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Safety B i had a nail stuck in the driver guide, took the 3 screwss out and the safety B fell out. dont know where it goes? can you halp??? thanks don

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Sounds as if you have a small Bostitch nailer/stapler. Bostitch lables its safety mech parts as Safety A for the part that actually contacts the work and Safety B for the part that contacts the trigger. Go to and look for diagram of your gun. These two parts fit snuggly just behind the outer-most guide/nose. Safety b sits on top of safety a. There is usually a thumb adjustment and a spring between the two parts. The spring is usually installed on top of safety a and below the adjustment knob. enjoy

Posted on Nov 29, 2008

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Nailer will shoot only one nail. will not pull next nail into position. I have replaced feeder spring but with no success. Is there another reason this can happen?

Try different nails sometimes the glew on them is to thick when hot diped or try shorter nails until it gets brokin allso look to see if the driver is retracting after first shot before pulling back slide to remove nails plastic that holds them together might be gitting stuck between the swing guard on top of driver by the safety

Mar 13, 2016 | Air Tools & Compressors

1 Answer

How do i remove the feed door on a bostitch coil framing nail gun?

well finally a question I know all about. Is it N70 or N80? either way you have to take of the magazine and trip cover, don't loose the spacers need them to align stuff, anyway with that off take the spring from under the trip *(safety) you will need a 6mm hex to take off the nose and when the nose is off depending on the model you will have to remove the rubber washer holding the pin in , make sure the driver guide the little silver circular thing goes back in right, which is round part toward the top, I pull the piston out past the bumpers ( two) one is circular and other is mushroom shaped. anyway pull em out grease the oring on the piston and slide that back in and re-assemble. I do it piston / driver first, then bumper that is circular fits inside cylinder and then the mushroom one and before the silver thing( driver guide) I pull the driver all the way up and then it becomes a guide when I put the nose back on. Make sure the safety arm is on the nose before you bolt it down, there is no give, and make sure the trip aligns behind the pins by the trigger the little bracket( safety guide)
the door is held in by a pin and the pin is held by the driver guide and a washer. I take my bench grinder and make a the pin on the end look like a very dull pencil to easily side through the rubber washer during reassembly. I start the pin with the door closed and wiggle the door as needed to make it line up. the groove in the pin, if it has one goes to the bottom.

Aug 02, 2015 | Air Tools & Compressors

1 Answer

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

Why doesn't the trigger do anything on my NS289000 framing nailer?

Nailer not firing is caused by lack of lubrication in the headvalve (lube with white grease) or driver stuck/bent (make sure driver moves freely) or safety foot not depressing the firing pin on the trigger valve all the way in. Easy to check. Remove the trigger to expose the firing pin. With no nails in gun, connect air and depress the firing pin with finger all the way in. If the gun fires, adjust the safety foot. If the gun does not fire, lube headvalve and check driver piston stuck. Good luck

Dec 03, 2013 | Campbell Hausfeld Ns2890 Framing Nailer...

1 Answer

Framing nailer won't fire nails

Usually safety foot is not making full contact to trigger mech. First test trigger valve. Remove nails, remove the trigger to expose the trigger firing pin. Connect air and test fire by pushing in the firing pin with your finger (dry fire onto wood or old coiled rubber hose, use very quick pushing action against trigger pin). If the gun works, replace parts and adjust the safety foot so that the lever below the trigger is pushed all the way up and lever depresses the trigger pin all the way in. Good luck

May 26, 2012 | Air Tools & Compressors

1 Answer

Adjust nail depth 350 mag framing nailer

To adjust the depth of the nail on the coil 350, refer to the parts list listed below.

The safety foot, refrence # 430 or part # 904930 has a slot head bolt. Back off the bolt and move the safety foot down or up and retighten. If however the adjustment will not move enough to keep the driver from setting the nail too deep, then suspect that the bumper, refrence # 130 or part # 897337 has failed and is allowing the driver to travel down the cylinder further than normal. Easy fix. Remove the head and pull out the cylinder and driver to change the bumper. Good luck

Oct 10, 2011 | Porter Cable COIL350 3 12" Magnesium...

1 Answer

Using recommended 3 1/2" nails; cannot get the nailer to sink the nail all the way to the head. Depth is set to max and air pressure within recommended range of 70 to 120 p. s. i. g.

remove the nails and air hose. tap the gun lightly and does the driver fall down?? if so it needs new o rings and doesn't have enough seal to drive the nail. also look at the condition of the driver. FOLLOW CLOSELY, reconnect the gun and remove the nails pull back on the follower and using a piece of wood to activate the safety hold gun at an angle, weara safety glasses and depress and hold trigger to expose the driver, does it extend past the nose and LOOK DONT TOUCH to check the condition of the end. release the trigger. this should give you some ideas why. also recheck the nails for proper collation and head are they clipped or full round. Let me know and I will try and help further. READ closely before attempting the above ideas.

Aug 26, 2010 | Stanley Bostitch F21PL Nailer

1 Answer

I bought a Harbor Freight 34 degree Nail Gun, model 93099. I shot about two clips of nails, but now when I press the trigger, I get a blast of air. I removed the safety trigger and (carefully) pushed in...

if its oiled, then take all the nails out of the track and chamber, check to see if your firing valve is stuck( it is suppose to go up and down , opening and closeing the cylinder, but sometimes it gets stuck) first press the safety in all the way ( you may have to pull the feeder down ) then press the trigger , then hook the hose to the gun in that order this will sometimes unstick the firing valve

Feb 04, 2010 | Air Tools & Compressors

3 Answers

Friend took my 900420 nailer apart to clean it and when he got done, had a small spring about 3/16" x 1" left over. Does anyone have a clue where it might go?

Thin spring?
Goes in-between the Follower Guide and Button.
There are several Coil springs used in a Paslode 900420 framing nailer.

1.In-between the Upper Probe and the Lower Probe.
(Safety device you depress so the gun will shoot)
3.Lockout Bar
4.Follower Guide and Button

(There is a flat spring also. Goes in-between the Probe Stop and Probe Release)

Here let me show you,

Oct 17, 2009 | RTO PasLode 900420 Impulse Framing Nailer

1 Answer

Framing a 2x6 wall

does the nose piece go back as far when you actually use the gun as when you pulled it back? I had the same problem with a different model, The nose piece acts as a safety to stop the gun firing when not up against whatever you are nailing. If it a similar design to mine (and most are) if you follow the nose piece up the gun somewhere along that will be some sort of bend in the metal to form the safety. it sounds like this needs to be bent a little more so it actuates the safety off valve/switch. Be careful though that safety is there for a reason, dont bend it too far and make the safety too sensitive. Hope this helps


Oct 26, 2008 | Stanley Bostitch F21PL Nailer

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