YMMV.  This little device is the power source for the gun, and is the place where the air for your nail gun comes from. I am near Calgary Alberta Canada and … read more I made a mental note to reinstall it with the curve to curve up towards the front of the nose of the nailer. Insure that the nails are compatible with the gun. I disassembled the nailer, removing the piston driver assy.Upon inspection, there was a slight curvature to the steel of the driver. Recently it stopped firing nails. If it's not, the nails will not be fed into the line of the hammer. Hi I have a Porter Cable Brad Nailer Model BN200 18GA Seriel NO. When a nail gets caught in the gun or strikes an object and diverts, it causes a jam, and the nail gun not shooting nails. The nail gun isn’t firing or is firing intermittently. For my guns that use oil I use Marvel Mystery Oil. Nail compatibility. Possible causes for a Paslode nail gun not firing are: A nail jam is stopping the nails from moving forward. If they're not, the gun may not fire, misfire, or self destruct. I have a Porter-Cable FN250C although that might not be the correct model number. If you found that your nail gun won't shoot nails, the most likely reason is that the instrument gets jam. bmich Member. Posts: 75 Threads: 0 Joined: Oct 2017 #11. The Porter-Cable TS056 is as versatile as it is tough. You may need to change oil to something that won’t gum up the works. 09-02-2020, 11:03 PM . I had no air nailers but have access to a couple of air compressors, so I asked if I could … If your gun is firing weakly, or not at all, then you need to check the compressor. I normally use an 18 ga. brad for attaching trim. Make sure the nail feeding mechanism is in place. 031036 that will fire a brad but does not retract the Driver enough to allow another brad to load. My Porter Cable pin nailer is oilless. Therefore, it is necessary to learn how to unjam a nail gun quickly and correctly. This again will lead to you firing the hammer, instead of a nail. Repairing Air Nailers: I saw a neighbor throw out 3 air nailers last week. Its the exact same gun, just about 10 years old. bmich Member. I have a Porter-Cable FN250C although that might not be the correct model number. The gas fuel cell is empty, out-of-date or not attached properly. Porter-Cable FN250C not firing. To replace the piston ring, remove the top cap from the nail gun. Recently it stopped firing nails. Porter-cable nail gun instruction manual (12 pages) ... for electric cable installation and may damage the insulation of electric cables thereby causing electric shock or fire hazards. 09-02-2020, 11:03 PM . Porter-Cable FN250C not firing. This will result in the nail not sinking down deep enough in the material. The first port of call with any malfunctioning nail gun is the compressor. Posts: 80 Threads: 0 Joined: Oct 2017 #11. My Porter cable DA250C 15ga angle nailer was pushing two nails with one pull of the trigger. Never had a problem, but I’m not a heavy user either. Push up on the driver to remove the piston from the nail gun. A leaky piston ring will need to be replaced as it will allow air to escape causing a weak drive on the nail. If you try to fire a pneumatic nail gun or stapler, but only hear air leaking when engaging the trigger, it's likely that your tool's "O-Ring" is not sealing properly.When the trigger is not depressed, you may not hear air leaking, as the valve is probably sealed. Its the exact same gun, just about 10 years old. A Ridgid R213BNE brad nailer, a Porter Cable 125A brad nailer and a Porter Cable RN175A coil roof nailer. Misfiring is the most common repair that we conduct.