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8
Trouble shooting
Electric motor does not operate
- Check that the battery main switch is 'ON' .
- Check whether the control panel fuse has burnt out.
- Check if the main fuse has burnt out.
In all the above cases, the 'POWER' indicator LED is not lit.
- The electric motor has overheated and its thermal Protection has
broken the circuit of the control current.
The panel gives a warning signal three times ( . - . . - ) and the LED
will glow red.
As soon as the motor has cooled down enough, the LED will re-
sume glowing green and the bow thruster can be put back in ser-
vice.
Check if it is possible to turn the propeller. A piece of wood or similar
could have been caught between the propeller and the tunnel.
Electric motor turns slowly
- The battery is flat.
- Bad electrical connection(s) due to e.g. corrosion.
- The carbon brushes are not making proper contact.
- The battery capacity is reduced because of very low temperatures.
- Weed or fishing line has become caught in the propeller.
Control panel fuse is burnt out
- Short circuit in the operating circuit; check the wiring.
Electric motor turns (too) fast but there is no thrust
- The blades of the propeller have been damaged by a foreign ob-
ject having entered the propeller or tunnel.
After pressing the on/off switch on the panel, the panel is
not switched on.
- The on/off switch must be pressed a second time within 6 sec-
onds.
The LED will then remain green and the buzzer will confirm that
the panel is ready for use by giving the signal (- . -).
[1]
The control current fuse is in the bow thruster motor. A spare fuse
can be found in the relay cap, see p. 114.
[2]
See table on page 107
24
020529.06
[1]
[2]
[1]
9
Technical data
Type
:
Electric motor
Type
:
Voltage
:
Current
:
Rated output
:
No. of revolutions
:
Rating
:
Protection
:
Transmission
Gears
:
Gear ratio
:
Lubrication
:
Housing
:
Propeller
Diameter
:
No. of blades
:
Profile
:
Material
:
Rated thrust
:
Control circuit
Fuse
:
Current solenoid switch
:
Thrust-tunnel
Steel model
dimensions
: O.D. 320 mm, wall thickness 7,5 mm
treatment
:
Plastic model
dimensions
: I.D. 300 mm, wall thickness 10 mm
material
:
Aluminium model
dimensions
: I.D. 300 mm, wall thickness 10 mm
material
:
Weight
Excl. thrust-tunnel
:
Length of usage:
[3]
2.5 min. continuously or max. 2.5 min. per hour at 760 A (24 Volt).
Installation and user manual bow thruster BOW22024D
BOW22024D
reversible DC motor
24 V DC
760 A
[3]
11 kW
2000 rpm
S2 - 2,5 min.
[3]
IP20
Bevel gear helical teeth
1.39 : 1
oilbath, approx. 0.2 litre (6.8 fl.oz.)
outboard gear oil SAE80W or EP 90
bronze
295 mm (11 5/8")
7
asymmetrical
polyacetal (Delrin ®)
2200 N (220 kgf, 495 lbf )
Blade type fuse 'ATO' 5 A
1.4 A
blasted, coated with: SikaCor Steel
Protect. Suitable for all kinds of
protection systems.
glass fibre reinforced polyester
aluminium, 6061 or 6062
(AlMg1SiCu)
68 kg (150 lbs)
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