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Home Repair (alt.home.repair) For all homeowners and DIYers with many experienced tradesmen. Solve your toughest home fix-it problems. |
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#1
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Bostitch Nailgun SB-1850BN (air at trigger, does not cycle)
This thing has less than 20 hours and looks brand new (passed
warranty). I contacted Stanley/Bostitch and replaced just about every seal this thing has, including the trigger valve. Using 110psi, I press the trigger and air comes out of the trigger but the gun does not fire (cycle). I'm not about to send this to be repaired since I've seen these refurbished for around $50. Any ideas? When I put it away last July, it worked. |
#2
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Bostitch Nailgun SB-1850BN (air at trigger, does not cycle)
On Sat, 5 Mar 2011 09:28:03 -0800 (PST), Tomas
wrote: This thing has less than 20 hours and looks brand new (passed warranty). I contacted Stanley/Bostitch and replaced just about every seal this thing has, including the trigger valve. Using 110psi, I press the trigger and air comes out of the trigger but the gun does not fire (cycle). I'm not about to send this to be repaired since I've seen these refurbished for around $50. Any ideas? When I put it away last July, it worked. Have you put oil in the gun? Several drops down the hose connector? |
#3
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Bostitch Nailgun SB-1850BN (air at trigger, does not cycle)
On 3/5/2011 11:58 AM, Oren wrote:
On Sat, 5 Mar 2011 09:28:03 -0800 (PST), wrote: This thing has less than 20 hours and looks brand new (passed warranty). I contacted Stanley/Bostitch and replaced just about every seal this thing has, including the trigger valve. Using 110psi, I press the trigger and air comes out of the trigger but the gun does not fire (cycle). I'm not about to send this to be repaired since I've seen these refurbished for around $50. Any ideas? When I put it away last July, it worked. Have you put oil in the gun? Several drops down the hose connector? Or a critter built a nest in the air hole or exhaust? Mud daubers are particularly bad about that around here; wouldn't be first time I'd have found somesuch blockage...leaf cutters are great in the ends of the lawn sprinkler at about the same hole diameter to lay eggs altho not correct time of year for (assuming) NA. -- |
#4
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Bostitch Nailgun SB-1850BN (air at trigger, does not cycle)
On Mar 5, 1:46*pm, dpb wrote:
On 3/5/2011 11:58 AM, Oren wrote: On Sat, 5 Mar 2011 09:28:03 -0800 (PST), wrote: This thing has less than 20 hours and looks brand new (passed warranty). I contacted Stanley/Bostitch and replaced just about every seal this thing has, including the trigger valve. Using 110psi, I press the trigger and air comes out of the trigger but the gun does not fire (cycle). I'm not about to send this to be repaired since I've seen these refurbished for around $50. Any ideas? When I put it away last July, it worked. Have you put oil in the gun? Several drops *down the hose connector? Or a critter built a nest in the air hole or exhaust? *Mud daubers are particularly bad about that around here; wouldn't be first time I'd have found somesuch blockage...leaf cutters are great in the ends of the lawn sprinkler at about the same hole diameter to lay eggs altho not correct time of year for (assuming) NA. -- Plenty of oil and it was stored in a sealed case. I took it apart and replaced the seals, piston head and trigger valve. Everything appears clear and looks brand new. I may tear it down and try once again. |
#5
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Bostitch Nailgun SB-1850BN (air at trigger, does not cycle)
On Sat, 5 Mar 2011 11:19:55 -0800 (PST), Tomas
wrote: On Mar 5, 1:46*pm, dpb wrote: On 3/5/2011 11:58 AM, Oren wrote: On Sat, 5 Mar 2011 09:28:03 -0800 (PST), wrote: This thing has less than 20 hours and looks brand new (passed warranty). I contacted Stanley/Bostitch and replaced just about every seal this thing has, including the trigger valve. Using 110psi, I press the trigger and air comes out of the trigger but the gun does not fire (cycle). I'm not about to send this to be repaired since I've seen these refurbished for around $50. Any ideas? When I put it away last July, it worked. Have you put oil in the gun? Several drops *down the hose connector? Or a critter built a nest in the air hole or exhaust? *Mud daubers are particularly bad about that around here; wouldn't be first time I'd have found somesuch blockage...leaf cutters are great in the ends of the lawn sprinkler at about the same hole diameter to lay eggs altho not correct time of year for (assuming) NA. -- Plenty of oil and it was stored in a sealed case. I took it apart and replaced the seals, piston head and trigger valve. Everything appears clear and looks brand new. I may tear it down and try once again. This is from the manual: Failure to cycle Air supply restriction . . . . . . . . . . . . . . .Check air supply equipment Tool dry, lack of lubrication . . . . . . . . . .Use BOSTITCH Air Tool lubricant Worn head valve O-rings . . . . . . . . . . . .Replace O-rings Broken cylinder cap spring . . . . . . . . . .Replace cylinder cap spring Head valve stuck in cap . . . . . . . ..Disassemble/Check/Lubricate If the O-rings are okay I would look at the spring, making sure it is 'seated' properly. Let us know what you find out, please. |
#6
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Bostitch Nailgun SB-1850BN (air at trigger, does not cycle)
On Sat, 5 Mar 2011 11:19:55 -0800 (PST), Tomas
wrote: On Mar 5, 1:46Â*pm, dpb wrote: On 3/5/2011 11:58 AM, Oren wrote: On Sat, 5 Mar 2011 09:28:03 -0800 (PST), wrote: This thing has less than 20 hours and looks brand new (passed warranty). I contacted Stanley/Bostitch and replaced just about every seal this thing has, including the trigger valve. Using 110psi, I press the trigger and air comes out of the trigger but the gun does not fire (cycle). I'm not about to send this to be repaired since I've seen these refurbished for around $50. Any ideas? When I put it away last July, it worked. Have you put oil in the gun? Several drops Â*down the hose connector? Or a critter built a nest in the air hole or exhaust? Â*Mud daubers are particularly bad about that around here; wouldn't be first time I'd have found somesuch blockage...leaf cutters are great in the ends of the lawn sprinkler at about the same hole diameter to lay eggs altho not correct time of year for (assuming) NA. -- Plenty of oil and it was stored in a sealed case. I took it apart and replaced the seals, piston head and trigger valve. Everything appears clear and looks brand new. I may tear it down and try once again. I have the brad gun that came with the Evolv compressor at Sears. The combo was on sale for $59.99. Nailer looks pretty much like your Bostitch. Shot maybe 500 brads to put in trim and moulding. Think I reloaded about 5 times. Twice I had to pull the front off to clear a nail jam. Clearing the jammed nail wasn't hard to figure out. Twice I had to pull the top head because it wouldn't fire. This thing came with no "naming of the parts" or fix-it guide. All I did then was wiggle the piston. Didn't seem to be stuck and hardly moved in the bore. Figured the gun was just broke. Put it together and it worked. No idea why. My son did that the first time it wouldn't fire, so the second time I just did what he did. Figured if he was lucky I could be too. But I was still surprised it worked after doing that. I asked him how what he did had fixed it. He said, "I dunno, but I do the same with my air tools at work" So there ya go. --Vic |
#7
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Bostitch Nailgun SB-1850BN (air at trigger, does not cycle)
On 3/5/2011 11:28 AM, Tomas wrote:
This thing has less than 20 hours and looks brand new (passed warranty). I contacted Stanley/Bostitch and replaced just about every seal this thing has, including the trigger valve. Using 110psi, I press the trigger and air comes out of the trigger but the gun does not fire (cycle). I'm not about to send this to be repaired since I've seen these refurbished for around $50. Any ideas? When I put it away last July, it worked. Pardon my ignorance but I was under the impression that pneumatic nail guns only fire when the nose piece is pushed against the surface to be nailed. TDD |
#8
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Bostitch Nailgun SB-1850BN (air at trigger, does not cycle)
On Sat, 05 Mar 2011 16:25:20 -0600, The Daring Dufas
wrote: Pardon my ignorance but I was under the impression that pneumatic nail guns only fire when the nose piece is pushed against the surface to be nailed. TDD You are correct. The one exception is if you pull back the little safety do-hickey it will fire. Country boys have been known to shoot at rabbits while standing on the roof. |
#9
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Bostitch Nailgun SB-1850BN (air at trigger, does not cycle)
On Sat, 05 Mar 2011 14:48:53 -0800, Oren wrote:
On Sat, 05 Mar 2011 16:25:20 -0600, The Daring Dufas wrote: Pardon my ignorance but I was under the impression that pneumatic nail guns only fire when the nose piece is pushed against the surface to be nailed. TDD You are correct. The one exception is if you pull back the little safety do-hickey it will fire. Country boys have been known to shoot at rabbits while standing on a roof. Nail gun art: Mona Lisa http://www.youtube.com/watch?v=JbwXUHRcrLE&feature=fvst |
#10
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Bostitch Nailgun SB-1850BN (air at trigger, does not cycle)
"Tomas" wrote in message ... This thing has less than 20 hours and looks brand new (passed warranty). I contacted Stanley/Bostitch and replaced just about every seal this thing has, including the trigger valve. Using 110psi, I press the trigger and air comes out of the trigger but the gun does not fire (cycle). I'm not about to send this to be repaired since I've seen these refurbished for around $50. Any ideas? When I put it away last July, it worked. I do not mean to insult but do you have the correct nails? Also try turning down the pressure a bit. The manual for that model says: quote OPERATING PRESSU 70 to 100 p.s.i.g. (4.9 to 7.0 kg/cm2). Select the operating pressure within this range for best fastener performance. DO NOT EXCEED THIS RECOMMENDED OPERATING PRESSURE. /quote Colbyt |
#11
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Bostitch Nailgun SB-1850BN (air at trigger, does not cycle)
On Mar 5, 1:58*pm, Oren wrote:
On Sat, 5 Mar 2011 09:28:03 -0800 (PST), Tomas wrote: This thing has less than 20 hours and looks brand new (passed warranty). I contacted Stanley/Bostitch and replaced just about every seal this thing has, including the trigger valve. Using 110psi, I press the trigger and air comes out of the trigger but the gun does not fire (cycle). I'm not about to send this to be repaired since I've seen these refurbished for around $50. Any ideas? When I put it away last July, it worked. Have you put oil in the gun? Several drops *down the hose connector? Just dropping a little oil in the air inlet may not be nough for a gun that has set up for a while. The gun may not be working well enough for the oil to get where it needs to be. Take the gun apart and reassemble replacing parts as needed. Apply oil while its apart. Jimmie |
#12
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Bostitch Nailgun SB-1850BN (air at trigger, does not cycle)
On Sun, 6 Mar 2011 04:47:44 -0800 (PST), JIMMIE
wrote: On Mar 5, 1:58*pm, Oren wrote: On Sat, 5 Mar 2011 09:28:03 -0800 (PST), Tomas wrote: This thing has less than 20 hours and looks brand new (passed warranty). I contacted Stanley/Bostitch and replaced just about every seal this thing has, including the trigger valve. Using 110psi, I press the trigger and air comes out of the trigger but the gun does not fire (cycle). I'm not about to send this to be repaired since I've seen these refurbished for around $50. Any ideas? When I put it away last July, it worked. Have you put oil in the gun? Several drops *down the hose connector? Just dropping a little oil in the air inlet may not be nough for a gun that has set up for a while. The gun may not be working well enough for the oil to get where it needs to be. Take the gun apart and reassemble replacing parts as needed. Apply oil while its apart. Jimmie True. The OP replaced some parts, likely to have lube instructions for assembly. Some parts need lube during assembly. I don't have problems with pneumatic tools. Trick is keeping compressor / line moisture out of the tool. My 30+ year old half inch impact wrench has leaked oil in the bottom drawer of the tool box. No problem. I wipe the drawer clean. Hope the OP tells us what he found to be the problem. |
#13
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Bostitch Nailgun SB-1850BN (air at trigger, does not cycle)
On Mar 6, 3:25*pm, Oren wrote:
On Sun, 6 Mar 2011 04:47:44 -0800 (PST), JIMMIE wrote: On Mar 5, 1:58 pm, Oren wrote: On Sat, 5 Mar 2011 09:28:03 -0800 (PST), Tomas wrote: This thing has less than 20 hours and looks brand new (passed warranty). I contacted Stanley/Bostitchand replaced just about every seal this thing has, including thetriggervalve. Using 110psi, I press thetriggerandaircomes out of thetriggerbut the gundoes notfire (cycle). I'mnotabout to send this to be repaired since I've seen these refurbished for around $50. Any ideas? When I put it away last July, it worked. I decided to tear it down one last time and see if I could find anything obvious or a blockage. I did notice something new: there was a very small "air" tunnel in the top part of the head, near the exhaust? It did not appear to be blocked but I blew it out with compressed air just to be safe. I applied some light oil (already had lube) to some of the o-rings. But this time when I put the piston back in, I just barely put it in. Before I pushed it all the way down. Not sure if that made a difference. I reassembled, crossed my fingers and "bang", it works! |
#14
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Bostitch Nailgun SB-1850BN (air at trigger, does not cycle)
On Saturday, March 5, 2011 11:28:03 AM UTC-6, Tomas wrote:
I... replaced just about every seal this thing has... I press the trigger and air comes out of the trigger but the gun does not fire (cycle). I just spent 3 hours overhauling my Hitachi NV65AH and it was doing the same thing. After dismantling it and reassembling it I realized that the gasket was blocking the "small air tunnel" as you put it. She works like a charm.. Amazing that you can't find much info about these problems on the web today. So, make sure the exhaust head cover gasket is not blocking the little small hole that looks like a screw can go in it (flip the gasket over). Also don't snap the exhaust valve all the way in or push the cylinder all the way down. |
#15
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Bostitch Nailgun SB-1850BN (air at trigger, does not cycle)
My gun has no air coming out know where
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#16
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Bostitch Nailgun SB-1850BN (air at trigger, does not cycle)
On Sun, 20 Sep 2015 13:04:22 -0700 (PDT), wrote:
My gun has no air coming out know where I don't know what "know where" means. Maybe an O-ring has failed. Maybe you didn't oil the gun? _ Nail Gun Lives Matter_ |
#17
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Bostitch Nailgun SB-1850BN (air at trigger, does not cycle)
My Bostitch Nailer RN44B has oil and air coming out of the trigger. Can anyone suggest what i should do. I have it torn apart and I don't really see anything wrong.
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#18
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Bostitch Nailgun SB-1850BN (air at trigger, does not cycle)
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#19
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Bostitch Nailgun SB-1850BN (air at trigger, does not cycle)
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#20
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Bostitch Nailgun SB-1850BN (air at trigger, does not cycle)
I have done all of the above suggestions with my SB 1842bn including replacement parts,including oiling all the O-rings, cycling the piston by hand, and including checking the air pressure plus having the proper nails, and it still leaks at the trigger. I've gone through the gun three times, making sure there are no burrs on the piston shaft. The only thing I can find is that the piston seems to hang up ever so slightly towards the top of the cylinder. After applying more oil it seems to move fairly well. btw - I'm a former machinist so I know my way around a wrench. Now what do I do? Any help would be appreciated. Thank you very much.
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#22
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Bostitch Nailgun SB-1850BN (air at trigger, does not cycle)
Great idea I'll give that a shot. Thanks
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#23
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Bostitch Nailgun SB-1850BN (air at trigger, does not cycle)
Good on you.
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#24
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Bostitch Nailgun SB-1850BN (air at trigger, does not cycle)
I'm borrowing a friends bostitch and the same thing happened to me. Thank God I found your post because it totally worked and fixed the problem! Thanks a million for this tip!
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#25
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Bostitch Nailgun SB-1850BN (air at trigger, does not cycle)
On Saturday, March 5, 2011 at 12:28:03 PM UTC-5, Tomas wrote:
This thing has less than 20 hours and looks brand new (passed warranty). I contacted Stanley/Bostitch and replaced just about every seal this thing has, including the trigger valve. Using 110psi, I press the trigger and air comes out of the trigger but the gun does not fire (cycle). I'm not about to send this to be repaired since I've seen these refurbished for around $50. Any ideas? When I put it away last July, it worked. I have a similar problem. Will bot fire nail. Seemed like he trigger wasn't working properly. Took out the 'roll pins' and found that the valve that controls the depth of the nail was nor allowing the safety on the trigger to engage, when pulled. cleaned and was able to get one nail to set and the problem returned. Looks like the adjustment for the pressure/switch release is faulty. Haven't contacted Bostitch. Of course I didn't keep my receipt!! |
#26
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Bostitch Nailgun SB-1850BN (air at trigger, does not cycle)
replying to Tomas, Chris wrote:
I am having the same tr ouble but I cant find were to find the valve at?anyone know were I can get one at? -- for full context, visit https://www.homeownershub.com/mainte...le-624251-.htm |
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