I’ve been looking for a good video for years man you are the best on here

Wow! I had a 23 gauge pin nailer that wouldn't retract and this video helped me fix it! It saved me $100 in replacing it! Thanks a lot!

Thank you for taking the time to make this video. Just diagnosed/repaired second-hand Bostitch nailer just in time! Couldn't have done it without your help.

Thanks for the vid. Had a brand new Ridgid 16 p nailer, was sticking and wouldn't reset. Only used to build a deck and a shed. Didn't need to replace any o rings but took apart, wiped down (maybe had too much oil) reassembled and worked. Tip when reassembling make sure to push the piston head all the way down the cylinder otherwise air can't recon press it and will just leak. Works like a charm now.

Thank you for taking time to make this video. Now I know why my nailer is malfunctioning.

Master Tool Repair. Thanks for the quick response. Good info. The ones we work with are RN 46 I believe. 👍

Will have to send this link to my son-in-law, he has started roofing for a living and I know he's gone through a couple of nailers already.

Great video, now I know how to rebuild it correctly when it goes out again.

Great video - I appreciate that you really know this subject and you share the names of the nailer parts as you touch or take off. Well done thanks

Thank you for the video....worked my roofing nailer and it works great.

first thank you for the video, good voice good speed good job.

Very informative, thank you! Much appreciated.

Literally everyone u said happened to my nailer thanks so much

Thanks for taking the time to make this tutorial.

Great vid Im the tool tech for a big box store that has a rental department they started a program 3yrs ago where we will fix ur stuff LOL. Im good on small engines some electrical but nailers I usually send off cause now I have to fix store and customer stuff with no parts on hand and no time to guess ,this really helps , but the ones i usually do are always trigger valves.

Good vid....thanks for great talk thru the details of how simple these weapons I mean tools really are!

great video by the way.. I have a Bostitch 18 gauge bread maker model number sb-1850bn.. when I go to use it or does nothing but burst of air out of the exhaust port openings. opened it up but o rings look fine. are they bad or can u make a video/explain why it's not firing. note: as friend used it with a 16g set of nails not sure if that damaged something but does not seem to have a mail lodged.. thanks nick

Thanks so much for your help.

Nice video and information i need your help i have a senco 600 the problem it has is on the top leaks air comtinously.

Mine had air leak out top exhaust and nothing happens when pull trigger. I replaced the cylinder seal after unjamming nails and it has worked great for months.

The valve piston gets stuck in the cap complete on my makita an902 after 20-30 nails, could it be the compression spring needing replacement?

Bostitch 15g finishing guns have a built in air-blower button. Many of those blowers leak badly even when brand new. Have you ever had to deal with this? I read somewhere that a factory defect installed a bunch of damaged O-rings.

Wanted to know if you were able to get the nail gun in the video working? I have the same gun that I am working on now. I am satisfied I have a leaking head valve seal. I did some research and found the head valve has been changed from a single o-ring to a double o-ring style. I ordered the updated head valve and a new cap. Was not sure if the new style head valve would work in the original cap. Just curious if you might have come across this.

Great video; it was really informative!

You just helped me! Thank you, thank you!

thank u for this video. from watching this video over n over when i had an issue, and taking the guns apart. i was able to learn how to repair hitachi guns and start making money doing it. you sir are great ! lol

Thanks man....I just scored a now classic Senco SFNII for 8 bucks....she shoots but has that upper blow by so I need to reseal her....great little refresher for me since I haven't seen the inside of a nailer for 23 years since I made the transition from pro to weekend warrior....

Great video and informative, although I’m having a feed problem and the spring is there for the nail pawl

Will this all apply to framing nail guns? I have a Max SN883RH3 SUPERFRAMER. Just hisses when I pullnthe trigger. Probably the best gun I've used over ghetto last 15 years till now, Internet seems void of specifics on repairing this gun.

Hello I have DeWalt d51850 the Piston isn't retract. You mentioned that may be Piston seal. How many seals the Piston have? Thanks

Hey good video. I always have issue with nail not loading back up after being fired. You mentioned the feeder piston O ring. Are these 2 orings in the bostitch rebuild kit ? RN 46 ?

