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Porter Cable roofing nailer model are in 175 loses nails out the nose instead of shooting them often what's wrong with it

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  • Air Tools & ... Master
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Usually, on any roofing nailer, the only nail to just drop out of the nose is the last nail of the coil. The nails are held together with two strips of wire welded to each unit. For a nail to just drop out of the nose, the two strips of wire would have to be broken or not totally welded to the nail. Poorly constructed nails will have bad welding or weak or broken wire within the roll. Carefully unwind a coil of nails and check for brittle wire or loose nails. If coils appear to be well constructed, check the condition of the tip of the driver. The driver should have a squared end to cleanly shear the two strips of wire. If the driver is rounded, the two wires will be pulled till they break off affecting the next two or three nails on the coil. Easy to check. Fire one nail, then open latch and examine the next nail to be fired. The head should be aligned with the other nails. If the head is pulled down out of alignment, the driver is not cleanly cutting the two wires. Good luck

Posted on May 19, 2013

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Posted on Jan 02, 2017

rowdy45176
  • 2176 Answers

SOURCE: looking to buy a manual for a porter cable nail

Go to Dewaltservicenet.com and type in your model number the manual is 13 pages long. If I have helped you with your request would you please rate this response accordingly. Thank you

Posted on Oct 10, 2009

  • 21 Answers

SOURCE: Why does my porter cable nail gun FN250B shoot

check the magazine bolts are tight and that the magazine is snug aginst the nose. also be sure you are using 16 gage brads and not 18 gage

Posted on Feb 14, 2010

  • 885 Answers

SOURCE: I have a Porter Cable

You have some blown o-rings inside the head that won't keep air where it's needed to return the driver back to the top. Porter Cable used to make a driver maintenance kit (PN60011) but it's no longer available through them. You may be able to find it on a site like eBay. If not you'll have to order each o-ring seperately from a Porter Cable/Dewalt service center.

Posted on Sep 17, 2010

  • 1383 Answers

SOURCE: my makita an451 roof nailer

Nailers that use strips of nails (one nail directly behind the other) will sometimes drive two nails at once and is caused by damage to the driver. The nails are so close together that the driver will hit the first and part of the second nail head. Coil nailers, as your an451, use nails seperated by welded wire making it very difficult the the driver to hit the second nail. Usually when a coil nailer shoots two nails, it is acutally the trigger valve that acutates twice (two very rapid fires). Two very rapid fires is caused by faulty trigger valve. I have seen a roofing coil nailer fire one nail and a second nail drops out of the gun. Caused by weak / malfunction of nail feeder or wire used to weld nails together is too thick.

Posted on Sep 27, 2011

airnailer
  • 109 Answers

SOURCE: Hitachi roofing nailer shoots every other nail & doesn't sink the nails it shoots

i think you have two different problems , replace the feeder spring, and replace the oring on the driver piston. also make sure that the coil of nails is perfectly round if they are dropped or squeezed tool will not work right

Posted on Oct 04, 2012

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1 Answer

Porter cable repair


Try a set of Orings from the Oringstore online,,,,lots of times the o rings that seal the cylinder to the nailer body decompose

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If no air is leaking from gun, miss-fire is usually caused by worn or too tight piston oring or lack of lubrication. Easy test. Disconnect airline, remove nails, point nose of gun up then down. Driver should stay in uppermost position. If driver moves up then down within gun replace piston oring and retest. Set pressure to about 100psi. Good luck with repair.

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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.

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1 Answer

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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

When firing nailer first nail shoots good but next nails head will get stuck between the push rod chamber. push doesnt seem to return fully top when nail is cycled.


Try oiling the tool first. Remove the nails, squirt a decent amount of air tool oil in the stem where the air hose coupler connects, and fire the tool a dozen times or so. Then put in the nails and test. If it still hangs up then it will need the o-rings replaced.

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1 Answer

My RN 175 roofing nailer (porter cable) fires like a machine gun. I cleaned the trigger valve assembly and replaced the o-ring at top of the asembly. Still fires in high repetition.


With most nailers there is a safety device that has to be depressed as you press the gun against the work that is being nailed. This safety device might be damaged or jammed in the firing position allowing the gun to act like an automatic.

Mar 14, 2011 | Porter Cable RN175 Roofing Coil Nailer

1 Answer

Why does my porter cable nail gun FN250B shoot


check the magazine bolts are tight and that the magazine is snug aginst the nose. also be sure you are using 16 gage brads and not 18 gage

Jan 23, 2010 | Porter Cable Air Tools & Compressors

1 Answer

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Your gun is having a return problem, more than likely, the diphram on the top the of the gun leaking. You should be able to find a top end kit where you get your guns serviced/purchased

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1 Answer

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Could be a couple things, first are you using the right nails in the gun e.g. collation and degree. Second do the nails move freely in the magazine and how is the pusher spring on the nail does it have enough pressure. Then I would unplug from air remove all the nails andjust tap the nose on a piece of wood and does the driver drop? If so the piston Oring is worn and needs replaced, but if you do that I would recommend replacing all the rubber. Let me know and I would need the exact model number to come up with parts.

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1 Answer

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Lee

Remove the head, take out the blade and make sure its not bent or the tip broke off. Also while out insert the blade into the nose and see if there is any foreign object blocking the blade travel.

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