Question about RTO PasLode 900420 Impulse Framing Nailer

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I changed the gas cylinder and now it won't fire any nails.

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Check the cap to make sure properly seated on top of the cylinder and then reinsert making sure the cap lines up with the spout in the head. Check for expiration date on the bottom of the cylinder. and lastly take the cylinder and using a block of wood depress the vavle a couple times to make sure dispenses gas. If you need more help let me know

Posted on Oct 03, 2010


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1 Answer

What causes the nail gun not to fire

Your question isn't specific enough. Multiple things need to work together to fire a gas fired nail gun;
First the obvious user faults;
Low battery
Low gas
Nail guide jam

Not so obvious;
Broken/worn return springs (nail guide and firing bolt)
Faulty micro switches
Bent or impacted internal mechanism
Fan fault
Ignition or spark fault
Dirty or damaged ignition chamber (just like a car piston, cylinder and rings)
Faulty micro controller and ignition circuitry

Apr 19, 2015 | Tools & Hardware - Others

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Have a nu power gas nail gun fully charged battery full gas cylinder but will not fire nail

Did you take the nails out a check the safety , where the nail comes out ? Sounds like a stick or stuck safety switch . Good Luck !!!!!!!!

Nov 15, 2014 | Air Tools & Compressors

1 Answer

Senco nailer won't fire nails, but the firing pin dents the wood almost 1/4 inch.

Hi Jes,

Are the nails moving freely in the magazine if you pull the mag spring back? If so, then the driver blade is not returning to top dead centre - leaving enough of the blade to stop the next nail moving into the nose. This could be caused by a slight back pressure in the cylinder so, check the exhaust is clean and free of any swarf. Or check the O Ring on the driver blade, even though you've just replaced them....

Mar 01, 2013 | Senco & Frame Pro 601 Framing Nailer

1 Answer

The gun won't work right

As a safety precaution, nailers have incorporated a safety foot that will prevent the gun from firing unless you push down hard. Some guns also have a system where the gun will not fire at all if there are no nails in the gun. To dry fire this type of gun you must pull back the pusher or open the side door. If nails do not feed properly, check for wrong nails, bent rails or weak pusher spring. If all is good with rails and pusher, suspect that the driver/piston is not at top of cylinder and lower part of driver blade is preventing nails from advancing. Remove airline and push the driver to top and retest. If driver is slipping down the cylinder under its own weight, replace oring. Good luck

Nov 10, 2012 | Tools & Hardware - Others

1 Answer

My ridgid r213bna nail gun won't fire a nail, but has good pressure & no jam...

If a gun is firing and nails are not being driven into the work it's because of one of two problems. The nails aren't feeding fully under the driver or the driver isn't fully retracting each time the gun is activated. Is looks like you've eliminated a feed problem so you are going to have to take the gun apart to find out why air is not being held in the bottom of the head long enough to push the driver back up the cylinder. Go to and bring up your model so you can follow along. Remove the four screws holding the head cap on. The things that can cause your problem are: the piston seal & o-rnig are damaged, the cylinder is badly scored, the o-ring & cylinder ring on the bottom half ot the cylinder are damaged or out of place, or the driver guide under the bumper is broke or missing. If it turns out internal parts are damaged or missing, I highly recommend the overhaul kit to replace all the 'soft' parts inside the gun as long as you have it apart.

Jul 22, 2012 | Nailers Ridgid Finish Brad Nailer R213bna...

1 Answer

I'm trying to figure out why my PC FN250A won't fire nails. I don't see one jammed. What else can I try?

If the driver is not returning to top of cylinder, the nails will not feed into position. Remove nails from the gun and Insert thin tool into nose to verify that the driver is all the way up. If the driver is already at the top of the cylinder, then nails are not feeding correctly (check for debris in rails or for proper nails). If the driver was not all the way up, check for bent driver blade, loose or too tight piston ring or restriction in the headvalve (upper bumper cracked). Good luck

Jan 18, 2012 | Tools & Hardware - Others

1 Answer

Gun fires, leaves good indentation, no nail. WCE working properly, took head apart to look for jam but nothing in there and am using compatible nails. Also oiled it but no luck. Was working fine doing...

Remove nails and use thin tool to push driver all the way up to top of cylinder. If the gun fires one nail then skips, the driver is not returning to top of cylinder. If no nails fire, then nails are not feeding into proper position. Driver must return to top to allow nails to feed into position. Most common problems are bent driver, worn piston oring and bad batch of nails(head too large). Good luck

Jan 14, 2011 | Campbell Hausfeld 2-in 18 Gauge Brad...

1 Answer

Quit firing nails motor comes on but nothing happens when pulling trigger

I am assuming that you have changed the gas cylinder. Make sure you have the exact correct cylinder, because there are some that look like they fit, but don't quite seal. This unit requires battery charged for ignition and induction fan. And it requires fuel to drive the nail,.

Oct 16, 2010 | RTO PasLode 900420 Impulse Framing Nailer

1 Answer

I changed the gas cylinder in my paslode framing nailer and now it won't fire the nails at all. The battery is fully charged and the whirring sound and smell of gas is evidenced but no nails are fired.

Make sure you have the correct gas cylinder. There are more than one type of cylinders for these nailers. If it is not correct it won't seat and gas will leak. Whiring sound is normal, fan mixing oxygen. Make sure "O" ring is in place under the gas cylinder.

Oct 01, 2010 | RTO PasLode 900420 Impulse Framing Nailer

2 Answers

The firing pin in my paslode gas framer keeps getting stuck after firing one nail, i cleaned the **** out of it and changed the nails and the gas !!!! any pointers ????

There are a few possibilities for your problem.
1. Check the upper and mid oring (if applicable) for damage. If damaged or worn then the chamber will not seal and the pin will not retract.
2. The 4 finger valve located on the cylinder must be SPOTLESS, i change the valve plate on every service.
3. I assume you removed the piston and cleaned the bottom of the cylinder and cleaned the rings on the piston.

check these 3 items and if it does not work follow up and i will do my best to help

Oct 27, 2009 | Tools & Hardware - Others

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