Thanks, saved me sometime taking stuff apart I didn't need to. My 12 year old Hitachi narrow crown stapler was just blasting air out of the exhaust when air is connected. The whole plastic top valve is crumbling apart like its made of cheddar cheese. Seems like in an environment where it's constantly exposed to petroleum oil they would make it out of a plastic that doesn't deteriorate when exposed to petroleum oil 🙄

What an excellent video! I have on problem not mentioned though. Since I bought it new my hitachi construction stapler sinks the nails half way down until I shoot it 100 or more times then it works like a champion... It's not my air hose or compressor...I've never fixed a nail gun, had dozens of them, but after seeing this video I see no need to buy a new gun every time my old one breaks!

many thanks, fixed my nailer with this video. And kick ass info in this vid.

Thanks for posting, learnt a lot. Any idea why I can't find any sort of rebuild kit or o-ring kit for a Ridgid framing nailer??

I have boach n12 coil roofing nail gun, air comes out of the nail feeder. Which kit do I need, the trigger o-ring or piston o-ring kit?

Any suggestions on why Grip Rite GRTCS250 coil siding nailer fires first nail but blade stays forward and next nail isn’t picked up. Gun is essentially new but I’m not the first owner. Any suggestions very welcome

I found the head valve in my Bostitch N75C basically broken from drying out i suspect. Just ordered a new one. I swear, if you bought every part in these guns, you'd spend a fortune. Thanks

Great video: I own a brand new DeWalt model DW45RN roofing coil nailer. Currently it's working but it cycles very slow. I shoot a nail, then I have to wait about 5 seconds for it to retract before I can shoot the next nail. Air pressure is set to 100 psi and I use 3in1 oil as the lubricant. There's no water in the system; what could be the problem? Thanks

I have two roofing nr46's that were working fine and now it seems the feeder Is not pulling the nails up. One looks like the feeder piston makes the feeder pop out to the side. is there a fix for this ?any help would be greet.looking online all over and can't find a solution.

Is there way to get info on parts for a store brand nailer from OSH Orchard Supply Hardware that went out of business? I really like the fix it. During the meantime I purchased a new Husky roofing nailer from Home Depot. The instruction on that one seems very strange and dangerous. Will try it in the next few days.

hi , i need an o-ring kit for a senco finishpro 35. i went to your website and found the kit unavailable from you ?

I have a hitachi coil siding gun and have air leaking out of the trigger and it won't fire. After watching your video I am assuming it is the trigger valve? Need a kit for that and how hard is it to repair this issue. Thanks in advance

I just did a complete O ring and trigger kit on a dewalt D51844 type 1 and I did not fix my problem. (Air leaking heavily out the nose) Any ideas what I could try? Thank you

good video !! thanks. use a silicone grease for reassembly

I have a Campbell Hausfeld air framing nailer. Problem is when it shoots it inverts the nail head only just into the wood. Unsure where to start diagnosing. Advice?

I have an SX 32 bostich air stapler I have replaced the trigger valve, and installed an O ring kit. Something is still wrong. As soon as I hook up the air hose the gun fires a staple. The piston does not retract, I have to remove the air hose to get the piston to retract. It fires without pressing the trigger or safety. Help

Thanks! Awesome info here!

Thanks for the video. I have a bostitch small nailer that I got at Christmas. I have only used it a dozen of times. It works great but I have a constant leaking of air out of the tip where the nail comes out. I use oil every time I use it. Maybe more oil?? Hard to believe I would need to replace an o ring this early in the game. Btw your voice sounds exactly like James Hetfield from Metallica.... lol

Thank you for your response and it did work i appreciate it bro

Hey great video. My identical nailer as in this vid, leaking like crazy from trigger valve. After replacing the valve, the nailer no longer leaks, but will not shoot. It seems as though the trigger is not making contact with the valve. Also my piston firing ring did slide right down the cylinder and I pushed it back, it seems to be holding now. Still won't fire. Im wondering If I'm missing a part around the trigger?

Now I know what to fix and how!!!!

Hi, I have a FN250SB nail gun with a nail wedged so the slide won't move. Several nails had gotten wedged in there and I got most of them out, but of course the last one broke off. Do you happen to have a video that shows how to take the magazine apart so I can get the broke piece of nail out.

