Bostitch nail gun troubleshooting- other specific issues Use an Allen wrench and a large hammer to blow the driver free. DeWalt Framing Nailer Troubleshooting / Repair Guidelines I) Symptom: Skips fasteners (won’t fire a nail every time) 1) Wrong nails used e.g. The piston/driver assembly is placed inside a cylinder and is a one piece unit. driver won't retract after firing. If the nail head gets stuck between the barrel and the plunger, the gun gets stuck and only fires air. Hey, I need to get my framing nailer working again asap. • A broken driver. If your nail gun won’t fire the driver could be bent and jammed inside the nail gun preventing it from firing. It has been a very reliable nailer for years so this bums me out in the middle of a commissioned project. If you found that your nail gun won't shoot nails, the most likely reason is that the instrument gets jam. But, in my case, there is no air leaking at all. A jamming nail gun is a rampant problem, and most owners of framing nailer or nail guns often face this scenario. driver retracts slowly. Clipped is 31 to 34 deg only Look to see if the piston top of the driver is aligned in the So if o ring is broke or damaged, the nail gun won't shoot nails. ... Take a look at the parts around the driver and piston cylinder. To examine the driver for damage lift the quick release and examine the driver. Bostitch type 28 deg nails will not work. Bostitch framing nailer won’t retract. If that happened, you need to replace and oil the o ring. O ring creates the seal between the cylinder and the piston. ... the gun doesn't work at all. Bostitch RN45B driver/piston won't fire was created by chrisincolo I just installed the o-rings (kit #RBK13) to fix the two that were worn in the head valve, and on the piston sleeve retainer, which stopped the leaking out of the exhaust port, further keeping the driver from retracting. Plastic cylinder si I do not know if it is oil free or not. All the troubleshooting guides and other people posting online about nail guns always mention air leaking from somewhere. I believe it was a model FN250A and I’ve got thousands of nails for it of different lengths. The piston failed to retract the last 1/8 of an inch. This means the nail heads can not advance into the line of fire. • A stuck nail or staple which has jammed against the driver. Loose/Worn piston oRing- tighten or replace. Air compressors should be drained before each use to prevent damage to the nail gun. It just acts like it is not plugged in. Cracked lower bumper- replace. Therefore, it is necessary to learn how to unjam a nail gun quickly and correctly. I am not entirely sure how the driving piston is supposed to return, however, it fires but wont return without being pushed back up. The nail striker won’t retract. It is made in Taiwan so a bit older. The easiest method to repair the Bostitch nail gun when this happens is to remove the head, uncover the cylinder and place the nail gun on a piece of wood with the nose facing up. The piston is oiled and I can move it smoothly with my finger. clipped head nails in a full round tool or vice versa – or wrong nail angle e.g. My 18 g porter cable nail gun and crown staple gun both shot their last nail/ staple and the mechanism that pushes the item out won't retract and the air now continually shoots out the exhaust port at the top of the gun. Solution: Take an object similar in shape to the driver and try to drive the driver back up by inserting this into the end where the nails are shot from and then clearing the jam. I have used Porter Cable finish nailer I bought used.. Worn/damaged cylinder seal (on the head valve)- replace. poorly sunk nails. Misplaced check band (the rubber band you find around the outer side of the tool’s cylinder)- replace. 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