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1. Crossing flangeway gauges for EM and 00-SF

... the 3-point gauge, the short side should be on the curved stock rail (inner rail of a curve). 5. Install the check rails, gauging them from the vee and from the closure rails using the check gauge tools. This is the most critical procedure in the whole assembly. Up to this point most errors can be fudged with a bit of filing, but great care should be taken when fitting check rails. Here's a diagram showing the check gauge tool being used to set a check rail: 00_sf_bf_check_tool.png The blue rectangles represent the rails as follows: v= vee nose of crossing w= wing rail (clear of the tool) c= check rail being gauged from the vee r= running rail (stock rail) (clear of the tool) f= flat section filed or machined to clear the top of the vee. regards, Martin. posted: 26 Mar 2008 22:39 from: Brian Lewis...or, seeing as getting the relationship between the vee and the wing rail is really the ...

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2. Track Gauges

... listed in the G0G standards. The critical dimensions are: Track gauge: 31.2mm min. Check gauge: 30.0mm min. Crossing (frog) flangeway: 1.2mm nom. Check span: 28.8mm max. The most important gauge tool is the check gauge. It sets the position of the check rail from the crossing nose. Here's what the 00-SF check gauge tool looks like: 00sf_check_gauge1.jpg 00sf_check_gauge2.jpg Here's the drawing for it (Brian Tulley amended some of the dimensions for the final production, the critical dimensions are arrowed): 00_sf_bf_check_tool.png The blue rectangles represent the rails as follows: v= vee nose of crossing w= wing rail (clear of the tool) c= check rail being gauged from the vee r= running rail (stock rail) (clear of the tool) f= flat section filed or machined to clear the top of the vee. To convert this for 0-SF, 0-MF, GOG-F (all use the same 30.0mm check gauge dimension): Change the 15.20/15.23 dimension X to 30.00/ ...

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