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dcc points


moorlander

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Hi

Nothing to do with DCC really!

But 50% of derailing is due to the point not being laid flat both along its length and across. Double check all is correct. I use the edge of 12 inch steel rule placed along the rail top and any gaps seen between rule edge and rail top indicate a low spot which needs a shim of packing (card etc) to raise the low spot. 

The remaining 50% is caused by incorrectly set Back to Back wheel settings which in OO should be 14.4mm +/- 0.05mm. You can use a special gauge sold by good model shops or obtain them on line from places like 'The Double O Gauge Association' ordering their Intermediate Standard B2B gauge. Or just use a vernier calliper to measure the distance between the inside faces of the two wheels on the one axle.  Also check and remove any build up of 'crud' from the wheel rims. 

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