Fishplanebeer

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Dear All,

 

Have just bought a 3-Rail Dublo 'Atholl' which has one of the valve gear pins missing.

 

I can find a supplier for a replacement but have no idea how I will go about fitting it, especially as the new pins seem to be around 1/2 inch long so much too long.

 

Any suggestions/advice please?

 

Kind Regards

Colin.

 Dear All,

 

The news that Ron's demagnetiser is no more is totally false as I just collected mine from him this afternoon (he lives very local).

 

A great piece of kit from a wonderful chap who went to great lenghts to show me how it worked, re-mag'd my ailing horse-shoe Atholl and also showed me his HD layout as well- wow!

 

I think the deal now doesn't include the multi-meter but as they are as cheap as chips and I already have one then not an issue as it's still incredibly cheap at twice the price. No more sending off for an 'expert' to do the business or having to use neos so I'm now off to remove all my neos and reinstate the originals.

 

Kind Regards

Colin.

Dear All,

 

Does anyone know if Ron Dodd still supplies his re-magnetiser by special request as I know they are no longer generally available?

 

My loco collection is quite small at 7 so I tend to use neo magnets when the originals begin to fade as it's cheaper than having to send them off to a specialist restorer. However as neos can cause greater wear and tear to the bearings and my collection will probably expand over time I'm wondering if Ron may be willing/able to oblige possibly?

 

I'm no longer a HRCA member and don't use/access the Dublo Facebook group so have no idea how to contact him directly to ask the question so I'm hoping someone may be able to help in some way.

 

Kind Regards

Colin.

Dear All,

 

In the middle of servicing all my Dublo locos and inparticular seeing how much current/amps they draw as this will highlight possible issues in terms of the magnet, brushes, insulation etc. As such I've watched the Ron Dodd You Tube video where he very clearly shows how to use a multi-meter connected in series to carry out the test.

 

My question is that during the video he says that his test loco is drawing 4.5 amps (?) even though the multi-meter reading clearly shows 0.45. As my A3 controller delivers 0.9 amps (and my Duette around1.2 amps) I'm assuming Ron got his decimal points mixed up here and that 0.45 is correct?

 

Kind Regards

Colin.

Dear All,

 

Will a neo magnet still work effectively if it has a small piece chipped off?

 

I'm about to fit one into an old Dublo 3-rail 2-6-4 tank loco but it has a chip at one of the corners so don't want to remove the original magnet plus pole pieces and completely kill it  if the neo is no longer useable.

 

Kind Regards

Colin.

 Apologies for the various typos but hopefully they don't detract from my question!

 

Kind Regards

Colin.

Dear All,

 

My understanding of all things electrical is very limited so I have a question that those far more knowledgeable may be able to answer/clarify regarding Dublo armatures.

 

My understanding is that they either work or they don't but do they actually degrade over time and increase in resistance resulting in the loco drawing more amps?

 

The reason for asking is that I recently tested an armature and the segments all gave a reading of around 7 ohms compared with the 4.5-ish that Ron Dodd achieved in his related You Tube video.  On this basis I'm assuming that the greater the resistance the windings have the more power (amps) it will require in order to work and as a consequence the koco will theh run at a higher amps level.

 

As I say my knowledge of elecrtics is limited so am I barling up the wrong tree here perhaps?

 

KInd Regards

Colin.

 Dear All,

 

Probably preaching to the converted here but as per the Ron Dodd's You Tube videos a multi-meter seems to be an essential piece of kit to sort out problems with locos and track. It has certainly helped me to identify issues and resolve them which oterwise would have been very much a case of hit and miss.

 

Kind Regards

Colin.

 Roger,

 

That is very kind indeed but it still leaves me with the problem of accessing the armature to remove and test it as I suspect it may possibly require a good clean at the very least along with the inner walls of the magnet as well.

 

The good news is that despite not having Ron Dodd's special tool to widen the magnet's arms I finally managed to loosen it late last night by VERY carefully gripping one of the magnet's arms and gently twisting the magnet around its axis. Great care is needed as if you twist too hard then you can distort the actual chassis itself. I'm now in a position to test the armature using a multi-meter and send off for a rewind depending upon the results, plus replace the original magnet with a neo version from Mainly Trains/ other supplier.

 

Thank you again for your very kind offer

Kind Regards

Colin.

 There is a You Tube video by Ron Dodd, the godfather of Dublo, where he demonstrates servicing a horse-shoe magent loco and his advice is NOT to remove the original but fit neos either side to improve performance, unless you have a special tool to widen the arms of the magnet. And even then there is a good chance you will damage the armature in the process.

 

That's fine but, firstly I don't have his special tool, secondly the Atholl body will not accommod any extra neos however small they may be, and finally it means you can never access the armature to either clean or replace.

 

Regards

Colin.

 

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