TM AK47 Troubles

isparkthela · May 3rd, 2010, 13:53

While firing my TM AK47, the gun was in the semi auto position. I pulled the trigger and all the sudden it began to fire in full auto. I was not pulling the trigger and the gun still continued to fire in full auto and continued to do so until I unplugged the battery. Once the battery was unplugged, I then tried to move the fire selector switch from semi auto to the safe position. When I attempted to move the switch, I felt resistance and it did not want to move into safe. I did not want to force it, so I tried to return the fire selector to semi auto and it did not want to engage in semi auto either. So I left the selector in the full auto position. I was curious if the problem remained, so I plugged the battery back in and immediately the gun began to fire in full auto by itself. Even though the gun would fire by itself, it did not make any kind of abnormal sound...

I then disassembled the gun and removed the mechbox. I checked the fire selector plate for any kind of obstruction, and I found nothing. I was then concerned the spring might be compressed, so I plugged the battery back in to attempt to decompress the spring. The gun fired about 3-4 times and then quit firing all together. I tried to pull the trigger and nothing happened. I did noticed when I pulled the trigger that it felt "spongier" then what I remember. I checked the fuse, wires, and all connections...they all seemed to be ok.

Does this problem sound familiar to anyone?

Amos · May 3rd, 2010, 15:23

Sounds like your trigger contacts are burnt out... How old is the gun? What battery do you use with it?

isparkthela · May 3rd, 2010, 15:31

I bought the gun used, so I have no idea how old it is. I installed new gears, bushings, and spring, and have fired 5,000 rounds since. I run 8.4v Elite 2000 4/5A cells.

Amos · May 3rd, 2010, 15:41

Did you inspect the trigger contacts last time you opened it up?

isparkthela · May 3rd, 2010, 15:43

No, unfortunately I had someone else do the install. Would there be visible signs of damage?

Amos · May 3rd, 2010, 15:46

Yup instead of being normal metal colored it'll be blackened and burnt... by the sounds of what's happening to you there is probably small holes in the metal from the arcing..

isparkthela · May 3rd, 2010, 16:06

If that is the problem, are the parts easy to obtain?

Crunchmeister · May 3rd, 2010, 16:08

Yes, parts are easy to come by. Airsoftparts.ca should have what you need.

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May 3rd, 2010, 13:53	#1
isparkthela Trader rating Join Date: May 2009 Location: Minneapolis, Minnesota	TM AK47 Troubles While firing my TM AK47, the gun was in the semi auto position. I pulled the trigger and all the sudden it began to fire in full auto. I was not pulling the trigger and the gun still continued to fire in full auto and continued to do so until I unplugged the battery. Once the battery was unplugged, I then tried to move the fire selector switch from semi auto to the safe position. When I attempted to move the switch, I felt resistance and it did not want to move into safe. I did not want to force it, so I tried to return the fire selector to semi auto and it did not want to engage in semi auto either. So I left the selector in the full auto position. I was curious if the problem remained, so I plugged the battery back in and immediately the gun began to fire in full auto by itself. Even though the gun would fire by itself, it did not make any kind of abnormal sound... I then disassembled the gun and removed the mechbox. I checked the fire selector plate for any kind of obstruction, and I found nothing. I was then concerned the spring might be compressed, so I plugged the battery back in to attempt to decompress the spring. The gun fired about 3-4 times and then quit firing all together. I tried to pull the trigger and nothing happened. I did noticed when I pulled the trigger that it felt "spongier" then what I remember. I checked the fuse, wires, and all connections...they all seemed to be ok. Does this problem sound familiar to anyone?

May 3rd, 2010, 15:23	#2
Amos Trader rating Join Date: Aug 2006 Location: Japan	Sounds like your trigger contacts are burnt out... How old is the gun? What battery do you use with it? __________________ Custom Builds: FA3674U Krinkov G3SD6

May 3rd, 2010, 15:41	#4
Amos Trader rating Join Date: Aug 2006 Location: Japan	Did you inspect the trigger contacts last time you opened it up? __________________ Custom Builds: FA3674U Krinkov G3SD6

May 3rd, 2010, 15:31	#3
isparkthela Trader rating Join Date: May 2009 Location: Minneapolis, Minnesota	I bought the gun used, so I have no idea how old it is. I installed new gears, bushings, and spring, and have fired 5,000 rounds since. I run 8.4v Elite 2000 4/5A cells.

May 3rd, 2010, 15:43	#5
isparkthela Trader rating Join Date: May 2009 Location: Minneapolis, Minnesota	No, unfortunately I had someone else do the install. Would there be visible signs of damage?

May 3rd, 2010, 15:46	#6
Amos Trader rating Join Date: Aug 2006 Location: Japan	Yup instead of being normal metal colored it'll be blackened and burnt... by the sounds of what's happening to you there is probably small holes in the metal from the arcing.. __________________ Custom Builds: FA3674U Krinkov G3SD6

May 3rd, 2010, 16:06	#7
isparkthela Trader rating Join Date: May 2009 Location: Minneapolis, Minnesota	If that is the problem, are the parts easy to obtain?

May 3rd, 2010, 16:08	#8
Crunchmeister Trader rating Join Date: Nov 2007 Location: In your bedroom going though your underwear drawer	Yes, parts are easy to come by. Airsoftparts.ca should have what you need. __________________

TM AK47 Troubles

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