vetus®
Operation manual and installation instructions bow thrusters BOW7512D and BOW7524D
24
020536.06
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.
[1]
- Check if the main fuse has burnt out.
[2]
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
[1]
- 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.
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.
.
[2]
8
Technical data
Type
:
BOW7512D
BOW7524D
Electric motor
Type
:
reversible DC motor
Voltage
:
12 V DC
24 V DC
Current
:
550 A
[3]
315 A
[4]
Rated output
:
4.4 kW
No. of revolutions
:
2900 rpm
Rating
:
S2 - 2 min.
[3]
S2 - 3 min.
[4]
Protection
:
IP20
Motors conform to CE (80/336/EEC, EMC - EN60945)
Transmission
Gears
:
Bevel gear helical teeth
Gear ratio
:
1.3 : 1
Lubrication
:
oilbath, approx. 0.06 litre (2 fl.oz.)
outboard gear oil SAE80W or EP 90
Housing
:
bronze
Propeller
Diameter
:
178 mm (7”)
No. of blades
:
6
Profile
:
asymmetrical
Material
:
polyacetal (Delrin ®)
Rated thrust
:
800 N
(80 kgf, 180 lbf)
850 N
(85 kgf, 191 lbf)
Control circuit
Fuse
:
Blade type fuse ‘ATO’ 5 A
Current solenoid switch
:
2.8 A
1.4 A
Control circuit wires
:
1.5 mm
2
(14 AWG)
Extension cable
:
6, 10, 16, 18 or 20 m
(20’, 33', 52', 59', or 65')
Thrust-tunnel
Steel model
dimensions
: O.D. 194 mm, wall thickness 5.6 mm
treatment
:
blasted, coated with: SikaCor Steel
Protect. Suitable for all kinds of
protection systems.
Plastic model
dimensions
:
I.D. 185 mm, wall thickness 5 mm
material
:
glass fibre reinforced polyester
Aluminium model
dimensions
: I.D. 185 mm, wall thickness 5,5 mm
material
:
aluminium, 6061 or 6062
(AlMg1SiCu)
Weight
Excl. thrust-tunnel
:
26 kg (57 lbs)
Length of usage:
[3]
2 min. continuously or max. 2 min. per hour at 550 A (12 Volt).
[4]
3 min. continuously or max. 3 min. per hour at 315 A (24 Volt).
ENGLISH
