Electrical Contactor speed control on BEV WR5

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rowehillmaster
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Electrical Contactor speed control on BEV WR5

Post #1 by rowehillmaster » Sun Feb 23, 2020 10:37 pm

Hi, I volunteer at the Golden Valley Light Railway on my weekends, in the workshops - I have been tasked with restoring/recommissioning this BEV WR5 loco that came from Wheal Jane in Cornwall in the early 90s when it closed.

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It is missing its contactor block assembly, (I have tried to show it in the second pictures) does anyone on here know anything about this type of controller, I am told it is like some Lansing Bagnal trucks ?


Jeremy Rowland
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Re: Electrical Contactor speed control on BEV WR5

Post #2 by Jeremy Rowland » Mon Feb 24, 2020 8:53 am

Hi Andy, I don't know who owns Lansing Bagnal these days but there must be a parts distributor for them, possibly a local forklift truck specialist, they may be able to help you.

Jeremy


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Re: Electrical Contactor speed control on BEV WR5

Post #3 by rowehillmaster » Tue Feb 25, 2020 8:50 am

... i think it is part of Linde now, we have some Linde equipment at work - I will chase up 'the heavy gang' as they are known (one of the lift trucks is 40t) to try and get a chat with a rep or something. I have found out quite a bit more - not all the locos were the same, a 'yard shunter' did not have the switcher like ours - it had a 'Pulse-o-matic' Mk10 controller, an 'electronic' controller made by Cableform in the 1970s - another option ? - the wiring diagram for that shows how the six wire motor, 2 Armature A &AA , 2 field coils Y1 & Y2 and Y3 & Y4 are configured for that type of controller

.... go back 2 years and I broke a Cushman Titan 48v Truck (and of course squirrelled away all the guts) which has a Curtis controller, a yank version of the Pulse-o-matic ? - more wiring diagram searching !

Andy


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Re: Electrical Contactor speed control on BEV WR5

Post #4 by Jeremy Rowland » Tue Feb 25, 2020 8:53 am

I should think a good competent forklift truck fitter/sparky would be able to put you in the right direction, sadly I'm crap at electrics short of a broken wire corroded terminal or blown fuse.

Jeremy


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Re: Electrical Contactor speed control on BEV WR5

Post #5 by rowehillmaster » Sat Feb 29, 2020 6:50 pm

I have spoken with three very helpful people, but one has came up trumps - he knew of a modern equivalent to the unobtainable Sevcon switch elements, that are produced by Schaltbau, - not identical, so not a straight swap, which means you would have to modify the carrier, but as we don't have a carrier its no problem, I will just make one to fit.

I looked into getting some and they are quite expensive to by new from a UK supplier, then he told me last night of a source in the USA where I have just bought 4 from that with tax and shipping are less than 1 in the UK !

- here is an initial CAD design I have done

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Re: Electrical Contactor speed control on BEV WR5

Post #6 by Jeremy Rowland » Sat Feb 29, 2020 8:28 pm

Looking good :thumbup: best of luck with it let us know how you get on. :wave:

Jeremy


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