Vetus STE5512D Manuel D'utilisation page 20

6 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 blue 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.
The shear pin of the actuator is broken
By mechanical overload, e.g. an obstacle has
forced the hatch or cruising a high speed
while the thruster is deployed, the shear pin
can break.
- Make sure that the tunnel can move free-
ly up and down and if necessary, elimi-
nate the cause of the breaking of the pin.
- Install new shear pin and refitted the
safety clips.
- Reconnect the wiring tot the shear pin.
Reset the panel after replacement of the
shear pin by pressing the on/off switch twice.
[1]
The control current fuse is in the bow thruster motor. A spare fuse
can be found in the relay cap, see p. 90 - 95.
[2] See table on page 18-19
20
020584.02
[1]
[2]
Control circuit 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.
This is not applicable for the 125 kgf and 160 kgf thrusters!
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vetus® Operation manual Retractable Thrusters
[1]