I have a Central Pneumatic roofing nail gun, 93253. I watched the clip and took it apart. There are two green bumper parts that deteriorated. One is a dampener at the very back, the other is a external dampener on the outside of the piston cylinder. I can not find a place to buy replacement parts. Major spare part suppliers do not list Central Pneumatic, neither Harbor Freight. Any idea? I believe that this brand uses parts that are designed for another brand. 2022-11-22

I have an older Bostitch 16 gauge staple gun, likely from about 2005. It is a Bostitch 650S4 model, lightly used and in good physical shape. I stopped working and had an exhaust cap leak at the head. Seal kits from Bostitch are no longer available, but I was able to find an aftermarket kit containing just the o-rings online. I took the unit apart, cleaned the unit, replaced 7 o-rings and assembled everything again. Plugged in an air hose, and the unit is working again, but now I have a leak at the bottom of the cast frame where the “hammer” comes through the bottom of the cast orange housing. It’s basically right near the top of the staple, close to the hammer (that strikes the staple. Basically a steady stream of air coming through this area. Not sure what has failed here. Any thoughts on what causes this? Thanks.

Thanks for the tips. It's a rn 46 in nearly new condition. I'm now thinking it's possibly grime. I'll clean it out first.(where is the best place to get the o rings?)

I have the bostitch rn46 and it skip nails and sometimes the feeder pops out plz help me on more details

Thanks for responding, the air comes out of the trigger only when i press it to nail , and no nail comes out ,it feels like if the trigger needs more back space

my roofing gun fires 2 nails, sometimes, 3 nails. What should i replace? thnx

''Great Video'' buddy, keep them coming. I have an issue where my gun doesn't fire as in your explained video. [How do I find out the (sin number) for ordering parts? And where does ones-self order parts for there air gun, and have it shipped personally to there home My gun is a Bostitch the side where loading coils drop away from the gun. I'm not sure where to find ordering info needed, if you don't have the box or packaging book or etc... Thanks is advice.

Bought a used bostich framing nailer and it works great. Only problem is will shoot a 2 3/8 nail fine but won't shoot a 3 1/8th. Seems the nails won't go into the tube to fire. Is there an adjustment to allow a longer nail.

thank you very much from Canada

i have a rn46-1 but this gun does misfire. .how to fix that problem?

You are my hero.

I have air leaking heavily through the end where the nail comes out.its a senco roof pro 445xp.what do you suggest I do?the nail gun is almost new.sometimes after around 10 minutes it will stop doing it but it more often does leak air through the front but it still shoots the nail out it just makes my compressor almost constantly run

I picked up this lube with antifreeze and water emulsifier . Best thing I did for my Bostitch . (antifreeze cuz it's cold up here )

I just found out that my brand new porter cable BN138 also is not working. this does nothing when pulling the trigger.

Great video

Well done!

Very helpful video sir! I have a question...im thinking of buying a hitachi roofing nailer for myself because thats what i use at work all the time and what most people around me say is the best. But, Is there really a significant difference from a $300 nail gun and a $150 nail gun? The answer is most likely obvious but i was hoping you could elaborate on that...and also, if you could mention your favorite nailer brand.

I have a porter cable used rn175A and air womt stop flowing out tgw barrel , how do i stop it

I have a senco pro 35 brad nailer that the angle of the brad is off in regard to the opening . The driver pushes the brad into the body of the gun . Notheing looks out of line but it jams every shot . ???

Great video. I have a little max CN450G coil gun - I have pulled the top off- the piston barely moves in the cylinder- the top o ring was stuck and stretched - I tried what you did in the video (hammer tap) to get the cylinder out but it didn't work. When I push the safety and pull the trigger it give a pssssh and thats it. Any thoughts?

Just got a used roofing nailer of someone, went to use it the same day and it worked for half a bundle of shingles, but it suddenly just stopped pushing nails in. A squeeze of the trigger would let air out, but there would be no nail shooting out. Checking if the coil was kinked but that wasn't the problem. Still not sure what's wrong it it, didn't look at it too much as we had other nailer so I just switched and went on with the day. Any chance you know what happened with it? It doesn't leak air anywhere. Maybe it's just not pulling the coil up to place the next nail in the barrel?

I know I might not get an answer since your original post is over 7 years old but I still tried to post a question earlier. However, I think it failed. So, here it is again. I have a Craftsman 351-18306 crown staple air gun. It is dry firing. The piston / hammer only bounces off the lower stop and does not retract back up so the next staple is trapped. My air pressure is only 40 lbs. I couldn't find a repair kit but, I found an O-ring that seals the piston better. But, that didn't fix the problem. Do you have any other part / fix recommendation? I new at using air tools so don't clearly understand how the air is supposed to change from driving the piston down to then pull the piston back up. I'd really appreciate some explanation on this and some suggestions on what other part or parts might cause the dry fire problem. The piston / hammer assembly does move back up pretty easily when I manually pushed up. Now it has slightly more resistance after I put a new O-ring on the piston. But, something seems to cause the air to not return the piston back to the up position. I know air is supposed to return the piston to the top but, it just seems to me that a spring piston return to retract the piston / hammer back up might have been more reliable than relying on an air valve to change the air flow to push the piston back up.

