Help please adjusting the neck on a strat.

My mid 90s strat is a lovely guitar and has a great playing action even down low on the board. I wouldn't consider selling or swapping it for ANY instrument , honestly (ok maybe for a vintage series 54) but the neck needs adjusting and I'm not really looking forward to adjusting the truss rod. Does any one know what the settings are for string heights and how to actually tune the truss rod.
Thanks.

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I don't know if this is what you after :

http://www.guitartricks.com/lesson.php?input=8670

but thought Id put it up anyway !