I On Tue, 30 Oct 2012 17:52:02 -0700, Paul Drahn
wrote:

On 10/30/2012 3:13 PM, Jerry Tee wrote:
I have an old PorterCable 7514 half inch drill,I've been trying to
replace the chuck the usual way,no good. I went to the porter cable
site not old manuals.My question is,is there a special way of taking
out the chuck on older PorterCable drills?
What is the "usual way"? Many chucks have a left handed screw holding
them to the shaft.

Paul
I did that already,I also took a n Allen wrench tighten it with the
chuck, gave a few hammes shot nothing doing. I even used liquid wrench
to loosen up the threads, nohelp.