Installation Of The Thrust Tunnel; Tunnel In Two (2) Parts - Vetus THRUSTER RimDrive RD125 Instrucciones De Instalación

3 .5

Installation of the thrust tunnel

Consult the 'Owners manual' , chapter 6 Technical data, for dimen-
sions and material specifications. of the tunnel.
Drill 2 holes into the ship's hull, where
the centre line of the thrust tunnel will
be, in accordance with the diameter of
the marking tool.
Pass the marking tool (home-made)
through both pre-drilled holes and set
out the outside diameter of the thrust-
tunnel to the hull.
D [mm]
Staal Polyester Aluminium
267 265
Dependent on the vessel's construction
material, cut out the holes by means of a
jigsaw or an oxy-acetylene cutter.
Polyester thrust tunnel:
Resin: The resin used for the polyester thrust tunnel is Isophtalic
polyester resin (Norpol Pl 2857).
In order to connect the tunnel to the hull of the boat we rec-
ommend to apply epoxy resin. As an alternative to epoxy resin,
vinylester resin can also be used. The use of polyester resin as an
alternative to epoxy resin is not recommended.
Pre-treatment: The outside of the tunnel must be roughened.
Remove all of the top surface down to the glass-fibre. Use a
grinding disc for this.
Remove the gelcoat on the inside of the tunnel too by sanding
or grinding. This is necessary to get a good bond to the GRP.
Important: Treat the end of the tunnel, after it has been sawn
to length, treat the end of the tube with resin. This will prevent
water seeping in.
Laminating: Apply a coat of resin as the first coat. Lay on a glass-
fibre mat and impregnate with resin. Repeat this procedure until
you have built up a sufficient number of layers.
A polyester thrust tunnel should be finished as follows:
• Roughen the hardened resin/glass-fibre. Apply a top coat of resin.
• Treat the side of the tunnel which
comes into contact with water with
'epoxy paint' or 2-component polyu-
rethane paint.
• Then apply anti-fouling treatment if
required.
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ip
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264
3 .6

Tunnel in two (2) parts

In order to simplify the installation of the tunnel tube with the right
intermediate distance is a set of spacers available.
The set consists of three strip spacers (1) and 6 shims (2); Art. code:
RDSET
Assemble the two parts of the tunnel, use the supplied strip spacers
(1) and the clamping straps (2) as shown in the drawing.
Use shims (3) during assembly to prevent deformation of the clamp-
ing straps (2).
Make sure that the tunnel parts in the longitudinal direction abut
against the stops of the strips. Then the tunnel parts will be correctly
aligned and at the correct distance from each other.
Use only the clamping straps to secure the strips!
Do not use the rubber sleeves and the plastic slabs!
1
3
Place the tunnel from the inside
into the holes.
Connect the tunnel to the hull of
the ship.
Remove the clamping straps and remove the strip spacers and shims
The strip spacers and shims are furthermore no longer necessary.
vetus® Installation instructions thruster RIM DRIVE 250 mm
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