Question about Stanley Bostitch Coil Framing Nailer
Posted by Anonymous on
Remove nails from the canister and test fire the gun very rapidly with side door open against hard rubber (old tire or coiled up rubber hose ) to absorb the energy. Look for driver and feeder to move in time together and driver should return to top each time. If feeder appears to lag behind, check feeder orings and air passage to feeder piston. If driver appears to come out out nose too far or if it does not go back to top every time suspect problem with bumper or cylinder check seal. Look at feed check built into the side door. These must make contact with nails to prevent miss fire. If all appears to look normal, replace the TVA6 valve if the firing pin fits/feels loose in body of the valve. Miss fire occurs when nail checks do not hold nails in place (feed checks on door and feed piston) and or the piston does not go all the way back up so the nail can not feed into place. Less often, miss fire is caused by lower bumper missing pieces /cracking and the crumbeling bumper pieces enter the feed piston chamber preventing the feeder from making full travel forward. One more area to check is the head /headvalve. Remove head and pull out headvalve. Remove fine scratches on surface of head where orings make contact (use 400 grit paper) and lube with silicone paste lube (sold at Lowes in the plumbing department). Finally check the cylinder seal sitting on top of the cylinder. It should fit very snugly against the cylinder and not turn. If it can be turned, replace with new or remove and apply RTV sealant and replace, then wait 24 hours before use. Good luck
Posted on Apr 09, 2011
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Posted on Jan 02, 2017
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