To pull the lock out, you will have to drill a small access hole in the
housing to depress the spring retainer.  Drill a 3/16" hole in line with the
top of the keyway 1/2 inch back from the edge of the casting.  drill
carefully, as you only want to go through the first layer.  If you examine
the new lock, you'll see the 1/8" wide leaf spring that engages in a slot in
the lock housing.  After you drill the hole, depress the spring and slide
the lock out.  Easy to do.
Steve Sandlin
Steve's Lock Shoppe
http://www.steveslockshop.com

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