25
EN
BOW THRUSTER BTQ250 - BTQ300 IT EN - REV006A
Quick
®
Thrusters are made in materials that are resistant to the
sea environment: In any case, it is indispensable to periodically
remove salt deposits that form on the outer surfaces to avoid cor-
rosions and consequent system inefficiency.
WARNING:
make sure that the power supply to the elec-
tric motor is not switched on when maintenance operations
are carried out.
Dismantle once a year, following the points below:
• Clean propellers (12 and 13), tunnel and gearleg (10).
• Replace the zinc anodes (carry out this operation more often if
needed).
• Replace the propellers if damaged or worn out.
• Check the tightness of all screws.
• Ensure that there is no water seepage inside.
• Check that all electrical connections are well tightened and
oxide-less.
• Check that the batteries are in good conditions.
WARNING:
do not paint the zinc anodes (15), the sealings
and the gearlegs’ shafts where the propellers are lodged.
POS.
DESCRIPTION
1 Motor mounting screw
2 Motor mounting washer
3 Motor
4 Key
5 Half-joint
6 Even tension device
7 Motor flange
8 O-Ring
9 Gearbox gasket
10 Gearleg
11 Key
12 Starboard propeller
13 Port propeller
14 Self-braking nut
15 Anode tip
16 Anode tip mounting screw
17 Grower
18 Gearleg mounting screw
19 Clamp reversing contactor unit
20 Screw
21 Grower
22 Washer
23 Screw
24 Reversing contactor unit
25 Carter spacer B
26 Carter reversing contactor unit
27 Fasteners carter reversing contactor unit
28 BTQ thermal protection + cable
29 Command wire
MAINTENANCE
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