Question about Air Tools & Compressors
I have a porter/cable 15 gauge angle finish nailer,I bought 2nd hand.It works 25% of the time.The problem being air escapes through the trigger assembly when I pull the tigger only!I bought a rebuild kit from porter/cable,and replaced 100% of all seals,including the whole triger assembly,and it still does the same thing.I went per instructions.There is"nt a wole lot to these guns to repair.I know the problem is simple to fix if I could figure it out.But in the mean time the gun is worthless to me as is.Hope you can help??Thanks for your help on my compressor problem!It works GOOD now!Thank you!!!!........Dane
The problem that you are describing usually occurs when fine scratches in the head allow air pressure to bypass the orings. Here are a couple of simple tests. Remove the trigger from the gun to give access to the trigger valve plunger. Remove the nails from the gun. While pointing the gun away from you, connect the air supply. There should be no air leaks. Now quickly depress the trigger pin all the way in. This must be done with a very rapidly movement. If the gun fires, then the safety foot is not pushing the trigger pin all the way in. Check for worn trigger or safety mech. When the safety foot is depressed against the work, the trigger pin should be depressed all the way into the trigger valve for the gun to fire. Hold the trigger closed tightly and very firmly depress the gun against the work, the gun should fire. If it does not fire try next test. Remove the head from the gun. Hold it in your hand and depress the headvalve all the way into the head with you thumb. While holding the headvalve in, place a finger over the small venthole on the mating surface of the head and release the headvalve. Vacuum should hold the headvalve in the head for a moment until you release the vent hole. If the headvalve springs back with finger over venthole you must remove the headvalve and inspect the surfaces with maginfing lens for fine scratches. Remove scratches with very fine paper to obtain smooth polished surface. Lube surface with silicone lube (looks like vaseline, sold in small container at Lowes plumbing department used for lubing faucet orings ) re-assemble gun and make sure that you tighten headbolts firmly. You should be ready to work. Good Luck!
Posted on Jan 03, 2009
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Posted on Jan 02, 2017
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