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INSTALLATION
EN
Closing lid's preparation and installation
Fig. 11
CENTRAL SCREW
Fig. 12
HULL
20 mm
Fig. 13
Thruster's installation
Fig. 14
• Position the gasket on the counter flange, assemble the thruster, spread marine grease on the thread of the bolts (already
screwed in the counter flange) and fasten securely with supplied screws (fig.14).
WARNING: about one week after installation, you should check that all screws are properly tightened in order to compen-
sate for any potential gasket settling.
26
• Temporarily fasten the hinge bracket in its housing.
• Screw the hinge onto the angle bar with the central screw only (fig. 11).
• Position the hinge and hinge bracket correctly in the correct positions.
Mark all the fastening points (fig. 12), remove the hinge and hinge bracket
and drill using the Ø 8.5 mm bit.
Fasten the hinge and hinge bracket in the positions marked with stainless
steel hardware suitable for the application.
Adjust the central screw of the hinge (fig. 11) and position it correctly so
that the hatch opens without any hindrance.
COUNTER FLANGE
LID
N 2 SCREWS M8
• Drill the angle bar
and fasten securely
with the other two
M8 screws (fig. 13).
THRUSTER
HULL
Min. 5 mm
HINGE
WARNING: in order to allow a stable fixing of hinge and bracket,
the lid must present neither empty areas nor non-structural fillings
inside (fig. 12).
CONVERSION FROM DECIMAL TO FRACTIONAL INCHES
3 mm =
5 mm =
8 mm =
8,5 mm = 21/64" in
10 mm = 25/64" in
20 mm = 25/32" in
25 mm =
ANGLE BAR
Min.
90 mm
Max
HULL
50 mm
1/8" in
50 mm =
3/16" in
100 mm =
5/16" in
130 mm =
140 mm =
420 mm = 16" 17/32 in
480 mm = 18" 29/32 in
1" in
BOLT
GROWER
WASHER
GASKET
COUNTER FLANGE
RETRACTABLE THRUSTER BTR250 - IT EN - REV08B
1" 31/32 in
3" 15/16 in
5" 1/8 in
5" 33/64 in
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