Great video. liked and subbed

Hi bro nice video ,my question is i have the same nailer and my problem is that when i want to nail a shingle i only mark the shingle with the pistons head then i open the case where the coil nails go i push it and then it will work but if i don't do this it won't work i have no air leaks nor so , i would appreciate it if u can help me ,thanks

Thsnks s lot ! Appreciate the instructional ! Wulf

nice video, thanks

I have a Duo-fast RS1748B and it is bleeding air out the exhaust port. I have replaced all the o rings in the gun and it still leaks the same way. I know it's an old gun but it hasn't really been used that much so I thought the o rings would fix it. got any ideas?

I have a old Haubold staple gun it sounds like it fires when trigger is pulled but piston does not retract what would cause this ?And can I get parts for it if so where ?

What impresses me …this video is a little over 6 years old (10/18/20) and you are still responding to questions.

Hello I have a tacwise air coil gun and when I plug it in to my air line it fires straight away with out the trigger pressed in or the safety bar pushed up. Any ideas thanks mark

Mine doesn't leak from the trigger or the top but when i push it on to the wood and fire it I here air

I have a newly used senco roofing nailer that blows air out of the front where the nails shoot out of.a lot of air.what seals do I need to order for it? Thanks

hi I have a duo fast siding nail gun that it has a leak on the driver nose already replaced all the seals but still doing the same thing any idea if you can help me thank you

I have a bostitch n80cb that fires a nail whenever I put air to it. I have changed the trigger and it still does it. I was wondering if you had any tips? great video by the way.

Harbor freight 2-1 stapler just puffs was working fine then just change any suggestions?

Hey my hitachi shingle nailer is like not decompressing fast enough and I can't shoot twice back to back ..what would cause this

Hello there everyone I have a Bostitch N66c siding Nail gun there is no leaking air but once I put air it only works the first time, I notice that only when I press the trigger valve it does have an air leak on the trigger, so I order the kit trigger valve and still didn't work, so I order the whole o ring kit and the same thing not working. I actually don't know what else to look for. any help on this. thank you

My Dewalt 15 gauge will only fire with the trigger removed leaving the trigger Valve in and hitting the button. Any suggestions? Almost like there's not enough trigger travel to hit the valve button.

My Bostich Framing nail gun stopped working, the piston doesn't retract. So, I purchased a rebuild kit and rebuilt the nail gun, and still does not retract the piston. What did I do wrong? ?

I have a fairly old (Purchased in 1991.) Bostitch N60FN that is not firing properly. When I pull the trigger it sounds like a short burst of air is releasing from the trigger area and that's it. Nothing else happens. I've replaced the trigger valve with a brand new lubricated kit. No change. The cavity where the trigger valve goes into seems very clean too. This finish nailer has sat idle for at least four years or more so I'm sure I have some brittle o-rings or seals somewhere. Any thoughts?

I replaced trigger valve and it still blows air there but fires?

You mentioned about skipping nails but didn't clarify the problem or solution. I suppose it's the o rings in the feeder or is it the the rings for the drive pin?

Just rebuilt my SENCO Prodriver 35 with a complete overhaul OEM kit to fix a "driver fails to return" after fire problem. No joy. Is there a return air port that might be clogged or a particular O-ring I should be looking at? (Nice vid, BTW)

What does the parts look like on the driver on a Bostitch shingle nailer

Have 2 Hitachi nv45ab2 guns both with nail skipping, I cleaned the feeder mechanism but haven't disassembled the feeder piston. I did notice when a nail is skipped the driver is still deployed and not fully retracted. I'm not sure if the reason the nail skipping is because the driver isn't fully retracted or the reason the driver isn't fully retracted due to the nail stopping the driver from fully retracting. Have you seen this before, I will be ordering an overhaul hit for this. The second gun does the same however when turning the gun upside down I can hear the driver slide down to the other end Good video, was hoping to hear any ideas on nail skipping.

my n64c leaves the nail up about a 1/4" every time? psi is good other nailers work fine

i have a dewalt d51321 coil roofing nailer. it will drive the first nail but won't push the next nail into the chamber. Help!