Nailer Hung Up


  #1  
Old 12-07-23, 09:53 AM
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Nailer Hung Up

My Porter Cable FN250A 16 gauge finish nailer driver pin does not fully retract.

I have lubricated with no success.



What is the problem with this? How do I repair?
 

Last edited by Wirepuller38; 12-07-23 at 11:54 AM.
  #2  
Old 12-07-23, 10:45 AM
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I got mine working again by giving it a thorough cleaning. Since it didn't work and was destined to be replaced I took it apart, cleaned and reassembled and it worked again. Maybe you'll get lucky too. But, while it's apart you'll also be able to see if there is anything inside broken that needs to be replaced.
 
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Old 12-07-23, 11:41 AM
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Thank you, Dane. I will give it a shot.
 
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Old 12-07-23, 11:46 AM
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The few times that any of my nail guns hang up like that I've taken it apart and found 1 unseen nail hanging up the works. Remove that nail and it's back to working like it should.
 
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Old 12-07-23, 11:59 AM
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If you are manually shoving it back up and it fires 1 nail but then stays stuck down, you probably need the overhaul kit.
 
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Old 12-08-23, 08:36 AM
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I opened the top end and found a mangled piston bumper. I have a replacement on order.
 
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Old 12-12-23, 08:53 AM
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Replaced the piston bumper. After a few stops and starts in assembly, it is now re-assembled and working. Thanks for you guys help.
 
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Old 12-12-23, 09:17 AM
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Good job. It's usually not that easy to figure out which seal is bad. But mangled was a good clue. 👍
 
 

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