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TOPIC: QL Bow Thruster BP1200

QL Bow Thruster BP1200 09 Jun 2018 14:28 #99290

Can you please add him to the SUPPLIERS Guide?

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Tim & Jo Hackett plus moggie
Maria of Zaandam

Dutch Barges are only built in the Netherlands. Anywhere else is something else.

Our rivets are real not fake!

QL Bow Thruster BP1200 07 Jun 2018 15:40 #99242

  • Martin Nunan
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Hi All

eventually got the professionals in. A guy called Martin from Elekto-Zeeland in Ghent tel:09 2255727 came out. He arrived punctually and was very efficient, a little pricey along with everything in Belgium but would recommend him to you all.

now off on our first cruise

regards
mpn

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QL Bow Thruster BP1200 22 May 2018 18:48 #98890

  • Martin Nunan
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Thanks Paul
will let you know how I get on
regards
mpn

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QL Bow Thruster BP1200 22 May 2018 18:08 #98889

  • Paul Hayes
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Hi Martin

Just found this, It's a Solenoid valve, but the principle is the same, though you will have a "Pair" working at the same time. Instead of a rubber diaphragm you will have contacts.
www.youtube.com/watch?v=yPEsntRlpQE&t=186s
Good luck
Paul Hayes

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QL Bow Thruster BP1200 22 May 2018 17:58 #98888

  • Paul Hayes
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Hi Martin
Wrong country I'm afraid. So cannot suggest anyone. Any "Industrial" maintenance electrician should be able to sort it out. How you find one in Belgium I have no idea "Yellow pages"?
You say it runs to port. So assuming it is a brushed motor, the only thing that "reverses" the direction is by reversing the polarity of the supply. As it's "running" to port OK, the brushes, coil and armature wiring must be OK.
Have you tried pushing the "Starboard" solenoid "slug" down with a pen, if you push firmly the contacts should "make" and the motor ru It should be "Magnatised" close - spring open.

I suspect a "Dirty Slug", that is failing to make a good firm contact when magnetised. if you strip down the solenoid, and check for free movement of the "Slugs", clean and reassemble you will probably fix the problem.

There is a possibility that the contacts are "Burnt out" poor pressure from the slug exasperates this, also the "splash" when the current is broken in DC switching can be quite high. Many people "Pulse" "short jabs" with bowthrusters, this is the worse possible thing to do for "splash" damage to the contacts. Clean them up with a fine file or emery paper (remember to clean off all carbon dust afterwards) sometimes puts a new lease of life in the contacts.
Some Solenoid makers sell replacement contact kits, rather than having to replace the whole solenoid.
I hop the above makes sense.
Remember to Isolate and disconnect the supply batteries before doing any work, a DC short makes a hell of a flash. Take photos during the strip down and mark all components for correct reassembly.
Good luck
Paul Hayes
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QL Bow Thruster BP1200 22 May 2018 08:52 #98883

  • Martin Nunan
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Morning

Kortrijk in Belgium about half an hour from Ghent


cheers

mpn

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QL Bow Thruster BP1200 21 May 2018 19:18 #98873

  • Paul Hayes
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Hi Martin
"recommend a electrician that will come out to the barge"
Where is the barge?
Paul Hayes

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QL Bow Thruster BP1200 21 May 2018 17:43 #98868

  • Martin Nunan
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Hi All,

on our maiden voyage our bow thruster failed, will now only push to port and when switching to starboard you can hear a audible click but will not start the motor. Have tried testing up to the solenoid so have isolated everything up to the motor. the motor will push to starboard once or twice before cutting out. Bow thruster is a QL BP1200 marketed by Volvo Penta.

we are currently moored in Kortrijk so can anyone recommend a electrician that will come out to the barge and fix this for us? Think that it has now got past my technical knowhow.


thanks

Martin P. Nunan

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