Question about Stanley Bostitch 18 Gauge Brad Nailer 1 - 1/4IN - BT125K - 2
Driver will not return completely after every shot. It does drive nails all the way in. I replaced the "o"rings and the trigger assembly but the problem still exists.
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: Trigger problems
I have repaird hundreds of nail guns with a problem similar to yours. Depending on the brand and model, the problem can be repaired by checking the following. Headvalve orings should be checked for wear and any surface that the orings contact must be smooth and free from scratches. If the surfaces are scratched try to smooth with fine sandpaper and use light grease instead of oil when assembling. The safety contact foot may not be reaching high enough into the trigger to properly push in the trigger button. Check for worn spots on the trigger that may be filled in with epoxy, loose fitting trigger caused by worn roll pin or retaining pin. Some of the trigger valves as used on many bostitch nailers (tva6 valve) used a plastic pin which contacts the trigger. If this pin is loose or worn the valve should be replaced. Some tva6 valves have a vinyl looking sort of oring that fits too loose on the spool. This vinyl oring in not available by itself but if the oring fits too loose the gun will not fire and leak air. On bostitch remove the trigger and the rollpins holding the trigger valve and apply air to gun to eject valve. (use heavy glove to catch valve as it will come out with force)
Posted on Nov 25, 2008
There could be a bunch of different problems with a nail gun that does this. First and foremost check to make sure you are using the correct angle,diameter, and head nails for the gun you are using. Sometimes this can cause hangups and not allow the driver to retract. After checking this I would let someone who has worked on nail guns before take a look at it. There could be many different causes, too many to list here. Good luck.
Posted on Sep 09, 2009
are you making sure that you have the slots aligned where the pins go into it. also did you lube the o rings before trying to install.and I assume that you removed the trigger assembly first. Let me know what you find that I have suggested and I will try and come up with more but this should help as long as you bought the right valve assembly, and lastly make sure that the cap on top of the old valve is not stuck in the tool not allowing you to insert the new one.
Posted on Dec 09, 2009
Do you lubricate it regularly? Give it a squirt of oil, see if that brings it back to where it should be.
That's a nice gun, when I can afford it I'll have one too.
Posted on Dec 29, 2010
SOURCE: I have a N-60 finish
the trigger valve could be causing a lot of your problems, you are correct in ordering the o rings and trigger valve, make sure to lightly coat the o rings before installl. If you have trouble with the valve I have detailed instructions in the TIP section on how to remove safely.
Posted on Aug 16, 2011
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