25
EN
BOW THRUSTER BTQ250 - BTQ300 IT EN - REV006C
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 prot cable
29
Command wire
MAINTENANCE