Sticky S&W 4006 firing pin

hatman1793

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Was putting together my 4006 the other day after cleaning the barrel. Got it all together and dry fired a couple times. Heard a distinctive double click. The second click was the firing pin going forward and then back.
Probably the firing pin channel is gummed up or the FP spring is old. Want to fix it but cannot figure how to take the safety out to get to the channel.
Anybody out there know the sequence to dissassemble the rotating amib-safety? Thanks.....
 
I found this info at this link:http://www.thehighroad.org/archive/index.php/t-3532.html I haven't had mine apart in a few years but this sounds right from what I can remember.

The Slide
Look at the right hand safety and you'll see in the center a tiny hole. Insert a punch and depress the plunger. While the plunger is depressed, push the safety forward towards the muzzle. Withdraw the plunger and slide the right hand side of the safety off.

Now, flip the slide upside down. You'll see two plungers. The one on the right hand side (muzzle away) needs to be depressed. While it's depressed, push in on the firing pin to relieve pressure on the safety barrel (or safety shaft or body of the safety). This allows you to slide the left hand side of the safety out of the left side of the gun.

Pushing down on the same plunger allows you to remove the firing pin and the firing pin spring. You should have a disassembly block (2x4 with a 3/4" hole drilled into it). Locate the extractor pin and place the slide such that the extractor pin is directly over the hole in the disassembly block. Punch out the pin from the bottom of the slide. You can withdraw the extractor and extractor spring. This completes the disassembly of the slide. You don't want to remove the other two plungers because to do so requires removal of the rear sight (and resighting the gun afterwards).

Reassembly
Insert firing pin spring & firing pin into the firing pin channel. You need to depress the firing pin block to do so. When properly installed, the firing pin should clear the tunnel where the safety shaft is. Next, depress the firing pin to insert the safety. You have to finesse it in. The safety will come to a rest and the plunger on the safety has to be depressed before you can push it all the way in. Push on the firing pin safety plunger so as to release the firing pin from its forward position. It should "disappear" from the firing pin hole. Now, insert the right hand safety. Push it until it comes to a stop against the plunger. Depress the plunger and it should slip right in. This completes the reassembly of the slide.
 
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