I have a older Bostitch N80 nailer that will not fire. I took it to a local shop and he found a broken part in it but could not find a replacement part. The part is a metal disk about the size and thickness of a half dollar. It was about 3/8" thick in the middle with a rect. hole in it for the "driver?" to go thru. I found a parts list for a N80SB and it sorta looks like part # 50, a Locator Plate (105022), except #50 is a half circle and my part was round. Any further info needed? ph. 325 five37 2564 or e-mail shinnerytree @ yahoo . com Bryce
Easy test, Remove the nails and remove the trigger retainer pin and trigger to expose the trigger valve (tva6 valve). With air connected and nails removed, quickly depress the trigger firing pin all the way in. Gun should fire (if gun fires, adjust safety foot to make better contact with tva6), if no joy air is leaking past orings in the head valve or head gasket vent hole and/or trigger valve. Remove head and check gasket around vent hold (small hole in the head gasket). If the gasket good remove head valve and examine surface where orings make contact for fine scratches. If scratched or worn, orings are not sealing. To check if orings are leaking, apply lots of white grease to orings in the head valve, replace the head and test fire. If the gun fires, sand contact areas with fine sandpaper and or use oversize orings or wind teflon tape under the external orings. The metal ring or washer that you are wondering about is sometimes used to space up the bumper to control depth of nail. Other nailers use a metal fitting under the bumper to help guide the driver and to seal the lower chamber helping to prevent too much air leaking past the driver. If too much air leaks past the driver, guide, the piston may not return to top. Good luck
SOURCE: LEAKING BOSTITCH AIR NAILER
Your welcome. Todg, has a rude way about him, but he's pretty new and his numbers aint so great.
A lot of people forget to include a model number and we can only guess until we have it.
Are you still in need of help?
Worldvet
SOURCE: BOSTITCH AIR POWERED NAILER - AIR LEAK THRU TRIGGER
sounds like the rubber seals have dry rotted prob from not oiling it enough, but you should be able to go on the Bostitch web site and order new rubber seals for the gun
SOURCE: n80sb-1 stanley bostitch framing gun.
Yes your nailer will drive other sizes of nails. For info and parts go to www.bostitch.com and look for the support tab then select service parts. Here you will find parts list and manual. To remove the tva11 trigger valve remove the retainer pin (the pin is 3mm) for the trigger and remove trigger. Next remove roll pin/pins that retain trigger valve. Use heavy glove to catch trigger valve as you apply air pressure to gun. The valve could pop out with great force so try lowering the pressure to gun. Before installing the new valve, check the opening for sharp edges which will cut orings. Good Luck and email if you have more questions.
SOURCE: Stanley Framing Nailer Leaking Air Around Trigger
Your tva11 valve can be repaired easily if you have a source for orings. I purchase orings from several companies including lowes (in plumbing dept sold in 10 pack for about dollar), www.grainger.com (oring kit metric, cost about $10) harbor freight (oring kit about $5), also orings are sold by size at bearing companies. I have repaired many of these valves by just cleaning debris and lubing with silicone paste (sold at lowes in plumbing dept used for lubing faucet orings). To attempt repair of valve, remove nails, remove roll pin that holds trigger (3mm) to expose tva11 valve. Mark position of valve in body of gun because the retaining pins fit thru an indention in the valve. Next remove roll pin/s that hold tva11 valve, they are just above the valve in the body of the gun(3mm x 30mm). You will need to apply air pressure to gun to remove the valve, however use heavy glove to catch valve because it can come out with force. (try lowering air pressure to gun for this procedure. With valve in hand, use marker to mark position of inner part in relation to outer, remove the two pins that hold valve together. Push out the inner cylinder and look at the middle oring(usually the problem, could be loose or cut) , If cut or loose replace and lube with silicone paste and re-assemble. Check outer orings for nicks, replace as necessary (usually good). Clean valve port, lube port, then re-install valve into gun and insert temporary retaining pin and test for leak. You should be good to go. Good luck and email if you have questions.
SOURCE: Leak inside Bostitch N80 Nailer, won't drive nails
If the unit is leaking it most likley need a rebuild kit. Go to a Bostitch service center and ask for an ORK-11 kit. That is all the o-rings needed to do an over haul. Or just have them do it.
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I thought I had the S/N as part of the title but it disappeared. It is B60975 and is a N80 with a long silver nail holder. Bryce
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