CR Diagram 46 Underframes (Model ones that is)

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tony brenchley
Posts: 348
Joined: Sun Aug 26, 2012 10:36 am

CR Diagram 46 Underframes (Model ones that is)

Post by tony brenchley »

Those who are trial building the few new mineral wagons that have escaped captivity have discovered that the spacing between the solebars on the diagram 46 wagon is a bit tight. Those wishing to use compensated or sprung w-irons should be aware that the S4 Society pattern will fit but some other brands, like D&S and MJT and notably Bill Bedford's w-irons with springs don't.

The solution is simple and quick - just scrape a few 10ths of a mm off the insides of both solebars in the vicinity of the w-irons with a sharp craft knife. It may not be necessary for the fixed w-iron at the opening door end. Check with your brand of w-iron. Take care not to put the tip of the knife blade through the floor as I did with one of our RYP wagons.

The diagram 22 wagon is OK and although the Bill Bedford sprung units are a tight fit they will go in without modification.

Tony
jasp
Posts: 627
Joined: Mon Aug 20, 2012 6:40 pm

Re: CR Diagram 46 Underframes (Model ones that is)

Post by jasp »

The solebars on both wagons require to be thinned by approximately 1/2mm each side to use the fixed axle guards with pinpoint axles and bearings.
Jim P
tony brenchley
Posts: 348
Joined: Sun Aug 26, 2012 10:36 am

Re: CR Diagram 46 Underframes (Model ones that is)

Post by tony brenchley »

Bill Bedford sprung w-irons do fit inside the solebars of the diagram 22 wagon but are so tight this affects the springs! I scraped the solebars a little until they slid in easily and they worked OK. I scraped them a little more and D&S rocking w-irons fitted as well. Took much less time to do than typing this!
Tony B
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