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Porter cable finish nailer won't work. Not jammed with a nail. Seems piston inside not moving up and down, like stuck.

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  • tennboy99 Oct 01, 2009

    Porter Cable Model DA250B

  • Gerry Brewer
    Gerry Brewer May 11, 2010

    What model nailer is it?

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On the front nosepiece, unlatch the nose cover and see if you can push or pull on the driver pin. If you can push it into the housing all the way and feel the resistance from the driver piston it is not your driver. You may find that you can pull the driver but it will not go into the housing all the way. In this case you have a broken driver and will need to replace it. Note the driver pin should not lean sideways at all when you are pushing it into the housing. It sounds to me like a driver problem. Remove the four backhead screws and take the head off, be carefull not to damage the gasket. Remove the press ring (looks like a round cage) Then you can remove the cylinder. If it is the problem I think it is you will see the driver piston cocked sideways in the cylinder and a broken driver pin sitting at the bottem of the housing. You will have to replace the driver and the cylinder. along with any seals in this assembly. If you have any questions please post and I will try to answer.

Posted on Oct 01, 2009

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I have a porter cable roofing nailer model # RN175 that does not advance the nails everytime what causes this?


Some causes, in order of probability:
Roofing nailers get a lot of tar build up on them, especially around the nose safety and nail feed pawl area. Cleaning off this buildup will usually take care of most problems with roofing nailers.
On the side of the gun away from the side you load the nails on there is a small cylinder with a piston inside that attaches to the feeder pawl. If air isn't getting to the piston or the piston's o-ring or spring is damaged, it won't cycle properly to advance the nails.
If the driver doesn't retract fully, the next nail won't be able to advance properly for the next shot. This can be caused by o-rings in the head that are worn or out of their proper place.

Oct 06, 2012 | Air Tools & Compressors

1 Answer

Jam


I have noticed that some if not all brands are now using metal wire instead of copper to make coils. Metal wire is stiffer and does not bent down out of the path of the driver. If you are using coils welded together with metal wire (some wire looks copper collored, however when tested with magnet is found to be metal), and after firing a few nails, open side door and check if the leading wire is not bending down. Leading wire will not allow the nail the fully move into the path of the driver. Stiff wire will also cause the next nail in line to pull down slightly. When nail is pulled down slightly, it will be out of the path of the driver. The driver will hit the edge of the nail and cause it to flip. The nails can also flip if the feeder is not pushing the nails fully forward due to low pressure or weak spring or springs (some nailers have a spring pushing feed piston others use air). Finally, the feed piston or the body of the nailer where the feed piston is housed could be worn. With feed piston in forward position (normal) and the feeder claw removed, apply outword pressure to feeder with thumb checking for loose fit. The feeder shaft should not be loose nor move from side to side with thumb pressure. If shaft is loose then most likey lower body of gun worn with no repair. Good luck with you nailer.

Sep 16, 2012 | Porter Cable Coil Roofing Nailer

1 Answer

FR350 won't shoot nails


Normally I would say you aren't using enough air pressure because somewhere around 80psi (every tool is different) will not be enough to fully retract the driver. At 110 you are fine so that is not the case. I doubt it is broken because a broken driver will still retract unless it broke near the piston. My guess is it needs the o-rings replaced but you can pull the top head and pull the driver out first to make sure. Parts and breakdowns can be found here as DeWalt owns Porter Cable.

PC FR350 diagram

Aug 19, 2012 | Porter Cable Air Tools & Compressors

1 Answer

Porter-cable plunger extended and will not reload new nail


could be a jammed nail in the nose assembly, try removing all the nails and dry firing. If still the same after making sure nothing stuck in the nose, you probably have an issue with the firing valve or piston.

Dec 31, 2011 | Porter Cable Tools & Hardware - Others

1 Answer

Was trying to reload nails into my FC350A nailer. My hand slipped and the nail pusher slammed forward. Now I can't move the pusher to add more nails. What's wrong...nothing seems broken


Framing guns are a pain in the ****. It's the coil. Sounds like it broke free or jammed. Only solution is to take it apart. Take your time , not to difficult.

Feb 09, 2011 | Porter Cable Factory-Reconditioned...

1 Answer

MY 18GA nailer will fire but it wont fire the nail.


Usual causes:

Driver doesn't move back far enough. Usual cause of this is inadequate lubrication. Load a bunch of air tool oil, say 20 drops and cycle unit repeatedly.

Wrong type nails.

Nails not properly seated in the tray. Check that they can move freely into the slot/path the driver comes down.

Jammed or broken nail in the path. Disassemble and clean out debris.

Broken nail parts up in the area below the piston. Disassemble and clean out debris

Mar 13, 2010 | Porter Cable Cable BN125A Factory -...

1 Answer

Porter Cable FN250B nailer won't nail. It makes a thunk when the trigger is pulled, and air escapes around the trigger. The piston does not move.It does not seem to be related to the saftey.


it sounds like there is a jammed nail in the nose/magazine or possibly a bent or broken driver. UNPLUG the air and remove the top cap carefully and see if the piston is twisted in the cylinder. Let me know and I will try and find you a breakdown for this tool

Nov 02, 2009 | Porter Cable Air Tools & Compressors

1 Answer

Porter Cable 18 ga Brad nailer - BN200 Will not reload


Strip and clean the whole diaphragm and spring arrangement. Also check whether a bad nail hasn't damaged the piston guide and caused it to jam when on return stroke.

Jun 13, 2009 | Porter Cable 18 Gauge 2 " Brad Nailer Kit...

1 Answer

Air nailer won't nail


If youve never done anything to it could be a couple things. Have you kept it oiled (about 6-8 drops) before using and again at lunch if construction type work. Check the nails to make sure they move freely in the magazine Check the nail guage for proper size. and what I would do is fire it till it skips disconnect the air from tool and open the front door (for removing jams) and see the driver position. If it is partially down that would be the problem, check the driver for being bent. Lastly remove all nails and just tap the nose on a piece of wood and again check the driver position, if it moves or falls freely then the tool would have to have new rubber which might be a good idea anyway. Get back to me with the model number and I will research and see if they make an o ring kit.

Jan 20, 2009 | Porter Cable Cable No. FC350A Clipped Head...

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