What's wrong with my screw gun when the bit keeps falling out when in use?

Sounds like there is a issue with the clip(hopefully) so here’s what I know. After market clips are very close to origional but if they are not identical in every aspect the gun will jam cause the round won’t feed into the chamber and usually the clip falls out cause the bolt pushes it out and it not locked into place cause the lock setting is in the wrong place! Good luck!

When water is running through system, the motor has to run to keep the pressure built up. So, if the water is leaking out, the motor think it needs to keep running to keep the pressure built up. The leak needs to be fixed to the motor will not run constantly.

Yes, the bit should have about 1/2" to 1" of free movement in and out when the gun is not running but should not be able to fall out of the gun when pulled on.

My fn250b has a small tab/lever just below the nail feeder (with no nails in the gun the lever will be just below the nail pusher). Push on the lever with your thumb and the nose will open. This lever is held in place with one screw. If the tab/lever breaks off at the screw or if the screw falls out the lever and its spring will fall off and the front nose will just be loose/ nails will be pushed out. If someone rigged a part to keep the nose closed, you can order the correct parts at www.toolpartsdirect.com. Not really needed however because the gun does not jam that often. Good luck

its fried - return /exchange

The way you load this staple gun is: (1) turn it upside down (2) press the unlock tabs on the rear end of the loading slide trey and pull it back (3) droup a row of staples into the slot w with the pointed end facing up, while keeping the gun upside down, push the spring loaded slide tray forward until the locking tabe engauge. (4) turn the gun rightside up (away from you), and fire it. the stape should come out normally, the rest should not fall out.

HERE their is a collar that slips over the tip holder theirs screws that go through the holes on the tips that secure the melting tip hope this helps

I hope you're talking screw gun and not drill/driver. Screw gun used specifically to set screws in drywall. Make sure you have proper tip in gun (usually #2 phillips). There should be a rotating collar on the gun to control screw depth. The screw should only "dimple" the drywall. It should not tear the paper but should be below the plane of the drywall. To check depth run a putty knife over the screw heads. If you hear it hit, screws need to go a bit deeper. To work quickly; lock the trigger on and place the screw on the gun. Apply steady pressure and let the screw walk into the board until gun breaks free. Takes a bit of practice but pretty soon you'll be flying.

It's not the tip, but the screw gun itself. The screw gun has a clutch on it that allows you to set the screw at different depths. You must adjust the screw gun to the desired depth. The deeper you want the screw to go, the less the clutch will slip.

Jim

There is a small springs steel wire that fits into the chuck. the bit slides into the chuck and then into the spring and the spring holds the bit inside the chuck. This ring seems to be missing. Thus the bit falls out. You might try going to a hardware store and they make a device that is two magnets held together with a rubber band. When they are together there is a small hole in the center. You can slide any screwdriver or bit into the hole in the center and it magnetizes the bit or driver. Magnetizing your bits should keep them from falling out of the ratchet screwdriver.