Bostitch electric nailer shoots two nails at time, how do I fix?

Parts are piston driver replace the point has a problem replace driver AND important use the right nails i think the nails are the nails are not big enough 40% chance this is the problem but when you have shoot on a hard surface the point of the driver will get 2 nails at a time and control part 52 that its not dirty or kinked. and the transport is clean.

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For a visual on what type of nail you should use go here:

http://packagingandfastening.com/air_stick_nails_28_degree_framing.htm

You will find a list of differnet nails sold that will work on your gun. Bostitch is about the only nailer that uses a welded wire strip of nails. Good luck

This is a fantastic nailer, very powerfull. Information about your nailer can be found below.

http://www.bostitch.com/default.asp?CATEGORY=BOS_FRAM_NAILER&TYPE=PRODUCT&PARTNUMBER=F21PL&SDesc=21%26%23176%3B+Industrial+Framing+Nailer+System

You should not need to lube the rails for the nails to feed. Your nailer uses plastic collated nails and should travel very easily inside the rails. I would remove all the nails and check for broken pieces of plastic from nail strips. Feeder should feel snug within rails and not wobble and spring should pull tight. When you install the nails do not release feeder against the nails with force as this could break the plastic strips and cause jam. Nail not feeding is usually caused by wrong nails, weak pusher spring or pusher guides broken /missing. Simple test for proper nails.
Place a strip of nails on the outside of the rails aligned with the edge of the rails and see if the first nail is perfectly aligned with the path of the driver. If the head of the first nail is angled back slightly from the path of the driver, the nails will not feed properly. Good luck.

This nailer is notorious for this try pulling the nail holder back and let it rohold the nails each time

Unfortunatly that is a common problem for those nailers. If you replace the contact housing assembly,that usually fixes the problem. P/N 174084 Bostitch service center will have the proper parts.

hi you may have a nail jammed in carousel.. unplug and dismantel and locate jammed nail. this happended to me once so this may be your problem

if u are right nails for gun,then make sure when u put coil in and feed in front of firing pin the nails are straight with pin and connecting wires are not bent causing nails to fall out of alingnment.

sounds like driver is bent or worn

wrong gauge nails or wrong head type nails check that the magazine is not loose