Reply To: Ruler Guides on Master Pages

OK this is easy.

With your document open go to FILE > DOCUMENT SETUP and enter the bleed setting you want there. This will create the guides you want.
The guides will show in Red in the normal view.

Got to VIEW > SCREEN MODE and you can set Normal, Bleed etc, try them and see which you like.

You can also set this in the NEW DOCUMENT dialogue box (scroll down) and you will see it.
This also sets the default bleed for exporting to PDF.