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Jeff's (SRman) work bench and projects - On Members Workbenches. - More Practical Help - Your Model Railway Club
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 Posted: Fri Oct 20th, 2017 09:49 am
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SRman
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For my pre-grouping trains, I rather admired Hornby's forthcoming Crystalate wagon, but the catalogue illustrations showed the huge, clunky coupling. I had rather hoped they would use something finer, but when it came out very recently, sure enough, clunky and chunky couplings were present. However, a little bit of investigation showed that they were of the Dapol-style clip in type. A while back, I discovered that the first release new-style Hornby Pullman couplings were a direct clip-in replacement for the larger couplings. As the all of my early Hornby Pullmans were modified with the slightly later NEM pocket couplings and revised bogies (parts that Simon Kohler, in Hornby's name happily supplied), I have a reasonable supply of these finer couplings. 

The original coupling type, removed from the wagon:




The replacement ex-Pullman coupling:




The underside of the wagon with the replacement couplings in place.




And the wagon as it is now. I'm much happier with it with the finer couplings. Perhaps it could do with a little weathering, but then again, a lot of my other P. O. and railway company wagons also need that.



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 Posted: Wed Oct 25th, 2017 11:53 am
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SRman
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Well, I got cracking and fitted the Kadee #20 couplings to both units. I was also going to perform a decoder swap with another (completely different) unit that I had recorded on my spreadsheet as having a Lenz decoder, but only requiring two functions. However, on reading the decoder on that unit, it turned out to be manufacturer 48, i.e. Hornby, which means I have now located my second Sapphire decoder! The result of this was that the Zimo MX634D decoder had to remain in the TC for the time being, so I decided to have another go at programming a Zimo to work the lights properly in these TC units. 

I am extremely proud to announce I got it to work.

I started by programming a value of 3 into CV8, then 3 into CV 124 (actually already in there but I wanted to be sure). Then I moved to JMRI Decoder Pro to read the functions, and changed a few checkboxes. The screen shots below were actually a dummy run to duplicate the settings as I didn't take screen shots while I was actually doing the programming. The first shot is the "before" and the second is the "after" - the area with the orange highlight is the section I was playing with.





The upshot of all this is that both units now have operable interior lights. The following shots and video show the combined train in action, with blue unit 416 (with Lenz Silver 21 decoder) leading blue/grey unit 404 (with the Zimo decoder), propelled by Heljan 33/1 D6520 with legomanbiffo sound (ESU LokSound). The video also shows bif's drive lock feature in action; the speed is held while the engine has been ramped up to full thrash. The interior lights on the Lenz decoder work on F5, while the Zimo one works them on F3. I didn't want to tempt fate by fiddling further to try to get them on the same F keys!










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Jeff Lynn,
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 Posted: Wed Oct 25th, 2017 12:19 pm
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Passed Driver
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Hi Jeff.  Good work as usual. I am still faffing about with screws for Kadee , my growing dislike for eBay and my goods travelling half way around the World to get here usually Hong Kong or similar , Perth WA being the latest along with the waiting for the stuff to arrive.  Best wishes. Kevin



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