to work itself through the hull.
4.1.5.
Adapting the tunnel
NB:
Please read point no. 5.1.1 “Directions for high speed boat special
installations”.
Enter the tunnel and mark out where to cut where the tube is protruding.
Cut off and adapt the tunnel on both sides.