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7
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
resume glowing green and the bow thruster can be put back in
service.
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 tempera
tures.
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.
The drive pin on the propeller shaft has been broken by a foreign
object having entered the propeller or tunnel.
Replace the drive pin and check the propeller flange for any dam
age.
[1]
The control current fuse is in the bow thruster motor. A spare fuse
can be found in the relay cap, see p. 70.
[2]
See table on page 69
16
020573.02
[1]
[2]
[1]
8
Technical data
Type
Electric motor
Type
Voltage
Current
Rated output
No. of revolutions
Rating
Protection
Motors conform to CE (80/336/EEC, EMC EN60945)
Transmission
Gears
Gear ratio
Lubrication
Housing
Propeller
Diameter
No. of blades
Profile
Material
Rated thrust
Control circuit
Fuse
Current solenoid switch
Control circuit wires
Extension cable
Thrust-tunnel
Steel model
dimensions
treatment
Plastic model
dimensions
material
Aluminium model
dimensions
material
Weight
Excl. thrusttunnel
Length of usage:
[3]
4 min. continuously or max. 4 min. per hour at 375 A (12 Volt).
vetus® Operation manual and installation instructions bow thrusters BOW4512D
:
BOW4512D
:
reversible DC motor
:
12 V DC
:
375 A
[3]
:
3 kW
:
3400 rpm
:
S2 4 min.
[3]
:
IP20
:
Bevel gear helical teeth
:
1 : 1
oilbath, approx. 0.04 litre (1.4 fl.oz.)
:
outboard gear oil SAE80W or EP 90
:
bronze
:
122 mm (4 13/16")
:
6
:
asymmetrical
:
polyacetal (Delrin ®)
450 N
:
(45 kgf, 124 lbf )
:
Blade type fuse 'ATO' 5 A
:
2.8 A
:
1.5 mm
2
(14 AWG)
6, 10, 16, 18 or 20 m
:
(20' , 33' , 52' , 59' , or 65')
: O.D. 133 mm, wall thickness 4 mm
blasted, coated with: SikaCor Steel
:
Protect. Suitable for all kinds of
protection systems.
:
I.D. 125 mm, wall thickness 5 mm
:
glass fibre reinforced polyester
:
I.D. 125 mm, wall thickness 4 mm
aluminium, 6061 or 6062
:
(AlMg1SiCu)
:
20 kg (44 lbs)
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