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Old 05-07-2012, 12:54 PM #1
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Join Date: Aug 2005
Location: Quincy, MA
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Strange Problem with my UL SLG

So yesterday I'm at the field and everything is going fine. All of a sudden it starts to become real sunny and turn in to a very nice day. At that point my slg said well its nice out I don't feel like working!

The problem is when I air it up, turn it on, and attempt to fire I get nothing but the click of the solenoid. So I said ok fine I well just relube the bolt assembly. I tried it again and same thing I just get the click of the solenoid. I know air is feeding from the tank to the reg and thru the gun because on rare occasions the gun would cycle. So any idea's?

Also what is the screw on the front of the body just below the barrel? I can't find a reference in the manual
"One shot, one kill but then again everyone likes to see the bonus ball!"
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Old 05-07-2012, 04:48 PM #2
the Lumberjack
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The screws underneath the barrel are plugs installed after the air passages were machined into the body. Never remove those unless you have a leak from them. They are meant to be permanently sealed.

I would try a fresh battery first, it sounds like you aren't getting enough juice to actuate the solenoid every time. Make sure you use a good brand like Energizer or Duracell. They seem to be better for guns with mechanical solenoids.

If you want to make sure you have air going through the gun you can push in the button on the back of the bolt cap. It should vent some air and you should feel tension pushing it out.
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Old 05-28-2012, 09:10 PM #3
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Try a new battery, or batteries. The SLG is pretty picky with 9volts, so if the battery is lacking some voltage, your pancake solenoid probably won't get enough power to energize the sear, especially a sear that has a pressurized bolt pushing against it (unlike most other battery efficient electronic sear-trippers that have a simple sprung hammer pushing against its sear, the SLG has a pressurized bolt pushing against its sear, so it uses more power from the battery to engage it)
Worst case scenario, your pancake solenoid is bad. Worst of the worst case scenario, your electronics are bad, but I highly doubt it.
Other causes might include a too long of a sear spring, a too low of a dwell setting, the bolt assembly might be under-lubricated, and/or the bolt assembly O-ring size(s) are off due to misplacement or swelling


Last edited by tgs-killer : 05-28-2012 at 09:18 PM.
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