Question about Stanley Bostitch F21PL Nailer

1 Answer

How do I fix air coming out of the trigger? and can I take it apart and fix it my self. Will it tell me in the mannual? but I don have it.

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Master
  • 2,176 Answers

You can fix yourself if you have a small pin punch. You will need to get a new trigger assembly, the o ring in the valve has split in half. To replace and follow closely, first disconnect air line, take the pin punch and drive out the pin holding the trigger itself and then drive out the pins holding the trigger valve in place. Now and do exactly as written, find a shop rag or cloth put under the trigger valve and hold it. While holding the collar back on the quick disconnect push the air supply onto the fitting and the valve will "pop" out. when replacing the valve use a light coat of grease and align the slots in valve with the holes where the roll pins go, reinsert and you should be ready to go.

Posted on Nov 09, 2010


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

DEWalt clipped head framing nailer. Model DY51825TY1 will not fire

while I have to say I am not a dewalt guy, I can try to point you in the right direction, assuming there are no leaks, then you state the trigger is not engaging , could be three things, one the trip ( safety) or the trigger valve or the trigger its self, if you feel comfortable pound out the pit that holds the trigger in. Just the trigger not the valve, then activate air to the gun, press the trigger, if it fires its the trip or the trigger rocker switch. the trigger can be examined see if its damaged bent or cracked, see if the safety trip is out of adjust, if it doesn't fire it could be the valve spring inside the trigger valve is broken.
don't worry just watch how it comes apart and remember you cant make it worse. it doesn't fire now. anything is an improvement

Aug 24, 2015 | Dewalt Air Tools & Compressors

1 Answer

How do i fix "Trig Stuk" on my Miller welder?

Assuming the Trig Stuk is a message on a display tells me you have a later model welder. Try downloading the manual from Miller. Or if you're adventurous look at the trigger and see if it is stuck, take it apart, clear any debris blocking the trigger contact (preventing it from opening after the trigger is released). Check for cut or twisted wires and see if they are connected at the wire feed motor or has one come off? Is a piece of weld wire touching the motor feed connections?

Sep 03, 2014 | Welding Tools

2 Answers

I have a bostitch n62fn finish nailer that wont fire. when i pull the trigger, air comes out of the trigger assymbly. the gun is not jammed, and is receiving correct air pressure.

this may sound stupid but are you pushing it against the wood when pulling the trigger. it has a safety switch on the front so it will not work just by pulling the trigger.

Nov 12, 2011 | Stanley Bostitch N62fn Finish Nailer Parts...

1 Answer

Craftsman 3/8 inch air rachet model number 875.188020, stuck on as soon as you plug it into the air supply. any ideas on fixing this issue or where to get a diagrahm of this tool.

sounds like the trigger is gooed up from water and **** from the compressor
if you can pull trigger apart and clean it problem probably be resolved

Dec 14, 2010 | Craftsman 3/8" Pro Air Ratchet Rapid...

1 Answer

I purchased the Wagner power tex and loved it, recently it doesn?t spray with the ease as it did when I bought, I haven?t used it a lot only to do fill in?s, seems like it only releases the texture once...

Your sprayer is self powered? you don't use a separate compressor? I have one with a compressor and it has to be taken apart " the gun" everytime or the trigger becomes stiff. If it's self powered, I would say your mixture is too stiff and water and it should be fine..If not and if it's self powered, then your motor may not work properly.

Mar 17, 2010 | Wagner Power Tex Texture Sprayer #0520000

1 Answer

Not shooting

Trigger Valve needs replacing. Part Number is FA205BA1. The valve comes with instructions, its a pretty easy fix. Any BBostitch dealer should be able to get you one.

Mar 11, 2010 | Stanley Bostitch Sb 2IN1 2 In 1 Narrow...

2 Answers

I have a Pulan Pro 25 gas air blower. The rope

hi there the wire sounds like it goes to the chasis of the machine (earth) but it could also go onto the coil but if it comes off the kill switch then it will go onto the chasis earth (metal casing) hope this helps ben

Oct 12, 2009 | Poulan Featherlite Gas Blower, with Low...

1 Answer

Myn60fn is leaking from around the trigger, do I have to take the whole thing apart to replace the o rings or do I just drive out the spring clips?

You will need to remove the trigger before driving out the roll pin. After you remove the trigger and roll pin, place a rag over the trigger, remove your hand from the area, and briefly hook up your air line. (Clean your soiled pants after this part) You will hear a loud pop and the trigger assembly is going to come out quickly. If you are not prepared for this it will scare the **** out of you. Then once you have the trigger assembly out you can push the two retaining pins on the assembly out and remove the inner workings of the trigger. One note of caution. The ring you are trying to replace is a hard half moon looking ring that Bostitch doesn''t sell separately. You may see it in pieces when you take this assembly apart, or you may not. Sometimes it crumbles and comes out of the trigger exhaust. You can try to match up an oring to sit in there, but from experience it is much easier and less costly to just order the whole trigger valve. Hope this helps.

Sep 29, 2009 | Stanley Bostitch N88rh Framing Nailer...

1 Answer

Trigger is stuck

I had one do the same thing and all i did was spray some wd40 all around the trigger its lie a plunger valve and alot of dust was built up in mine ...It worked on mine hope it helps yours

Jan 29, 2009 | Chicago Pneumatic Heavy Duty Jitterbug...

Not finding what you are looking for?
Stanley Bostitch F21PL Nailer Logo

108 people viewed this question

Ask a Question

Usually answered in minutes!

Top Stanley Air Tools & Compressors Experts

John Trevino

Level 3 Expert

1388 Answers


Level 2 Expert

131 Answers

Joe Garcia
Joe Garcia

Level 2 Expert

205 Answers

Are you a Stanley Air Tool and Compressor Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides