Bostitch Nailgun SB-1850BN (air at trigger, does not cycle)
Tomas
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.
Oren
wrote:
Have you put oil in the gun? Several drops down the hose connector?
dpb
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.
--
Tomas
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.
Oren
wrote:
>On Mar 5, 1:46 pm, dpb <n...@non.net> wrote:
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.
Vic Smith
wrote:
>On Mar 5, 1:46 pm, dpb <n...@non.net> wrote:
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
The Daring Dufas
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
Oren
<the-dari...@stinky.net> 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.
Oren
>at rabbits while standing on a roof.
Nail gun art: Mona Lisa
Colbyt
"Tomas" <mis...@cfl.rr.com> wrote in message
news:a85fdd8e-4b54-4dea...@b13g2000prf.googlegroups.com...
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 PRESSURE:
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
JIMMIE
> On Sat, 5 Mar 2011 09:28:03 -0800 (PST), Tomas <misc...@cfl.rr.com>
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
Oren
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.
Tomas
> On Sun, 6 Mar 2011 04:47:44 -0800 (PST), JIMMIE
>
>
>
> <JIMMIEDEE...@YAHOO.COM> wrote:
> >On Mar 5, 1:58 pm, Oren <O...@127.0.0.1> wrote:
> >> On Sat, 5 Mar 2011 09:28:03 -0800 (PST), Tomas <misc...@cfl.rr.com>
> >> wrote:
>
> >> >This thing has less than 20 hours and looks brand new (passed
> >> >seal this thing has, including thetriggervalve. Using 110psi, I
> >> >press thetriggerandaircomes out of thetriggerbut the gundoes
> >> >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!
fran...@gmail.com
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.
jdau...@gmail.com
Oren
>My gun has no air coming out know where
Maybe you didn't oil the gun? _ Nail Gun Lives Matter_
dori...@msn.com
Oren
>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.
dpb
pastor...@gmail.com
Stormin Mormon
> 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.
>
see what their customer service can advise? The one
or two times I've done that, I've been very pleased.
My highest respect for TPI brand natural gas leak
detectors, who helped me diagnose a bad detector
when I called the toll free number. I'd got the unit
on Ebay, and they didn't owe me any thing. But they
were so completely nice about it.
http://www.tequipment.net/TPI720b.asp
--
.
Christopher A. Young
learn more about Jesus
. www.lds.org
.
.
pastor...@gmail.com
Stormin Mormon
katemas...@gmail.com
rjohn...@gmail.com
Haven't contacted Bostitch. Of course I didn't keep my receipt!!
Chris
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?
--
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